Normalized line endings
This commit is contained in:
David Williams
@ -1,74 +1,74 @@
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# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
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||||
|
||||
PROJECT(BasicExample)
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||||
|
||||
#Projects source files
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||||
SET(SRC_FILES
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||||
main.cpp
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||||
../common/OpenGLWidget.cpp
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||||
)
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||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
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||||
OpenGLWidget.h
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||||
)
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||||
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||||
add_definitions(-DGLEW_STATIC)
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||||
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FIND_PACKAGE(OpenGL REQUIRED)
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||||
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||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
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INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
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LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
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||||
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||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
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||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC})
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#Build
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ADD_EXECUTABLE(BasicExample ${SRC_FILES} ${COMMON_RESOURCES_RCC})
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IF(MSVC)
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||||
SET_TARGET_PROPERTIES(BasicExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
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||||
ENDIF(MSVC)
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||||
TARGET_LINK_LIBRARIES(BasicExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
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||||
SET_PROPERTY(TARGET BasicExample PROPERTY FOLDER "Examples")
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||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
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||||
INSTALL(TARGETS BasicExample
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RUNTIME DESTINATION Examples/OpenGL/bin
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LIBRARY DESTINATION Examples/OpenGL/lib
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ARCHIVE DESTINATION Examples/OpenGL/lib
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||||
COMPONENT example
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||||
)
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||||
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||||
#.dlls should be installed in shared builds.
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||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
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||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
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||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
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||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(BasicExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
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||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
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||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC})
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||||
|
||||
#Build
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||||
ADD_EXECUTABLE(BasicExample ${SRC_FILES} ${COMMON_RESOURCES_RCC})
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||||
IF(MSVC)
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||||
SET_TARGET_PROPERTIES(BasicExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
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||||
ENDIF(MSVC)
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||||
TARGET_LINK_LIBRARIES(BasicExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
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SET_PROPERTY(TARGET BasicExample PROPERTY FOLDER "Examples")
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||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
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||||
INSTALL(TARGETS BasicExample
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||||
RUNTIME DESTINATION Examples/OpenGL/bin
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||||
LIBRARY DESTINATION Examples/OpenGL/lib
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||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
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||||
)
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||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
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||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
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||||
ENDIF(WIN32)
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||||
|
||||
@ -1,95 +1,95 @@
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||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
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||||
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||||
#include "PolyVoxCore/CubicSurfaceExtractor.h"
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||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
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||||
#include "PolyVoxCore/Mesh.h"
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||||
#include "PolyVoxCore/PagedVolume.h"
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||||
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||||
#include <QApplication>
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||||
|
||||
//Use the PolyVox namespace
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||||
using namespace PolyVox;
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||||
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||||
void createSphereInVolume(PagedVolume<uint8_t>& volData, float fRadius)
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||||
{
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//This vector hold the position of the center of the volume
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Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
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||||
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//This three-level for loop iterates over every voxel in the volume
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for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
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||||
//Store our current position as a vector...
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||||
Vector3DFloat v3dCurrentPos(x,y,z);
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//And compute how far the current position is from the center of the volume
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float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
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uint8_t uVoxelValue = 0;
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//If the current voxel is less than 'radius' units from the center then we make it solid.
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if(fDistToCenter <= fRadius)
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{
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//Our new voxel value
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uVoxelValue = 255;
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}
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//Wrte the voxel value into the volume
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volData.setVoxelAt(x, y, z, uVoxelValue);
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}
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}
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}
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}
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int main(int argc, char *argv[])
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||||
{
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||||
//Create and show the Qt OpenGL window
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QApplication app(argc, argv);
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OpenGLWidget openGLWidget(0);
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||||
openGLWidget.show();
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||||
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||||
//Create an empty volume and then place a sphere in it
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PagedVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include "PolyVoxCore/CubicSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<uint8_t>& volData, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
uint8_t uVoxelValue = 0;
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center then we make it solid.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new voxel value
|
||||
uVoxelValue = 255;
|
||||
}
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, uVoxelValue);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
//Create an empty volume and then place a sphere in it
|
||||
PagedVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
createSphereInVolume(volData, 30);
|
||||
|
||||
// Extract the surface for the specified region of the volume. Uncomment the line for the kind of surface extraction you want to see.
|
||||
auto mesh = extractCubicMesh(&volData, volData.getEnclosingRegion());
|
||||
auto mesh = extractCubicMesh(&volData, volData.getEnclosingRegion());
|
||||
//auto mesh = extractMarchingCubesMesh(&volData, volData.getEnclosingRegion());
|
||||
|
||||
// The surface extractor outputs the mesh in an efficient compressed format which is not directly suitable for rendering. The easiest approach is to
|
||||
// decode this on the CPU as shown below, though more advanced applications can upload the compressed mesh to the GPU and decompress in shader code.
|
||||
auto decodedMesh = decodeMesh(mesh);
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
openGLWidget.addMesh(decodedMesh);
|
||||
//openGLWidget.addMesh(mesh2);
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
openGLWidget.addMesh(decodedMesh);
|
||||
//openGLWidget.addMesh(mesh2);
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
}
|
||||
@ -1,75 +1,75 @@
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(DecodeOnGPUExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
QT4_ADD_RESOURCES(DECODE_RESOURCES_RCC decode.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC} decode.qrc ${DECODE_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(DecodeOnGPUExample ${SRC_FILES} ${COMMON_RESOURCES_RCC} ${DECODE_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(DecodeOnGPUExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(DecodeOnGPUExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET DecodeOnGPUExample PROPERTY FOLDER "Examples")
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS DecodeOnGPUExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(DecodeOnGPUExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
QT4_ADD_RESOURCES(DECODE_RESOURCES_RCC decode.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC} decode.qrc ${DECODE_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(DecodeOnGPUExample ${SRC_FILES} ${COMMON_RESOURCES_RCC} ${DECODE_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(DecodeOnGPUExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(DecodeOnGPUExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET DecodeOnGPUExample PROPERTY FOLDER "Examples")
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS DecodeOnGPUExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
|
||||
@ -1,167 +1,167 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include "PolyVoxCore/CubicSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<uint8_t>& volData, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
uint8_t uVoxelValue = 0;
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center then we make it solid.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new voxel value
|
||||
uVoxelValue = 255;
|
||||
}
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, uVoxelValue);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
OpenGLMeshData buildOpenGLMeshData(const PolyVox::Mesh< PolyVox::MarchingCubesVertex< uint8_t > >& surfaceMesh, const PolyVox::Vector3DInt32& translation = PolyVox::Vector3DInt32(0, 0, 0), float scale = 1.0f)
|
||||
{
|
||||
// Convienient access to the vertices and indices
|
||||
const auto& vecIndices = surfaceMesh.getIndices();
|
||||
const auto& vecVertices = surfaceMesh.getVertices();
|
||||
|
||||
// This struct holds the OpenGL properties (buffer handles, etc) which will be used
|
||||
// to render our mesh. We copy the data from the PolyVox mesh into this structure.
|
||||
OpenGLMeshData meshData;
|
||||
|
||||
// Create the VAO for the mesh
|
||||
glGenVertexArrays(1, &(meshData.vertexArrayObject));
|
||||
glBindVertexArray(meshData.vertexArrayObject);
|
||||
|
||||
// The GL_ARRAY_BUFFER will contain the list of vertex positions
|
||||
glGenBuffers(1, &(meshData.vertexBuffer));
|
||||
glBindBuffer(GL_ARRAY_BUFFER, meshData.vertexBuffer);
|
||||
glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(MarchingCubesVertex< uint8_t >), vecVertices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// and GL_ELEMENT_ARRAY_BUFFER will contain the indices
|
||||
glGenBuffers(1, &(meshData.indexBuffer));
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, meshData.indexBuffer);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(uint32_t), vecIndices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// Every surface extractor outputs valid positions for the vertices, so tell OpenGL how these are laid out
|
||||
glEnableVertexAttribArray(0); // Attrib '0' is the vertex positions
|
||||
glVertexAttribIPointer(0, 3, GL_UNSIGNED_SHORT, sizeof(MarchingCubesVertex< uint8_t >), (GLvoid*)(offsetof(MarchingCubesVertex< uint8_t >, encodedPosition))); //take the first 3 floats from every sizeof(decltype(vecVertices)::value_type)
|
||||
|
||||
// Some surface extractors also generate normals, so tell OpenGL how these are laid out. If a surface extractor
|
||||
// does not generate normals then nonsense values are written into the buffer here and sghould be ignored by the
|
||||
// shader. This is mostly just to simplify this example code - in a real application you will know whether your
|
||||
// chosen surface extractor generates normals and can skip uploading them if not.
|
||||
glEnableVertexAttribArray(1); // Attrib '1' is the vertex normals.
|
||||
glVertexAttribIPointer(1, 1, GL_UNSIGNED_SHORT, sizeof(MarchingCubesVertex< uint8_t >), (GLvoid*)(offsetof(MarchingCubesVertex< uint8_t >, encodedNormal)));
|
||||
|
||||
// Finally a surface extractor will probably output additional data. This is highly application dependant. For this example code
|
||||
// we're just uploading it as a set of bytes which we can read individually, but real code will want to do something specialised here.
|
||||
glEnableVertexAttribArray(2); //We're talking about shader attribute '2'
|
||||
GLint size = (std::min)(sizeof(uint8_t), size_t(4)); // Can't upload more that 4 components (vec4 is GLSL's biggest type)
|
||||
glVertexAttribIPointer(2, size, GL_UNSIGNED_BYTE, sizeof(MarchingCubesVertex< uint8_t >), (GLvoid*)(offsetof(MarchingCubesVertex< uint8_t >, data)));
|
||||
|
||||
// We're done uploading and can now unbind.
|
||||
glBindVertexArray(0);
|
||||
|
||||
// A few additional properties can be copied across for use during rendering.
|
||||
meshData.noOfIndices = vecIndices.size();
|
||||
meshData.translation = QVector3D(translation.getX(), translation.getY(), translation.getZ());
|
||||
meshData.scale = scale;
|
||||
|
||||
// Set 16 or 32-bit index buffer size.
|
||||
meshData.indexType = sizeof(PolyVox::Mesh< PolyVox::MarchingCubesVertex< uint8_t > >::IndexType) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
|
||||
|
||||
return meshData;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
QSharedPointer<QGLShaderProgram> shader(new QGLShaderProgram);
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Vertex, ":/decode.vert"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Fragment, ":/decode.frag"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
openGLWidget.setShader(shader);
|
||||
|
||||
//Create an empty volume and then place a sphere in it
|
||||
PagedVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include "PolyVoxCore/CubicSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<uint8_t>& volData, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
uint8_t uVoxelValue = 0;
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center then we make it solid.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new voxel value
|
||||
uVoxelValue = 255;
|
||||
}
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, uVoxelValue);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
OpenGLMeshData buildOpenGLMeshData(const PolyVox::Mesh< PolyVox::MarchingCubesVertex< uint8_t > >& surfaceMesh, const PolyVox::Vector3DInt32& translation = PolyVox::Vector3DInt32(0, 0, 0), float scale = 1.0f)
|
||||
{
|
||||
// Convienient access to the vertices and indices
|
||||
const auto& vecIndices = surfaceMesh.getIndices();
|
||||
const auto& vecVertices = surfaceMesh.getVertices();
|
||||
|
||||
// This struct holds the OpenGL properties (buffer handles, etc) which will be used
|
||||
// to render our mesh. We copy the data from the PolyVox mesh into this structure.
|
||||
OpenGLMeshData meshData;
|
||||
|
||||
// Create the VAO for the mesh
|
||||
glGenVertexArrays(1, &(meshData.vertexArrayObject));
|
||||
glBindVertexArray(meshData.vertexArrayObject);
|
||||
|
||||
// The GL_ARRAY_BUFFER will contain the list of vertex positions
|
||||
glGenBuffers(1, &(meshData.vertexBuffer));
|
||||
glBindBuffer(GL_ARRAY_BUFFER, meshData.vertexBuffer);
|
||||
glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(MarchingCubesVertex< uint8_t >), vecVertices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// and GL_ELEMENT_ARRAY_BUFFER will contain the indices
|
||||
glGenBuffers(1, &(meshData.indexBuffer));
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, meshData.indexBuffer);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(uint32_t), vecIndices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// Every surface extractor outputs valid positions for the vertices, so tell OpenGL how these are laid out
|
||||
glEnableVertexAttribArray(0); // Attrib '0' is the vertex positions
|
||||
glVertexAttribIPointer(0, 3, GL_UNSIGNED_SHORT, sizeof(MarchingCubesVertex< uint8_t >), (GLvoid*)(offsetof(MarchingCubesVertex< uint8_t >, encodedPosition))); //take the first 3 floats from every sizeof(decltype(vecVertices)::value_type)
|
||||
|
||||
// Some surface extractors also generate normals, so tell OpenGL how these are laid out. If a surface extractor
|
||||
// does not generate normals then nonsense values are written into the buffer here and sghould be ignored by the
|
||||
// shader. This is mostly just to simplify this example code - in a real application you will know whether your
|
||||
// chosen surface extractor generates normals and can skip uploading them if not.
|
||||
glEnableVertexAttribArray(1); // Attrib '1' is the vertex normals.
|
||||
glVertexAttribIPointer(1, 1, GL_UNSIGNED_SHORT, sizeof(MarchingCubesVertex< uint8_t >), (GLvoid*)(offsetof(MarchingCubesVertex< uint8_t >, encodedNormal)));
|
||||
|
||||
// Finally a surface extractor will probably output additional data. This is highly application dependant. For this example code
|
||||
// we're just uploading it as a set of bytes which we can read individually, but real code will want to do something specialised here.
|
||||
glEnableVertexAttribArray(2); //We're talking about shader attribute '2'
|
||||
GLint size = (std::min)(sizeof(uint8_t), size_t(4)); // Can't upload more that 4 components (vec4 is GLSL's biggest type)
|
||||
glVertexAttribIPointer(2, size, GL_UNSIGNED_BYTE, sizeof(MarchingCubesVertex< uint8_t >), (GLvoid*)(offsetof(MarchingCubesVertex< uint8_t >, data)));
|
||||
|
||||
// We're done uploading and can now unbind.
|
||||
glBindVertexArray(0);
|
||||
|
||||
// A few additional properties can be copied across for use during rendering.
|
||||
meshData.noOfIndices = vecIndices.size();
|
||||
meshData.translation = QVector3D(translation.getX(), translation.getY(), translation.getZ());
|
||||
meshData.scale = scale;
|
||||
|
||||
// Set 16 or 32-bit index buffer size.
|
||||
meshData.indexType = sizeof(PolyVox::Mesh< PolyVox::MarchingCubesVertex< uint8_t > >::IndexType) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
|
||||
|
||||
return meshData;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
QSharedPointer<QGLShaderProgram> shader(new QGLShaderProgram);
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Vertex, ":/decode.vert"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Fragment, ":/decode.frag"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
openGLWidget.setShader(shader);
|
||||
|
||||
//Create an empty volume and then place a sphere in it
|
||||
PagedVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
createSphereInVolume(volData, 30);
|
||||
|
||||
// Extract the surface for the specified region of the volume. Uncomment the line for the kind of surface extraction you want to see.
|
||||
//auto mesh = extractCubicMesh(&volData, volData.getEnclosingRegion());
|
||||
//auto mesh = extractCubicMesh(&volData, volData.getEnclosingRegion());
|
||||
auto mesh = extractMarchingCubesMesh(&volData, volData.getEnclosingRegion());
|
||||
|
||||
// The surface extractor outputs the mesh in an efficient compressed format which is not directly suitable for rendering. The easiest approach is to
|
||||
// decode this on the CPU as shown below, though more advanced applications can upload the compressed mesh to the GPU and decompress in shader code.
|
||||
//auto decodedMesh = decodeMesh(mesh);
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
OpenGLMeshData meshData = buildOpenGLMeshData(mesh);
|
||||
openGLWidget.addMeshData(meshData);
|
||||
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
OpenGLMeshData meshData = buildOpenGLMeshData(mesh);
|
||||
openGLWidget.addMeshData(meshData);
|
||||
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
}
|
||||
@ -1,77 +1,77 @@
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(OpenGLExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
Shapes.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
Shapes.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
QT4_ADD_RESOURCES(OPENGLEXAMPLE_RESOURCES_RCC openglexample.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC} openglexample.qrc ${OPENGLEXAMPLE_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(OpenGLExample ${SRC_FILES} ${COMMON_RESOURCES_RCC} ${OPENGLEXAMPLE_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(OpenGLExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(OpenGLExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET OpenGLExample PROPERTY FOLDER "Examples")
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS OpenGLExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(OpenGLExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
Shapes.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
Shapes.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
QT4_ADD_RESOURCES(OPENGLEXAMPLE_RESOURCES_RCC openglexample.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC} openglexample.qrc ${OPENGLEXAMPLE_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(OpenGLExample ${SRC_FILES} ${COMMON_RESOURCES_RCC} ${OPENGLEXAMPLE_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(OpenGLExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(OpenGLExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET OpenGLExample PROPERTY FOLDER "Examples")
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS OpenGLExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
|
||||
@ -1,73 +1,73 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "Shapes.h"
|
||||
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<MaterialDensityPair88>& volData, float fRadius, uint8_t uValue)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DInt32 v3dVolCenter = (volData.getEnclosingRegion().getUpperCorner() - volData.getEnclosingRegion().getLowerCorner()) / static_cast<int32_t>(2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DInt32 v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
double fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center
|
||||
//then we make it solid, otherwise we make it empty space.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
volData.setVoxelAt(x,y,z, MaterialDensityPair88(uValue, uValue > 0 ? MaterialDensityPair88::getMaxDensity() : MaterialDensityPair88::getMinDensity()));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void createCubeInVolume(PagedVolume<MaterialDensityPair88>& volData, Vector3DInt32 lowerCorner, Vector3DInt32 upperCorner, uint8_t uValue)
|
||||
{
|
||||
uint8_t maxDen = MaterialDensityPair88::getMaxDensity();
|
||||
uint8_t minDen = MaterialDensityPair88::getMinDensity();
|
||||
//This three-level for loop iterates over every voxel between the specified corners
|
||||
for (int z = lowerCorner.getZ(); z <= upperCorner.getZ(); z++)
|
||||
{
|
||||
for (int y = lowerCorner.getY(); y <= upperCorner.getY(); y++)
|
||||
{
|
||||
for (int x = lowerCorner.getX() ; x <= upperCorner.getX(); x++)
|
||||
{
|
||||
volData.setVoxelAt(x,y,z, MaterialDensityPair88(uValue, uValue > 0 ? maxDen : minDen));
|
||||
}
|
||||
}
|
||||
}
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "Shapes.h"
|
||||
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<MaterialDensityPair88>& volData, float fRadius, uint8_t uValue)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DInt32 v3dVolCenter = (volData.getEnclosingRegion().getUpperCorner() - volData.getEnclosingRegion().getLowerCorner()) / static_cast<int32_t>(2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DInt32 v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
double fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center
|
||||
//then we make it solid, otherwise we make it empty space.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
volData.setVoxelAt(x,y,z, MaterialDensityPair88(uValue, uValue > 0 ? MaterialDensityPair88::getMaxDensity() : MaterialDensityPair88::getMinDensity()));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void createCubeInVolume(PagedVolume<MaterialDensityPair88>& volData, Vector3DInt32 lowerCorner, Vector3DInt32 upperCorner, uint8_t uValue)
|
||||
{
|
||||
uint8_t maxDen = MaterialDensityPair88::getMaxDensity();
|
||||
uint8_t minDen = MaterialDensityPair88::getMinDensity();
|
||||
//This three-level for loop iterates over every voxel between the specified corners
|
||||
for (int z = lowerCorner.getZ(); z <= upperCorner.getZ(); z++)
|
||||
{
|
||||
for (int y = lowerCorner.getY(); y <= upperCorner.getY(); y++)
|
||||
{
|
||||
for (int x = lowerCorner.getX() ; x <= upperCorner.getX(); x++)
|
||||
{
|
||||
volData.setVoxelAt(x,y,z, MaterialDensityPair88(uValue, uValue > 0 ? maxDen : minDen));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,33 +1,33 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef __OpenGLExample_Shapes_H__
|
||||
#define __OpenGLExample_Shapes_H__
|
||||
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
|
||||
void createSphereInVolume(PolyVox::LargeVolume<PolyVox::MaterialDensityPair88>& volData, float fRadius, uint8_t uValue);
|
||||
void createCubeInVolume(PolyVox::LargeVolume<PolyVox::MaterialDensityPair88>& volData, PolyVox::Vector3DInt32 lowerCorner, PolyVox::Vector3DInt32 upperCorner, uint8_t uValue);
|
||||
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef __OpenGLExample_Shapes_H__
|
||||
#define __OpenGLExample_Shapes_H__
|
||||
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
|
||||
void createSphereInVolume(PolyVox::LargeVolume<PolyVox::MaterialDensityPair88>& volData, float fRadius, uint8_t uValue);
|
||||
void createCubeInVolume(PolyVox::LargeVolume<PolyVox::MaterialDensityPair88>& volData, PolyVox::Vector3DInt32 lowerCorner, PolyVox::Vector3DInt32 upperCorner, uint8_t uValue);
|
||||
|
||||
#endif //__OpenGLExample_Shapes_H__
|
||||
@ -1,146 +1,146 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "PolyVoxCore/FilePager.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
#include "PolyVoxCore/LowPassFilter.h"
|
||||
#include "PolyVoxCore/RawVolume.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/Impl/Utility.h"
|
||||
|
||||
#include "Shapes.h"
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#ifdef WIN32
|
||||
#include <windows.h> // Standard Header For Most Programs
|
||||
#endif
|
||||
|
||||
#include <QApplication>
|
||||
#include <QTime>
|
||||
|
||||
//Some namespaces we need
|
||||
using namespace std;
|
||||
using namespace PolyVox;
|
||||
using namespace std;
|
||||
|
||||
const int32_t g_uVolumeSideLength = 128;
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
FilePager<MaterialDensityPair88>* pager = new FilePager<MaterialDensityPair88>(".");
|
||||
PagedVolume<MaterialDensityPair88> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(g_uVolumeSideLength - 1, g_uVolumeSideLength - 1, g_uVolumeSideLength - 1)), pager);
|
||||
|
||||
//Make our volume contain a sphere in the center.
|
||||
int32_t minPos = 0;
|
||||
int32_t midPos = g_uVolumeSideLength / 2;
|
||||
int32_t maxPos = g_uVolumeSideLength - 1;
|
||||
|
||||
cout << "Creating sphere 1" << std::endl;
|
||||
createSphereInVolume(volData, 60.0f, 5);
|
||||
cout << "Creating sphere 2" << std::endl;
|
||||
createSphereInVolume(volData, 50.0f, 4);
|
||||
cout << "Creating sphere 3" << std::endl;
|
||||
createSphereInVolume(volData, 40.0f, 3);
|
||||
cout << "Creating sphere 4" << std::endl;
|
||||
createSphereInVolume(volData, 30.0f, 2);
|
||||
cout << "Creating sphere 5" << std::endl;
|
||||
createSphereInVolume(volData, 20.0f, 1);
|
||||
|
||||
cout << "Creating cubes" << std::endl;
|
||||
createCubeInVolume(volData, Vector3DInt32(minPos, minPos, minPos), Vector3DInt32(midPos-1, midPos-1, midPos-1), 0);
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos+1, midPos+1, minPos), Vector3DInt32(maxPos, maxPos, midPos-1), 0);
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos+1, minPos, midPos+1), Vector3DInt32(maxPos, midPos-1, maxPos), 0);
|
||||
createCubeInVolume(volData, Vector3DInt32(minPos, midPos+1, midPos+1), Vector3DInt32(midPos-1, maxPos, maxPos), 0);
|
||||
|
||||
createCubeInVolume(volData, Vector3DInt32(1, midPos-10, midPos-10), Vector3DInt32(maxPos-1, midPos+10, midPos+10), MaterialDensityPair44::getMaxDensity());
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos-10, 1, midPos-10), Vector3DInt32(midPos+10, maxPos-1, midPos+10), MaterialDensityPair44::getMaxDensity());
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos-10, midPos-10 ,1), Vector3DInt32(midPos+10, midPos+10, maxPos-1), MaterialDensityPair44::getMaxDensity());
|
||||
|
||||
QApplication app(argc, argv);
|
||||
|
||||
OpenGLWidget openGLWidget(0);
|
||||
|
||||
|
||||
openGLWidget.show();
|
||||
|
||||
QSharedPointer<QGLShaderProgram> shader(new QGLShaderProgram);
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Vertex, ":/openglexample.vert"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Fragment, ":/openglexample.frag"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
openGLWidget.setShader(shader);
|
||||
|
||||
QTime time;
|
||||
time.start();
|
||||
//openGLWidget.setVolume(&volData);
|
||||
cout << endl << "Time taken = " << time.elapsed() / 1000.0f << "s" << endl << endl;
|
||||
|
||||
const int32_t extractedRegionSize = 32;
|
||||
int meshCounter = 0;
|
||||
|
||||
for (int32_t z = 0; z < volData.getDepth(); z += extractedRegionSize)
|
||||
{
|
||||
for (int32_t y = 0; y < volData.getHeight(); y += extractedRegionSize)
|
||||
{
|
||||
for (int32_t x = 0; x < volData.getWidth(); x += extractedRegionSize)
|
||||
{
|
||||
// Specify the region to extract based on a starting position and the desired region sze.
|
||||
PolyVox::Region regToExtract(x, y, z, x + extractedRegionSize, y + extractedRegionSize, z + extractedRegionSize);
|
||||
|
||||
// If you uncomment this line you will be able to see that the volume is rendered as multiple seperate meshes.
|
||||
//regToExtract.shrink(1);
|
||||
|
||||
// Perform the extraction for this region of the volume
|
||||
auto mesh = extractMarchingCubesMesh(&volData, regToExtract);
|
||||
|
||||
// The returned mesh needs to be decoded to be appropriate for GPU rendering.
|
||||
auto decodedMesh = decodeMesh(mesh);
|
||||
|
||||
// Pass the surface to the OpenGL window. Note that we are also passing an offset in this multi-mesh example. This is because
|
||||
// the surface extractors return a mesh with 'local space' positions to reduce storage requirements and precision problems.
|
||||
openGLWidget.addMesh(decodedMesh, decodedMesh.getOffset());
|
||||
|
||||
meshCounter++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
cout << "Rendering volume as " << meshCounter << " seperate meshes" << endl;
|
||||
|
||||
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
|
||||
return app.exec();
|
||||
}
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "PolyVoxCore/FilePager.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
#include "PolyVoxCore/LowPassFilter.h"
|
||||
#include "PolyVoxCore/RawVolume.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/Impl/Utility.h"
|
||||
|
||||
#include "Shapes.h"
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#ifdef WIN32
|
||||
#include <windows.h> // Standard Header For Most Programs
|
||||
#endif
|
||||
|
||||
#include <QApplication>
|
||||
#include <QTime>
|
||||
|
||||
//Some namespaces we need
|
||||
using namespace std;
|
||||
using namespace PolyVox;
|
||||
using namespace std;
|
||||
|
||||
const int32_t g_uVolumeSideLength = 128;
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
FilePager<MaterialDensityPair88>* pager = new FilePager<MaterialDensityPair88>(".");
|
||||
PagedVolume<MaterialDensityPair88> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(g_uVolumeSideLength - 1, g_uVolumeSideLength - 1, g_uVolumeSideLength - 1)), pager);
|
||||
|
||||
//Make our volume contain a sphere in the center.
|
||||
int32_t minPos = 0;
|
||||
int32_t midPos = g_uVolumeSideLength / 2;
|
||||
int32_t maxPos = g_uVolumeSideLength - 1;
|
||||
|
||||
cout << "Creating sphere 1" << std::endl;
|
||||
createSphereInVolume(volData, 60.0f, 5);
|
||||
cout << "Creating sphere 2" << std::endl;
|
||||
createSphereInVolume(volData, 50.0f, 4);
|
||||
cout << "Creating sphere 3" << std::endl;
|
||||
createSphereInVolume(volData, 40.0f, 3);
|
||||
cout << "Creating sphere 4" << std::endl;
|
||||
createSphereInVolume(volData, 30.0f, 2);
|
||||
cout << "Creating sphere 5" << std::endl;
|
||||
createSphereInVolume(volData, 20.0f, 1);
|
||||
|
||||
cout << "Creating cubes" << std::endl;
|
||||
createCubeInVolume(volData, Vector3DInt32(minPos, minPos, minPos), Vector3DInt32(midPos-1, midPos-1, midPos-1), 0);
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos+1, midPos+1, minPos), Vector3DInt32(maxPos, maxPos, midPos-1), 0);
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos+1, minPos, midPos+1), Vector3DInt32(maxPos, midPos-1, maxPos), 0);
|
||||
createCubeInVolume(volData, Vector3DInt32(minPos, midPos+1, midPos+1), Vector3DInt32(midPos-1, maxPos, maxPos), 0);
|
||||
|
||||
createCubeInVolume(volData, Vector3DInt32(1, midPos-10, midPos-10), Vector3DInt32(maxPos-1, midPos+10, midPos+10), MaterialDensityPair44::getMaxDensity());
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos-10, 1, midPos-10), Vector3DInt32(midPos+10, maxPos-1, midPos+10), MaterialDensityPair44::getMaxDensity());
|
||||
createCubeInVolume(volData, Vector3DInt32(midPos-10, midPos-10 ,1), Vector3DInt32(midPos+10, midPos+10, maxPos-1), MaterialDensityPair44::getMaxDensity());
|
||||
|
||||
QApplication app(argc, argv);
|
||||
|
||||
OpenGLWidget openGLWidget(0);
|
||||
|
||||
|
||||
openGLWidget.show();
|
||||
|
||||
QSharedPointer<QGLShaderProgram> shader(new QGLShaderProgram);
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Vertex, ":/openglexample.vert"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (!shader->addShaderFromSourceFile(QGLShader::Fragment, ":/openglexample.frag"))
|
||||
{
|
||||
std::cerr << shader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
openGLWidget.setShader(shader);
|
||||
|
||||
QTime time;
|
||||
time.start();
|
||||
//openGLWidget.setVolume(&volData);
|
||||
cout << endl << "Time taken = " << time.elapsed() / 1000.0f << "s" << endl << endl;
|
||||
|
||||
const int32_t extractedRegionSize = 32;
|
||||
int meshCounter = 0;
|
||||
|
||||
for (int32_t z = 0; z < volData.getDepth(); z += extractedRegionSize)
|
||||
{
|
||||
for (int32_t y = 0; y < volData.getHeight(); y += extractedRegionSize)
|
||||
{
|
||||
for (int32_t x = 0; x < volData.getWidth(); x += extractedRegionSize)
|
||||
{
|
||||
// Specify the region to extract based on a starting position and the desired region sze.
|
||||
PolyVox::Region regToExtract(x, y, z, x + extractedRegionSize, y + extractedRegionSize, z + extractedRegionSize);
|
||||
|
||||
// If you uncomment this line you will be able to see that the volume is rendered as multiple seperate meshes.
|
||||
//regToExtract.shrink(1);
|
||||
|
||||
// Perform the extraction for this region of the volume
|
||||
auto mesh = extractMarchingCubesMesh(&volData, regToExtract);
|
||||
|
||||
// The returned mesh needs to be decoded to be appropriate for GPU rendering.
|
||||
auto decodedMesh = decodeMesh(mesh);
|
||||
|
||||
// Pass the surface to the OpenGL window. Note that we are also passing an offset in this multi-mesh example. This is because
|
||||
// the surface extractors return a mesh with 'local space' positions to reduce storage requirements and precision problems.
|
||||
openGLWidget.addMesh(decodedMesh, decodedMesh.getOffset());
|
||||
|
||||
meshCounter++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
cout << "Rendering volume as " << meshCounter << " seperate meshes" << endl;
|
||||
|
||||
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
|
||||
return app.exec();
|
||||
}
|
||||
|
||||
@ -1,79 +1,79 @@
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(PagingExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
Perlin.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
Perlin.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(PagingExample ${SRC_FILES} ${COMMON_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(PagingExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(PagingExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET PagingExample PROPERTY FOLDER "Examples")
|
||||
|
||||
configure_file(../common/example.vert example.vert COPYONLY)
|
||||
configure_file(../common/example.frag example.frag COPYONLY)
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS PagingExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(PagingExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
Perlin.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
Perlin.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(PagingExample ${SRC_FILES} ${COMMON_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(PagingExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127")
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(PagingExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET PagingExample PROPERTY FOLDER "Examples")
|
||||
|
||||
configure_file(../common/example.vert example.vert COPYONLY)
|
||||
configure_file(../common/example.frag example.frag COPYONLY)
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS PagingExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
|
||||
@ -1,265 +1,265 @@
|
||||
// Code from http://www.flipcode.com/archives/Perlin_Noise_Class.shtml
|
||||
// This is only in PolyVox for the purpose of the examples. It was not written by
|
||||
// the PolyVox authors and cannot be assumed to be under the same license as PolyVox.
|
||||
|
||||
/* coherent noise function over 1, 2 or 3 dimensions */
|
||||
/* (copyright Ken Perlin) */
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "Perlin.h"
|
||||
|
||||
#define B SAMPLE_SIZE
|
||||
#define BM (SAMPLE_SIZE-1)
|
||||
|
||||
#define N 0x1000
|
||||
#define NP 12 /* 2^N */
|
||||
#define NM 0xfff
|
||||
|
||||
#define s_curve(t) ( t * t * (3.0f - 2.0f * t) )
|
||||
#define lerp(t, a, b) ( a + t * (b - a) )
|
||||
|
||||
#define setup(i,b0,b1,r0,r1)\
|
||||
t = vec[i] + N;\
|
||||
b0 = ((int)t) & BM;\
|
||||
b1 = (b0+1) & BM;\
|
||||
r0 = t - (int)t;\
|
||||
r1 = r0 - 1.0f;
|
||||
|
||||
float Perlin::noise1(float arg)
|
||||
{
|
||||
int bx0, bx1;
|
||||
float rx0, rx1, sx, t, u, v, vec[1];
|
||||
|
||||
vec[0] = arg;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
|
||||
mStart = false;
|
||||
init();
|
||||
}
|
||||
|
||||
setup(0, bx0,bx1, rx0,rx1);
|
||||
|
||||
sx = s_curve(rx0);
|
||||
|
||||
u = rx0 * g1[ p[ bx0 ] ];
|
||||
v = rx1 * g1[ p[ bx1 ] ];
|
||||
|
||||
return lerp(sx, u, v);
|
||||
}
|
||||
|
||||
float Perlin::noise2(float vec[2])
|
||||
{
|
||||
int bx0, bx1, by0, by1, b00, b10, b01, b11;
|
||||
float rx0, rx1, ry0, ry1, *q, sx, sy, a, b, t, u, v;
|
||||
int i, j;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
|
||||
mStart = false;
|
||||
init();
|
||||
}
|
||||
|
||||
setup(0,bx0,bx1,rx0,rx1);
|
||||
setup(1,by0,by1,ry0,ry1);
|
||||
|
||||
i = p[bx0];
|
||||
j = p[bx1];
|
||||
|
||||
b00 = p[i + by0];
|
||||
b10 = p[j + by0];
|
||||
b01 = p[i + by1];
|
||||
b11 = p[j + by1];
|
||||
|
||||
sx = s_curve(rx0);
|
||||
sy = s_curve(ry0);
|
||||
|
||||
#define at2(rx,ry) ( rx * q[0] + ry * q[1] )
|
||||
|
||||
q = g2[b00];
|
||||
u = at2(rx0,ry0);
|
||||
q = g2[b10];
|
||||
v = at2(rx1,ry0);
|
||||
a = lerp(sx, u, v);
|
||||
|
||||
q = g2[b01];
|
||||
u = at2(rx0,ry1);
|
||||
q = g2[b11];
|
||||
v = at2(rx1,ry1);
|
||||
b = lerp(sx, u, v);
|
||||
|
||||
return lerp(sy, a, b);
|
||||
}
|
||||
|
||||
float Perlin::noise3(float vec[3])
|
||||
{
|
||||
int bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
|
||||
float rx0, rx1, ry0, ry1, rz0, rz1, *q, sy, sz, a, b, c, d, t, u, v;
|
||||
int i, j;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
|
||||
mStart = false;
|
||||
init();
|
||||
}
|
||||
|
||||
setup(0, bx0,bx1, rx0,rx1);
|
||||
setup(1, by0,by1, ry0,ry1);
|
||||
setup(2, bz0,bz1, rz0,rz1);
|
||||
|
||||
i = p[ bx0 ];
|
||||
j = p[ bx1 ];
|
||||
|
||||
b00 = p[ i + by0 ];
|
||||
b10 = p[ j + by0 ];
|
||||
b01 = p[ i + by1 ];
|
||||
b11 = p[ j + by1 ];
|
||||
|
||||
t = s_curve(rx0);
|
||||
sy = s_curve(ry0);
|
||||
sz = s_curve(rz0);
|
||||
|
||||
#define at3(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
|
||||
|
||||
q = g3[ b00 + bz0 ] ; u = at3(rx0,ry0,rz0);
|
||||
q = g3[ b10 + bz0 ] ; v = at3(rx1,ry0,rz0);
|
||||
a = lerp(t, u, v);
|
||||
|
||||
q = g3[ b01 + bz0 ] ; u = at3(rx0,ry1,rz0);
|
||||
q = g3[ b11 + bz0 ] ; v = at3(rx1,ry1,rz0);
|
||||
b = lerp(t, u, v);
|
||||
|
||||
c = lerp(sy, a, b);
|
||||
|
||||
q = g3[ b00 + bz1 ] ; u = at3(rx0,ry0,rz1);
|
||||
q = g3[ b10 + bz1 ] ; v = at3(rx1,ry0,rz1);
|
||||
a = lerp(t, u, v);
|
||||
|
||||
q = g3[ b01 + bz1 ] ; u = at3(rx0,ry1,rz1);
|
||||
q = g3[ b11 + bz1 ] ; v = at3(rx1,ry1,rz1);
|
||||
b = lerp(t, u, v);
|
||||
|
||||
d = lerp(sy, a, b);
|
||||
|
||||
return lerp(sz, c, d);
|
||||
}
|
||||
|
||||
void Perlin::normalize2(float v[2])
|
||||
{
|
||||
float s;
|
||||
|
||||
s = (float)sqrt(v[0] * v[0] + v[1] * v[1]);
|
||||
s = 1.0f/s;
|
||||
v[0] = v[0] * s;
|
||||
v[1] = v[1] * s;
|
||||
}
|
||||
|
||||
void Perlin::normalize3(float v[3])
|
||||
{
|
||||
float s;
|
||||
|
||||
s = (float)sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
|
||||
s = 1.0f/s;
|
||||
|
||||
v[0] = v[0] * s;
|
||||
v[1] = v[1] * s;
|
||||
v[2] = v[2] * s;
|
||||
}
|
||||
|
||||
void Perlin::init(void)
|
||||
{
|
||||
int i, j, k;
|
||||
|
||||
for (i = 0 ; i < B ; i++)
|
||||
{
|
||||
p[i] = i;
|
||||
g1[i] = (float)((rand() % (B + B)) - B) / B;
|
||||
for (j = 0 ; j < 2 ; j++)
|
||||
g2[i][j] = (float)((rand() % (B + B)) - B) / B;
|
||||
normalize2(g2[i]);
|
||||
for (j = 0 ; j < 3 ; j++)
|
||||
g3[i][j] = (float)((rand() % (B + B)) - B) / B;
|
||||
normalize3(g3[i]);
|
||||
}
|
||||
|
||||
while (--i)
|
||||
{
|
||||
k = p[i];
|
||||
p[i] = p[j = rand() % B];
|
||||
p[j] = k;
|
||||
}
|
||||
|
||||
for (i = 0 ; i < B + 2 ; i++)
|
||||
{
|
||||
p[B + i] = p[i];
|
||||
g1[B + i] = g1[i];
|
||||
for (j = 0 ; j < 2 ; j++)
|
||||
g2[B + i][j] = g2[i][j];
|
||||
for (j = 0 ; j < 3 ; j++)
|
||||
g3[B + i][j] = g3[i][j];
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
float Perlin::perlin_noise_2D(float vec[2])
|
||||
{
|
||||
int terms = mOctaves;
|
||||
float result = 0.0f;
|
||||
float amp = mAmplitude;
|
||||
|
||||
vec[0]*=mFrequency;
|
||||
vec[1]*=mFrequency;
|
||||
|
||||
for( int i=0; i<terms; i++ )
|
||||
{
|
||||
result += noise2(vec)*amp;
|
||||
vec[0] *= 2.0f;
|
||||
vec[1] *= 2.0f;
|
||||
amp*=0.5f;
|
||||
}
|
||||
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
float Perlin::perlin_noise_3D(float vec[3])
|
||||
{
|
||||
int terms = mOctaves;
|
||||
float result = 0.0f;
|
||||
float amp = mAmplitude;
|
||||
|
||||
vec[0]*=mFrequency;
|
||||
vec[1]*=mFrequency;
|
||||
vec[2]*=mFrequency;
|
||||
|
||||
for( int i=0; i<terms; i++ )
|
||||
{
|
||||
result += noise3(vec)*amp;
|
||||
vec[0] *= 2.0f;
|
||||
vec[1] *= 2.0f;
|
||||
vec[2] *= 2.0f;
|
||||
amp*=0.5f;
|
||||
}
|
||||
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Perlin::Perlin(int octaves,float freq,float amp,int seed)
|
||||
{
|
||||
mOctaves = octaves;
|
||||
mFrequency = freq;
|
||||
mAmplitude = amp;
|
||||
mSeed = seed;
|
||||
mStart = true;
|
||||
}
|
||||
|
||||
// Code from http://www.flipcode.com/archives/Perlin_Noise_Class.shtml
|
||||
// This is only in PolyVox for the purpose of the examples. It was not written by
|
||||
// the PolyVox authors and cannot be assumed to be under the same license as PolyVox.
|
||||
|
||||
/* coherent noise function over 1, 2 or 3 dimensions */
|
||||
/* (copyright Ken Perlin) */
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "Perlin.h"
|
||||
|
||||
#define B SAMPLE_SIZE
|
||||
#define BM (SAMPLE_SIZE-1)
|
||||
|
||||
#define N 0x1000
|
||||
#define NP 12 /* 2^N */
|
||||
#define NM 0xfff
|
||||
|
||||
#define s_curve(t) ( t * t * (3.0f - 2.0f * t) )
|
||||
#define lerp(t, a, b) ( a + t * (b - a) )
|
||||
|
||||
#define setup(i,b0,b1,r0,r1)\
|
||||
t = vec[i] + N;\
|
||||
b0 = ((int)t) & BM;\
|
||||
b1 = (b0+1) & BM;\
|
||||
r0 = t - (int)t;\
|
||||
r1 = r0 - 1.0f;
|
||||
|
||||
float Perlin::noise1(float arg)
|
||||
{
|
||||
int bx0, bx1;
|
||||
float rx0, rx1, sx, t, u, v, vec[1];
|
||||
|
||||
vec[0] = arg;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
|
||||
mStart = false;
|
||||
init();
|
||||
}
|
||||
|
||||
setup(0, bx0,bx1, rx0,rx1);
|
||||
|
||||
sx = s_curve(rx0);
|
||||
|
||||
u = rx0 * g1[ p[ bx0 ] ];
|
||||
v = rx1 * g1[ p[ bx1 ] ];
|
||||
|
||||
return lerp(sx, u, v);
|
||||
}
|
||||
|
||||
float Perlin::noise2(float vec[2])
|
||||
{
|
||||
int bx0, bx1, by0, by1, b00, b10, b01, b11;
|
||||
float rx0, rx1, ry0, ry1, *q, sx, sy, a, b, t, u, v;
|
||||
int i, j;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
|
||||
mStart = false;
|
||||
init();
|
||||
}
|
||||
|
||||
setup(0,bx0,bx1,rx0,rx1);
|
||||
setup(1,by0,by1,ry0,ry1);
|
||||
|
||||
i = p[bx0];
|
||||
j = p[bx1];
|
||||
|
||||
b00 = p[i + by0];
|
||||
b10 = p[j + by0];
|
||||
b01 = p[i + by1];
|
||||
b11 = p[j + by1];
|
||||
|
||||
sx = s_curve(rx0);
|
||||
sy = s_curve(ry0);
|
||||
|
||||
#define at2(rx,ry) ( rx * q[0] + ry * q[1] )
|
||||
|
||||
q = g2[b00];
|
||||
u = at2(rx0,ry0);
|
||||
q = g2[b10];
|
||||
v = at2(rx1,ry0);
|
||||
a = lerp(sx, u, v);
|
||||
|
||||
q = g2[b01];
|
||||
u = at2(rx0,ry1);
|
||||
q = g2[b11];
|
||||
v = at2(rx1,ry1);
|
||||
b = lerp(sx, u, v);
|
||||
|
||||
return lerp(sy, a, b);
|
||||
}
|
||||
|
||||
float Perlin::noise3(float vec[3])
|
||||
{
|
||||
int bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
|
||||
float rx0, rx1, ry0, ry1, rz0, rz1, *q, sy, sz, a, b, c, d, t, u, v;
|
||||
int i, j;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
|
||||
mStart = false;
|
||||
init();
|
||||
}
|
||||
|
||||
setup(0, bx0,bx1, rx0,rx1);
|
||||
setup(1, by0,by1, ry0,ry1);
|
||||
setup(2, bz0,bz1, rz0,rz1);
|
||||
|
||||
i = p[ bx0 ];
|
||||
j = p[ bx1 ];
|
||||
|
||||
b00 = p[ i + by0 ];
|
||||
b10 = p[ j + by0 ];
|
||||
b01 = p[ i + by1 ];
|
||||
b11 = p[ j + by1 ];
|
||||
|
||||
t = s_curve(rx0);
|
||||
sy = s_curve(ry0);
|
||||
sz = s_curve(rz0);
|
||||
|
||||
#define at3(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
|
||||
|
||||
q = g3[ b00 + bz0 ] ; u = at3(rx0,ry0,rz0);
|
||||
q = g3[ b10 + bz0 ] ; v = at3(rx1,ry0,rz0);
|
||||
a = lerp(t, u, v);
|
||||
|
||||
q = g3[ b01 + bz0 ] ; u = at3(rx0,ry1,rz0);
|
||||
q = g3[ b11 + bz0 ] ; v = at3(rx1,ry1,rz0);
|
||||
b = lerp(t, u, v);
|
||||
|
||||
c = lerp(sy, a, b);
|
||||
|
||||
q = g3[ b00 + bz1 ] ; u = at3(rx0,ry0,rz1);
|
||||
q = g3[ b10 + bz1 ] ; v = at3(rx1,ry0,rz1);
|
||||
a = lerp(t, u, v);
|
||||
|
||||
q = g3[ b01 + bz1 ] ; u = at3(rx0,ry1,rz1);
|
||||
q = g3[ b11 + bz1 ] ; v = at3(rx1,ry1,rz1);
|
||||
b = lerp(t, u, v);
|
||||
|
||||
d = lerp(sy, a, b);
|
||||
|
||||
return lerp(sz, c, d);
|
||||
}
|
||||
|
||||
void Perlin::normalize2(float v[2])
|
||||
{
|
||||
float s;
|
||||
|
||||
s = (float)sqrt(v[0] * v[0] + v[1] * v[1]);
|
||||
s = 1.0f/s;
|
||||
v[0] = v[0] * s;
|
||||
v[1] = v[1] * s;
|
||||
}
|
||||
|
||||
void Perlin::normalize3(float v[3])
|
||||
{
|
||||
float s;
|
||||
|
||||
s = (float)sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
|
||||
s = 1.0f/s;
|
||||
|
||||
v[0] = v[0] * s;
|
||||
v[1] = v[1] * s;
|
||||
v[2] = v[2] * s;
|
||||
}
|
||||
|
||||
void Perlin::init(void)
|
||||
{
|
||||
int i, j, k;
|
||||
|
||||
for (i = 0 ; i < B ; i++)
|
||||
{
|
||||
p[i] = i;
|
||||
g1[i] = (float)((rand() % (B + B)) - B) / B;
|
||||
for (j = 0 ; j < 2 ; j++)
|
||||
g2[i][j] = (float)((rand() % (B + B)) - B) / B;
|
||||
normalize2(g2[i]);
|
||||
for (j = 0 ; j < 3 ; j++)
|
||||
g3[i][j] = (float)((rand() % (B + B)) - B) / B;
|
||||
normalize3(g3[i]);
|
||||
}
|
||||
|
||||
while (--i)
|
||||
{
|
||||
k = p[i];
|
||||
p[i] = p[j = rand() % B];
|
||||
p[j] = k;
|
||||
}
|
||||
|
||||
for (i = 0 ; i < B + 2 ; i++)
|
||||
{
|
||||
p[B + i] = p[i];
|
||||
g1[B + i] = g1[i];
|
||||
for (j = 0 ; j < 2 ; j++)
|
||||
g2[B + i][j] = g2[i][j];
|
||||
for (j = 0 ; j < 3 ; j++)
|
||||
g3[B + i][j] = g3[i][j];
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
float Perlin::perlin_noise_2D(float vec[2])
|
||||
{
|
||||
int terms = mOctaves;
|
||||
float result = 0.0f;
|
||||
float amp = mAmplitude;
|
||||
|
||||
vec[0]*=mFrequency;
|
||||
vec[1]*=mFrequency;
|
||||
|
||||
for( int i=0; i<terms; i++ )
|
||||
{
|
||||
result += noise2(vec)*amp;
|
||||
vec[0] *= 2.0f;
|
||||
vec[1] *= 2.0f;
|
||||
amp*=0.5f;
|
||||
}
|
||||
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
float Perlin::perlin_noise_3D(float vec[3])
|
||||
{
|
||||
int terms = mOctaves;
|
||||
float result = 0.0f;
|
||||
float amp = mAmplitude;
|
||||
|
||||
vec[0]*=mFrequency;
|
||||
vec[1]*=mFrequency;
|
||||
vec[2]*=mFrequency;
|
||||
|
||||
for( int i=0; i<terms; i++ )
|
||||
{
|
||||
result += noise3(vec)*amp;
|
||||
vec[0] *= 2.0f;
|
||||
vec[1] *= 2.0f;
|
||||
vec[2] *= 2.0f;
|
||||
amp*=0.5f;
|
||||
}
|
||||
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Perlin::Perlin(int octaves,float freq,float amp,int seed)
|
||||
{
|
||||
mOctaves = octaves;
|
||||
mFrequency = freq;
|
||||
mAmplitude = amp;
|
||||
mSeed = seed;
|
||||
mStart = true;
|
||||
}
|
||||
|
||||
|
||||
@ -1,64 +1,64 @@
|
||||
// Code from http://www.flipcode.com/archives/Perlin_Noise_Class.shtml
|
||||
// This is only in PolyVox for the purpose of the examples. It was not written by
|
||||
// the PolyVox authors and cannot be assumed to be under the same license as PolyVox.
|
||||
|
||||
#ifndef PERLIN_H_
|
||||
|
||||
#define PERLIN_H_
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
|
||||
#define SAMPLE_SIZE 1024
|
||||
|
||||
class Perlin
|
||||
{
|
||||
public:
|
||||
|
||||
Perlin(int octaves,float freq,float amp,int seed);
|
||||
|
||||
|
||||
float Get(float x,float y)
|
||||
{
|
||||
float vec[2];
|
||||
vec[0] = x;
|
||||
vec[1] = y;
|
||||
return perlin_noise_2D(vec);
|
||||
};
|
||||
|
||||
float Get3D(float x,float y,float z)
|
||||
{
|
||||
float vec[3];
|
||||
vec[0] = x;
|
||||
vec[1] = y;
|
||||
vec[2] = z;
|
||||
return perlin_noise_3D(vec);
|
||||
};
|
||||
|
||||
private:
|
||||
void init_perlin(int n,float p);
|
||||
float perlin_noise_2D(float vec[2]);
|
||||
float perlin_noise_3D(float vec[3]);
|
||||
|
||||
float noise1(float arg);
|
||||
float noise2(float vec[2]);
|
||||
float noise3(float vec[3]);
|
||||
void normalize2(float v[2]);
|
||||
void normalize3(float v[3]);
|
||||
void init(void);
|
||||
|
||||
int mOctaves;
|
||||
float mFrequency;
|
||||
float mAmplitude;
|
||||
int mSeed;
|
||||
|
||||
int p[SAMPLE_SIZE + SAMPLE_SIZE + 2];
|
||||
float g3[SAMPLE_SIZE + SAMPLE_SIZE + 2][3];
|
||||
float g2[SAMPLE_SIZE + SAMPLE_SIZE + 2][2];
|
||||
float g1[SAMPLE_SIZE + SAMPLE_SIZE + 2];
|
||||
bool mStart;
|
||||
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
// Code from http://www.flipcode.com/archives/Perlin_Noise_Class.shtml
|
||||
// This is only in PolyVox for the purpose of the examples. It was not written by
|
||||
// the PolyVox authors and cannot be assumed to be under the same license as PolyVox.
|
||||
|
||||
#ifndef PERLIN_H_
|
||||
|
||||
#define PERLIN_H_
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
|
||||
#define SAMPLE_SIZE 1024
|
||||
|
||||
class Perlin
|
||||
{
|
||||
public:
|
||||
|
||||
Perlin(int octaves,float freq,float amp,int seed);
|
||||
|
||||
|
||||
float Get(float x,float y)
|
||||
{
|
||||
float vec[2];
|
||||
vec[0] = x;
|
||||
vec[1] = y;
|
||||
return perlin_noise_2D(vec);
|
||||
};
|
||||
|
||||
float Get3D(float x,float y,float z)
|
||||
{
|
||||
float vec[3];
|
||||
vec[0] = x;
|
||||
vec[1] = y;
|
||||
vec[2] = z;
|
||||
return perlin_noise_3D(vec);
|
||||
};
|
||||
|
||||
private:
|
||||
void init_perlin(int n,float p);
|
||||
float perlin_noise_2D(float vec[2]);
|
||||
float perlin_noise_3D(float vec[3]);
|
||||
|
||||
float noise1(float arg);
|
||||
float noise2(float vec[2]);
|
||||
float noise3(float vec[3]);
|
||||
void normalize2(float v[2]);
|
||||
void normalize3(float v[3]);
|
||||
void init(void);
|
||||
|
||||
int mOctaves;
|
||||
float mFrequency;
|
||||
float mAmplitude;
|
||||
int mSeed;
|
||||
|
||||
int p[SAMPLE_SIZE + SAMPLE_SIZE + 2];
|
||||
float g3[SAMPLE_SIZE + SAMPLE_SIZE + 2][3];
|
||||
float g2[SAMPLE_SIZE + SAMPLE_SIZE + 2][2];
|
||||
float g1[SAMPLE_SIZE + SAMPLE_SIZE + 2];
|
||||
bool mStart;
|
||||
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
@ -1,186 +1,186 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
#include "Perlin.h"
|
||||
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
#include "PolyVoxCore/CubicSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<MaterialDensityPair44>& volData, Vector3DFloat v3dVolCenter, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
//Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
int iRadius = fRadius;
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = v3dVolCenter.getZ() - iRadius; z <= v3dVolCenter.getZ() + iRadius; z++)
|
||||
{
|
||||
for (int y = v3dVolCenter.getY() - iRadius; y <= v3dVolCenter.getY() + iRadius; y++)
|
||||
{
|
||||
for (int x = v3dVolCenter.getX() - iRadius; x <= v3dVolCenter.getX() + iRadius; x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center then we make it solid.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new density value
|
||||
uint8_t uDensity = MaterialDensityPair44::getMaxDensity();
|
||||
|
||||
//Get the old voxel
|
||||
MaterialDensityPair44 voxel = volData.getVoxel(x,y,z);
|
||||
|
||||
//Modify the density
|
||||
voxel.setDensity(uDensity);
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, voxel);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates data using Perlin noise.
|
||||
*/
|
||||
class PerlinNoisePager : public PolyVox::PagedVolume<MaterialDensityPair44>::Pager
|
||||
{
|
||||
public:
|
||||
/// Constructor
|
||||
PerlinNoisePager()
|
||||
:PagedVolume<MaterialDensityPair44>::Pager()
|
||||
{
|
||||
}
|
||||
|
||||
/// Destructor
|
||||
virtual ~PerlinNoisePager() {};
|
||||
|
||||
virtual void pageIn(const PolyVox::Region& region, PagedVolume<MaterialDensityPair44>::Chunk* pChunk)
|
||||
{
|
||||
Perlin perlin(2,2,1,234);
|
||||
|
||||
for(int x = region.getLowerX(); x <= region.getUpperX(); x++)
|
||||
{
|
||||
for(int y = region.getLowerY(); y <= region.getUpperY(); y++)
|
||||
{
|
||||
float perlinVal = perlin.Get(x / static_cast<float>(255-1), y / static_cast<float>(255-1));
|
||||
perlinVal += 1.0f;
|
||||
perlinVal *= 0.5f;
|
||||
perlinVal *= 255;
|
||||
for(int z = region.getLowerZ(); z <= region.getUpperZ(); z++)
|
||||
{
|
||||
MaterialDensityPair44 voxel;
|
||||
if(z < perlinVal)
|
||||
{
|
||||
const int xpos = 50;
|
||||
const int zpos = 100;
|
||||
if((x-xpos)*(x-xpos) + (z-zpos)*(z-zpos) < 200) {
|
||||
// tunnel
|
||||
voxel.setMaterial(0);
|
||||
voxel.setDensity(MaterialDensityPair44::getMinDensity());
|
||||
} else {
|
||||
// solid
|
||||
voxel.setMaterial(245);
|
||||
voxel.setDensity(MaterialDensityPair44::getMaxDensity());
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
voxel.setMaterial(0);
|
||||
voxel.setDensity(MaterialDensityPair44::getMinDensity());
|
||||
}
|
||||
|
||||
// Voxel position within a chunk always start from zero. So if a chunk represents region (4, 8, 12) to (11, 19, 15)
|
||||
// then the valid chunk voxels are from (0, 0, 0) to (7, 11, 3). Hence we subtract the lower corner position of the
|
||||
// region from the volume space position in order to get the chunk space position.
|
||||
pChunk->setVoxelAt(x - region.getLowerX(), y - region.getLowerY(), z - region.getLowerZ(), voxel);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
virtual void pageOut(const PolyVox::Region& region, PagedVolume<MaterialDensityPair44>::Chunk* /*pChunk*/)
|
||||
{
|
||||
std::cout << "warning unloading region: " << region.getLowerCorner() << " -> " << region.getUpperCorner() << std::endl;
|
||||
}
|
||||
};
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
PerlinNoisePager* pager = new PerlinNoisePager();
|
||||
PagedVolume<MaterialDensityPair44> volData(PolyVox::Region::MaxRegion, pager, 64);
|
||||
volData.setMemoryUsageLimit(8 * 1024 * 1024); // 8Mb
|
||||
|
||||
//createSphereInVolume(volData, 30);
|
||||
//createPerlinTerrain(volData);
|
||||
//createPerlinVolumeSlow(volData);
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
PolyVox::Region reg(Vector3DInt32(-255,0,0), Vector3DInt32(255,255,255));
|
||||
std::cout << "Prefetching region: " << reg.getLowerCorner() << " -> " << reg.getUpperCorner() << std::endl;
|
||||
volData.prefetch(reg);
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
PolyVox::Region reg2(Vector3DInt32(0,0,0), Vector3DInt32(255,255,255));
|
||||
std::cout << "Flushing region: " << reg2.getLowerCorner() << " -> " << reg2.getUpperCorner() << std::endl;
|
||||
volData.flush(reg2);
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
std::cout << "Flushing entire volume" << std::endl;
|
||||
volData.flushAll();
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
|
||||
//Extract the surface
|
||||
auto mesh = extractCubicMesh(&volData, reg2);
|
||||
std::cout << "#vertices: " << mesh.getNoOfVertices() << std::endl;
|
||||
|
||||
auto decodedMesh = decodeMesh(mesh);
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
openGLWidget.addMesh(decodedMesh);
|
||||
|
||||
openGLWidget.setViewableRegion(reg2);
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
}
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
#include "Perlin.h"
|
||||
|
||||
#include "PolyVoxCore/MaterialDensityPair.h"
|
||||
#include "PolyVoxCore/CubicSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<MaterialDensityPair44>& volData, Vector3DFloat v3dVolCenter, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
//Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
int iRadius = fRadius;
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = v3dVolCenter.getZ() - iRadius; z <= v3dVolCenter.getZ() + iRadius; z++)
|
||||
{
|
||||
for (int y = v3dVolCenter.getY() - iRadius; y <= v3dVolCenter.getY() + iRadius; y++)
|
||||
{
|
||||
for (int x = v3dVolCenter.getX() - iRadius; x <= v3dVolCenter.getX() + iRadius; x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
//If the current voxel is less than 'radius' units from the center then we make it solid.
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new density value
|
||||
uint8_t uDensity = MaterialDensityPair44::getMaxDensity();
|
||||
|
||||
//Get the old voxel
|
||||
MaterialDensityPair44 voxel = volData.getVoxel(x,y,z);
|
||||
|
||||
//Modify the density
|
||||
voxel.setDensity(uDensity);
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, voxel);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates data using Perlin noise.
|
||||
*/
|
||||
class PerlinNoisePager : public PolyVox::PagedVolume<MaterialDensityPair44>::Pager
|
||||
{
|
||||
public:
|
||||
/// Constructor
|
||||
PerlinNoisePager()
|
||||
:PagedVolume<MaterialDensityPair44>::Pager()
|
||||
{
|
||||
}
|
||||
|
||||
/// Destructor
|
||||
virtual ~PerlinNoisePager() {};
|
||||
|
||||
virtual void pageIn(const PolyVox::Region& region, PagedVolume<MaterialDensityPair44>::Chunk* pChunk)
|
||||
{
|
||||
Perlin perlin(2,2,1,234);
|
||||
|
||||
for(int x = region.getLowerX(); x <= region.getUpperX(); x++)
|
||||
{
|
||||
for(int y = region.getLowerY(); y <= region.getUpperY(); y++)
|
||||
{
|
||||
float perlinVal = perlin.Get(x / static_cast<float>(255-1), y / static_cast<float>(255-1));
|
||||
perlinVal += 1.0f;
|
||||
perlinVal *= 0.5f;
|
||||
perlinVal *= 255;
|
||||
for(int z = region.getLowerZ(); z <= region.getUpperZ(); z++)
|
||||
{
|
||||
MaterialDensityPair44 voxel;
|
||||
if(z < perlinVal)
|
||||
{
|
||||
const int xpos = 50;
|
||||
const int zpos = 100;
|
||||
if((x-xpos)*(x-xpos) + (z-zpos)*(z-zpos) < 200) {
|
||||
// tunnel
|
||||
voxel.setMaterial(0);
|
||||
voxel.setDensity(MaterialDensityPair44::getMinDensity());
|
||||
} else {
|
||||
// solid
|
||||
voxel.setMaterial(245);
|
||||
voxel.setDensity(MaterialDensityPair44::getMaxDensity());
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
voxel.setMaterial(0);
|
||||
voxel.setDensity(MaterialDensityPair44::getMinDensity());
|
||||
}
|
||||
|
||||
// Voxel position within a chunk always start from zero. So if a chunk represents region (4, 8, 12) to (11, 19, 15)
|
||||
// then the valid chunk voxels are from (0, 0, 0) to (7, 11, 3). Hence we subtract the lower corner position of the
|
||||
// region from the volume space position in order to get the chunk space position.
|
||||
pChunk->setVoxelAt(x - region.getLowerX(), y - region.getLowerY(), z - region.getLowerZ(), voxel);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
virtual void pageOut(const PolyVox::Region& region, PagedVolume<MaterialDensityPair44>::Chunk* /*pChunk*/)
|
||||
{
|
||||
std::cout << "warning unloading region: " << region.getLowerCorner() << " -> " << region.getUpperCorner() << std::endl;
|
||||
}
|
||||
};
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
PerlinNoisePager* pager = new PerlinNoisePager();
|
||||
PagedVolume<MaterialDensityPair44> volData(PolyVox::Region::MaxRegion, pager, 64);
|
||||
volData.setMemoryUsageLimit(8 * 1024 * 1024); // 8Mb
|
||||
|
||||
//createSphereInVolume(volData, 30);
|
||||
//createPerlinTerrain(volData);
|
||||
//createPerlinVolumeSlow(volData);
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
PolyVox::Region reg(Vector3DInt32(-255,0,0), Vector3DInt32(255,255,255));
|
||||
std::cout << "Prefetching region: " << reg.getLowerCorner() << " -> " << reg.getUpperCorner() << std::endl;
|
||||
volData.prefetch(reg);
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
PolyVox::Region reg2(Vector3DInt32(0,0,0), Vector3DInt32(255,255,255));
|
||||
std::cout << "Flushing region: " << reg2.getLowerCorner() << " -> " << reg2.getUpperCorner() << std::endl;
|
||||
volData.flush(reg2);
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
std::cout << "Flushing entire volume" << std::endl;
|
||||
volData.flushAll();
|
||||
std::cout << "Memory usage: " << (volData.calculateSizeInBytes()/1024.0/1024.0) << "MB" << std::endl;
|
||||
//std::cout << "Compression ratio: 1 to " << (1.0/(volData.calculateCompressionRatio())) << std::endl;
|
||||
|
||||
//Extract the surface
|
||||
auto mesh = extractCubicMesh(&volData, reg2);
|
||||
std::cout << "#vertices: " << mesh.getNoOfVertices() << std::endl;
|
||||
|
||||
auto decodedMesh = decodeMesh(mesh);
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
openGLWidget.addMesh(decodedMesh);
|
||||
|
||||
openGLWidget.setViewableRegion(reg2);
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
}
|
||||
|
||||
@ -1,24 +1,24 @@
|
||||
# Copyright (c) 2010-2013 Matt Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
PROJECT(PythonExample)
|
||||
|
||||
configure_file(PythonExample.py PythonExample.py COPYONLY)
|
||||
# Copyright (c) 2010-2013 Matt Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
PROJECT(PythonExample)
|
||||
|
||||
configure_file(PythonExample.py PythonExample.py COPYONLY)
|
||||
|
||||
@ -1,77 +1,77 @@
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(SmoothLODExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(SmoothLODExample ${SRC_FILES} ${COMMON_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(SmoothLODExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127") #All warnings
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(SmoothLODExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET SmoothLODExample PROPERTY FOLDER "Examples")
|
||||
|
||||
configure_file(../common/example.vert example.vert COPYONLY)
|
||||
configure_file(../common/example.frag example.frag COPYONLY)
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS SmoothLODExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
# Copyright (c) 2010-2012 David Williams
|
||||
#
|
||||
# This software is provided 'as-is', without any express or implied
|
||||
# warranty. In no event will the authors be held liable for any damages
|
||||
# arising from the use of this software.
|
||||
#
|
||||
# Permission is granted to anyone to use this software for any purpose,
|
||||
# including commercial applications, and to alter it and redistribute it
|
||||
# freely, subject to the following restrictions:
|
||||
#
|
||||
# 1. The origin of this software must not be misrepresented; you must not
|
||||
# claim that you wrote the original software. If you use this software
|
||||
# in a product, an acknowledgment in the product documentation would be
|
||||
# appreciated but is not required.
|
||||
#
|
||||
# 2. Altered source versions must be plainly marked as such, and must not be
|
||||
# misrepresented as being the original software.
|
||||
#
|
||||
# 3. This notice may not be removed or altered from any source
|
||||
# distribution.
|
||||
|
||||
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
|
||||
|
||||
PROJECT(SmoothLODExample)
|
||||
|
||||
#Projects source files
|
||||
SET(SRC_FILES
|
||||
main.cpp
|
||||
../common/OpenGLWidget.cpp
|
||||
)
|
||||
|
||||
#Projects headers files
|
||||
SET(INC_FILES
|
||||
OpenGLWidget.h
|
||||
)
|
||||
|
||||
add_definitions(-DGLEW_STATIC)
|
||||
|
||||
FIND_PACKAGE(OpenGL REQUIRED)
|
||||
|
||||
#Tell CMake the paths for OpenGL and for PolyVox (which is just relative to our current location)
|
||||
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR} ${PolyVoxCore_BINARY_DIR}/include ${PolyVoxCore_SOURCE_DIR}/include ${GLEW_SOURCE_DIR})
|
||||
LINK_DIRECTORIES(${PolyVoxCore_BINARY_DIR})
|
||||
|
||||
#This will include the shader files inside the compiled binary
|
||||
QT4_ADD_RESOURCES(COMMON_RESOURCES_RCC ../common/example.qrc)
|
||||
|
||||
# Put the resources in a seperate folder in Visual Studio
|
||||
SOURCE_GROUP("Resource Files" FILES ../common/example.qrc ${COMMON_RESOURCES_RCC})
|
||||
|
||||
#Build
|
||||
ADD_EXECUTABLE(SmoothLODExample ${SRC_FILES} ${COMMON_RESOURCES_RCC})
|
||||
IF(MSVC)
|
||||
SET_TARGET_PROPERTIES(SmoothLODExample PROPERTIES COMPILE_FLAGS "/W4 /wd4127") #All warnings
|
||||
ENDIF(MSVC)
|
||||
TARGET_LINK_LIBRARIES(SmoothLODExample glew ${QT_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} PolyVoxCore)
|
||||
SET_PROPERTY(TARGET SmoothLODExample PROPERTY FOLDER "Examples")
|
||||
|
||||
configure_file(../common/example.vert example.vert COPYONLY)
|
||||
configure_file(../common/example.frag example.frag COPYONLY)
|
||||
|
||||
#Install - Only install the example in Windows
|
||||
IF(WIN32)
|
||||
INSTALL(TARGETS SmoothLODExample
|
||||
RUNTIME DESTINATION Examples/OpenGL/bin
|
||||
LIBRARY DESTINATION Examples/OpenGL/lib
|
||||
ARCHIVE DESTINATION Examples/OpenGL/lib
|
||||
COMPONENT example
|
||||
)
|
||||
|
||||
#.dlls should be installed in shared builds.
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../release/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Release)
|
||||
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxCore.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
#INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/../../debug/PolyVoxUtil.dll DESTINATION Examples/OpenGL/bin CONFIGURATIONS Debug)
|
||||
ENDIF(WIN32)
|
||||
|
||||
@ -1,110 +1,110 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include "PolyVoxCore/Density.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/RawVolume.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
#include "PolyVoxCore/VolumeResampler.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<uint8_t>& volData, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new density value
|
||||
uint8_t uDensity = std::numeric_limits<uint8_t>::max();
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, uDensity);
|
||||
}
|
||||
|
||||
//144 in the middle, (144 - 32) at the edges. Threshold of 128 is between these
|
||||
//volData.setVoxelAt(x, y, z, 144 - fDistToCenter);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
//Create an empty volume and then place a sphere in it
|
||||
PagedVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
createSphereInVolume(volData, 28);
|
||||
|
||||
//Smooth the data - should reimplement this using LowPassFilter
|
||||
//smoothRegion<PagedVolume, Density8>(volData, volData.getEnclosingRegion());
|
||||
//smoothRegion<PagedVolume, Density8>(volData, volData.getEnclosingRegion());
|
||||
//smoothRegion<PagedVolume, Density8>(volData, volData.getEnclosingRegion());
|
||||
|
||||
RawVolume<uint8_t> volDataLowLOD(PolyVox::Region(Vector3DInt32(0,0,0), Vector3DInt32(15, 31, 31)));
|
||||
|
||||
VolumeResampler< PagedVolume<uint8_t>, RawVolume<uint8_t> > volumeResampler(&volData, PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(31, 63, 63)), &volDataLowLOD, volDataLowLOD.getEnclosingRegion());
|
||||
volumeResampler.execute();
|
||||
|
||||
//Extract the surface
|
||||
auto meshLowLOD = extractMarchingCubesMesh(&volDataLowLOD, volDataLowLOD.getEnclosingRegion());
|
||||
// The returned mesh needs to be decoded to be appropriate for GPU rendering.
|
||||
auto decodedMeshLowLOD = decodeMesh(meshLowLOD);
|
||||
|
||||
//Extract the surface
|
||||
auto meshHighLOD = extractMarchingCubesMesh(&volData, PolyVox::Region(Vector3DInt32(30, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
// The returned mesh needs to be decoded to be appropriate for GPU rendering.
|
||||
auto decodedMeshHighLOD = decodeMesh(meshHighLOD);
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
openGLWidget.addMesh(decodedMeshHighLOD, Vector3DInt32(30, 0, 0));
|
||||
openGLWidget.addMesh(decodedMeshLowLOD, Vector3DInt32(0, 0, 0), 63.0f / 31.0f);
|
||||
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
}
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include "PolyVoxCore/Density.h"
|
||||
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
#include "PolyVoxCore/RawVolume.h"
|
||||
#include "PolyVoxCore/PagedVolume.h"
|
||||
#include "PolyVoxCore/VolumeResampler.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
//Use the PolyVox namespace
|
||||
using namespace PolyVox;
|
||||
|
||||
void createSphereInVolume(PagedVolume<uint8_t>& volData, float fRadius)
|
||||
{
|
||||
//This vector hold the position of the center of the volume
|
||||
Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
|
||||
|
||||
//This three-level for loop iterates over every voxel in the volume
|
||||
for (int z = 0; z < volData.getDepth(); z++)
|
||||
{
|
||||
for (int y = 0; y < volData.getHeight(); y++)
|
||||
{
|
||||
for (int x = 0; x < volData.getWidth(); x++)
|
||||
{
|
||||
//Store our current position as a vector...
|
||||
Vector3DFloat v3dCurrentPos(x,y,z);
|
||||
//And compute how far the current position is from the center of the volume
|
||||
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
|
||||
|
||||
if(fDistToCenter <= fRadius)
|
||||
{
|
||||
//Our new density value
|
||||
uint8_t uDensity = std::numeric_limits<uint8_t>::max();
|
||||
|
||||
//Wrte the voxel value into the volume
|
||||
volData.setVoxelAt(x, y, z, uDensity);
|
||||
}
|
||||
|
||||
//144 in the middle, (144 - 32) at the edges. Threshold of 128 is between these
|
||||
//volData.setVoxelAt(x, y, z, 144 - fDistToCenter);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
//Create and show the Qt OpenGL window
|
||||
QApplication app(argc, argv);
|
||||
OpenGLWidget openGLWidget(0);
|
||||
openGLWidget.show();
|
||||
|
||||
//Create an empty volume and then place a sphere in it
|
||||
PagedVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
createSphereInVolume(volData, 28);
|
||||
|
||||
//Smooth the data - should reimplement this using LowPassFilter
|
||||
//smoothRegion<PagedVolume, Density8>(volData, volData.getEnclosingRegion());
|
||||
//smoothRegion<PagedVolume, Density8>(volData, volData.getEnclosingRegion());
|
||||
//smoothRegion<PagedVolume, Density8>(volData, volData.getEnclosingRegion());
|
||||
|
||||
RawVolume<uint8_t> volDataLowLOD(PolyVox::Region(Vector3DInt32(0,0,0), Vector3DInt32(15, 31, 31)));
|
||||
|
||||
VolumeResampler< PagedVolume<uint8_t>, RawVolume<uint8_t> > volumeResampler(&volData, PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(31, 63, 63)), &volDataLowLOD, volDataLowLOD.getEnclosingRegion());
|
||||
volumeResampler.execute();
|
||||
|
||||
//Extract the surface
|
||||
auto meshLowLOD = extractMarchingCubesMesh(&volDataLowLOD, volDataLowLOD.getEnclosingRegion());
|
||||
// The returned mesh needs to be decoded to be appropriate for GPU rendering.
|
||||
auto decodedMeshLowLOD = decodeMesh(meshLowLOD);
|
||||
|
||||
//Extract the surface
|
||||
auto meshHighLOD = extractMarchingCubesMesh(&volData, PolyVox::Region(Vector3DInt32(30, 0, 0), Vector3DInt32(63, 63, 63)));
|
||||
// The returned mesh needs to be decoded to be appropriate for GPU rendering.
|
||||
auto decodedMeshHighLOD = decodeMesh(meshHighLOD);
|
||||
|
||||
//Pass the surface to the OpenGL window
|
||||
openGLWidget.addMesh(decodedMeshHighLOD, Vector3DInt32(30, 0, 0));
|
||||
openGLWidget.addMesh(decodedMeshLowLOD, Vector3DInt32(0, 0, 0), 63.0f / 31.0f);
|
||||
|
||||
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
|
||||
|
||||
//Run the message pump.
|
||||
return app.exec();
|
||||
}
|
||||
|
||||
@ -1,196 +1,196 @@
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include <QMouseEvent>
|
||||
#include <QMatrix4x4>
|
||||
#include <QCoreApplication>
|
||||
//#include <QtMath>
|
||||
|
||||
using namespace PolyVox;
|
||||
using namespace std;
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Public functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
OpenGLWidget::OpenGLWidget(QWidget *parent)
|
||||
:QGLWidget(parent)
|
||||
,m_viewableRegion(PolyVox::Region(0, 0, 0, 255, 255, 255))
|
||||
,m_xRotation(0)
|
||||
,m_yRotation(0)
|
||||
{
|
||||
}
|
||||
|
||||
void OpenGLWidget::setShader(QSharedPointer<QGLShaderProgram> shader)
|
||||
{
|
||||
mShader = shader;
|
||||
}
|
||||
|
||||
void OpenGLWidget::setViewableRegion(PolyVox::Region viewableRegion)
|
||||
{
|
||||
m_viewableRegion = viewableRegion;
|
||||
|
||||
// The user has specifed a new viewable region
|
||||
// so we need to regenerate our camera matrix.
|
||||
setupWorldToCameraMatrix();
|
||||
}
|
||||
|
||||
void OpenGLWidget::mousePressEvent(QMouseEvent* event)
|
||||
{
|
||||
// Initialise these variables which will be used when the mouse actually moves.
|
||||
m_CurrentMousePos = event->pos();
|
||||
m_LastFrameMousePos = m_CurrentMousePos;
|
||||
}
|
||||
|
||||
void OpenGLWidget::mouseMoveEvent(QMouseEvent* event)
|
||||
{
|
||||
// Update the x and y rotations based on the mouse movement.
|
||||
m_CurrentMousePos = event->pos();
|
||||
QPoint diff = m_CurrentMousePos - m_LastFrameMousePos;
|
||||
m_xRotation += diff.x();
|
||||
m_yRotation += diff.y();
|
||||
m_LastFrameMousePos = m_CurrentMousePos;
|
||||
|
||||
// The camera rotation has changed so we need to regenerate the matrix.
|
||||
setupWorldToCameraMatrix();
|
||||
|
||||
// Re-render.
|
||||
update();
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Protected functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
void OpenGLWidget::initializeGL()
|
||||
{
|
||||
GLenum err = glewInit();
|
||||
if (GLEW_OK != err)
|
||||
{
|
||||
/* Problem: glewInit failed, something is seriously wrong. */
|
||||
std::cout << "GLEW Error: " << glewGetErrorString(err) << std::endl;
|
||||
}
|
||||
|
||||
//Print out some information about the OpenGL implementation.
|
||||
std::cout << "OpenGL Implementation Details:" << std::endl;
|
||||
if(glGetString(GL_VENDOR))
|
||||
std::cout << "\tGL_VENDOR: " << glGetString(GL_VENDOR) << std::endl;
|
||||
if(glGetString(GL_RENDERER))
|
||||
std::cout << "\tGL_RENDERER: " << glGetString(GL_RENDERER) << std::endl;
|
||||
if(glGetString(GL_VERSION))
|
||||
std::cout << "\tGL_VERSION: " << glGetString(GL_VERSION) << std::endl;
|
||||
if(glGetString(GL_SHADING_LANGUAGE_VERSION))
|
||||
std::cout << "\tGL_SHADING_LANGUAGE_VERSION: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
|
||||
|
||||
//Set up the clear colour
|
||||
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
|
||||
glClearDepth(1.0f);
|
||||
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
glDepthMask(GL_TRUE);
|
||||
glDepthFunc(GL_LEQUAL);
|
||||
glDepthRange(0.0, 1.0);
|
||||
|
||||
mShader = QSharedPointer<QGLShaderProgram>(new QGLShaderProgram);
|
||||
|
||||
// This is basically a simple fallback vertex shader which does the most basic rendering possible.
|
||||
// PolyVox examples are able to provide their own shaders to demonstrate certain effects if desired.
|
||||
if (!mShader->addShaderFromSourceFile(QGLShader::Vertex, ":/example.vert"))
|
||||
{
|
||||
std::cerr << mShader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// This is basically a simple fallback fragment shader which does the most basic rendering possible.
|
||||
// PolyVox examples are able to provide their own shaders to demonstrate certain effects if desired.
|
||||
if (!mShader->addShaderFromSourceFile(QGLShader::Fragment, ":/example.frag"))
|
||||
{
|
||||
std::cerr << mShader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// Bind the position semantic - this is defined in the vertex shader above.
|
||||
mShader->bindAttributeLocation("position", 0);
|
||||
|
||||
// Bind the other semantics. Note that these don't actually exist in our example shader above! However, other
|
||||
// example shaders may choose to provide them and having the binding code here does not seem to cause any problems.
|
||||
mShader->bindAttributeLocation("normal", 1);
|
||||
mShader->bindAttributeLocation("material", 2);
|
||||
|
||||
if (!mShader->link())
|
||||
{
|
||||
std::cerr << mShader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// Initial setup of camera.
|
||||
setupWorldToCameraMatrix();
|
||||
}
|
||||
|
||||
void OpenGLWidget::resizeGL(int w, int h)
|
||||
{
|
||||
//Setup the viewport
|
||||
glViewport(0, 0, w, h);
|
||||
|
||||
auto aspectRatio = w / (float)h;
|
||||
float zNear = 1.0;
|
||||
float zFar = 1000.0;
|
||||
|
||||
cameraToClipMatrix.setToIdentity();
|
||||
cameraToClipMatrix.frustum(-aspectRatio, aspectRatio, -1, 1, zNear, zFar);
|
||||
}
|
||||
|
||||
void OpenGLWidget::paintGL()
|
||||
{
|
||||
//Clear the screen
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// Our example framework only uses a single shader for the scene (for all meshes).
|
||||
mShader->bind();
|
||||
|
||||
// These two matrices are constant for all meshes.
|
||||
mShader->setUniformValue("worldToCameraMatrix", worldToCameraMatrix);
|
||||
mShader->setUniformValue("cameraToClipMatrix", cameraToClipMatrix);
|
||||
|
||||
// Iterate over each mesh which the user added to our list, and render it.
|
||||
for (OpenGLMeshData meshData : mMeshData)
|
||||
{
|
||||
//Set up the model matrrix based on provided translation and scale.
|
||||
QMatrix4x4 modelToWorldMatrix;
|
||||
modelToWorldMatrix.translate(meshData.translation);
|
||||
modelToWorldMatrix.scale(meshData.scale);
|
||||
mShader->setUniformValue("modelToWorldMatrix", modelToWorldMatrix);
|
||||
|
||||
// Bind the vertex array for the current mesh
|
||||
glBindVertexArray(meshData.vertexArrayObject);
|
||||
// Draw the mesh
|
||||
glDrawElements(GL_TRIANGLES, meshData.noOfIndices, meshData.indexType, 0);
|
||||
// Unbind the vertex array.
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
// We're done with the shader for this frame.
|
||||
mShader->release();
|
||||
|
||||
// Check for errors.
|
||||
GLenum errCode = glGetError();
|
||||
if(errCode != GL_NO_ERROR)
|
||||
{
|
||||
std::cerr << "OpenGL Error: " << errCode << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Private functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
void OpenGLWidget::setupWorldToCameraMatrix()
|
||||
{
|
||||
QVector3D lowerCorner(m_viewableRegion.getLowerX(), m_viewableRegion.getLowerY(), m_viewableRegion.getLowerZ());
|
||||
QVector3D upperCorner(m_viewableRegion.getUpperX(), m_viewableRegion.getUpperY(), m_viewableRegion.getUpperZ());
|
||||
|
||||
QVector3D centerPoint = (lowerCorner + upperCorner) * 0.5;
|
||||
float fDiagonalLength = (upperCorner - lowerCorner).length();
|
||||
|
||||
worldToCameraMatrix.setToIdentity();
|
||||
worldToCameraMatrix.translate(0, 0, -fDiagonalLength / 2.0f); //Move the camera back by the required amount
|
||||
worldToCameraMatrix.rotate(m_xRotation, 0, 1, 0); //rotate around y-axis
|
||||
worldToCameraMatrix.rotate(m_yRotation, 1, 0, 0); //rotate around x-axis
|
||||
worldToCameraMatrix.translate(-centerPoint); //centre the model on the origin
|
||||
#include "OpenGLWidget.h"
|
||||
|
||||
#include <QMouseEvent>
|
||||
#include <QMatrix4x4>
|
||||
#include <QCoreApplication>
|
||||
//#include <QtMath>
|
||||
|
||||
using namespace PolyVox;
|
||||
using namespace std;
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Public functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
OpenGLWidget::OpenGLWidget(QWidget *parent)
|
||||
:QGLWidget(parent)
|
||||
,m_viewableRegion(PolyVox::Region(0, 0, 0, 255, 255, 255))
|
||||
,m_xRotation(0)
|
||||
,m_yRotation(0)
|
||||
{
|
||||
}
|
||||
|
||||
void OpenGLWidget::setShader(QSharedPointer<QGLShaderProgram> shader)
|
||||
{
|
||||
mShader = shader;
|
||||
}
|
||||
|
||||
void OpenGLWidget::setViewableRegion(PolyVox::Region viewableRegion)
|
||||
{
|
||||
m_viewableRegion = viewableRegion;
|
||||
|
||||
// The user has specifed a new viewable region
|
||||
// so we need to regenerate our camera matrix.
|
||||
setupWorldToCameraMatrix();
|
||||
}
|
||||
|
||||
void OpenGLWidget::mousePressEvent(QMouseEvent* event)
|
||||
{
|
||||
// Initialise these variables which will be used when the mouse actually moves.
|
||||
m_CurrentMousePos = event->pos();
|
||||
m_LastFrameMousePos = m_CurrentMousePos;
|
||||
}
|
||||
|
||||
void OpenGLWidget::mouseMoveEvent(QMouseEvent* event)
|
||||
{
|
||||
// Update the x and y rotations based on the mouse movement.
|
||||
m_CurrentMousePos = event->pos();
|
||||
QPoint diff = m_CurrentMousePos - m_LastFrameMousePos;
|
||||
m_xRotation += diff.x();
|
||||
m_yRotation += diff.y();
|
||||
m_LastFrameMousePos = m_CurrentMousePos;
|
||||
|
||||
// The camera rotation has changed so we need to regenerate the matrix.
|
||||
setupWorldToCameraMatrix();
|
||||
|
||||
// Re-render.
|
||||
update();
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Protected functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
void OpenGLWidget::initializeGL()
|
||||
{
|
||||
GLenum err = glewInit();
|
||||
if (GLEW_OK != err)
|
||||
{
|
||||
/* Problem: glewInit failed, something is seriously wrong. */
|
||||
std::cout << "GLEW Error: " << glewGetErrorString(err) << std::endl;
|
||||
}
|
||||
|
||||
//Print out some information about the OpenGL implementation.
|
||||
std::cout << "OpenGL Implementation Details:" << std::endl;
|
||||
if(glGetString(GL_VENDOR))
|
||||
std::cout << "\tGL_VENDOR: " << glGetString(GL_VENDOR) << std::endl;
|
||||
if(glGetString(GL_RENDERER))
|
||||
std::cout << "\tGL_RENDERER: " << glGetString(GL_RENDERER) << std::endl;
|
||||
if(glGetString(GL_VERSION))
|
||||
std::cout << "\tGL_VERSION: " << glGetString(GL_VERSION) << std::endl;
|
||||
if(glGetString(GL_SHADING_LANGUAGE_VERSION))
|
||||
std::cout << "\tGL_SHADING_LANGUAGE_VERSION: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
|
||||
|
||||
//Set up the clear colour
|
||||
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
|
||||
glClearDepth(1.0f);
|
||||
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
glDepthMask(GL_TRUE);
|
||||
glDepthFunc(GL_LEQUAL);
|
||||
glDepthRange(0.0, 1.0);
|
||||
|
||||
mShader = QSharedPointer<QGLShaderProgram>(new QGLShaderProgram);
|
||||
|
||||
// This is basically a simple fallback vertex shader which does the most basic rendering possible.
|
||||
// PolyVox examples are able to provide their own shaders to demonstrate certain effects if desired.
|
||||
if (!mShader->addShaderFromSourceFile(QGLShader::Vertex, ":/example.vert"))
|
||||
{
|
||||
std::cerr << mShader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// This is basically a simple fallback fragment shader which does the most basic rendering possible.
|
||||
// PolyVox examples are able to provide their own shaders to demonstrate certain effects if desired.
|
||||
if (!mShader->addShaderFromSourceFile(QGLShader::Fragment, ":/example.frag"))
|
||||
{
|
||||
std::cerr << mShader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// Bind the position semantic - this is defined in the vertex shader above.
|
||||
mShader->bindAttributeLocation("position", 0);
|
||||
|
||||
// Bind the other semantics. Note that these don't actually exist in our example shader above! However, other
|
||||
// example shaders may choose to provide them and having the binding code here does not seem to cause any problems.
|
||||
mShader->bindAttributeLocation("normal", 1);
|
||||
mShader->bindAttributeLocation("material", 2);
|
||||
|
||||
if (!mShader->link())
|
||||
{
|
||||
std::cerr << mShader->log().toStdString() << std::endl;
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// Initial setup of camera.
|
||||
setupWorldToCameraMatrix();
|
||||
}
|
||||
|
||||
void OpenGLWidget::resizeGL(int w, int h)
|
||||
{
|
||||
//Setup the viewport
|
||||
glViewport(0, 0, w, h);
|
||||
|
||||
auto aspectRatio = w / (float)h;
|
||||
float zNear = 1.0;
|
||||
float zFar = 1000.0;
|
||||
|
||||
cameraToClipMatrix.setToIdentity();
|
||||
cameraToClipMatrix.frustum(-aspectRatio, aspectRatio, -1, 1, zNear, zFar);
|
||||
}
|
||||
|
||||
void OpenGLWidget::paintGL()
|
||||
{
|
||||
//Clear the screen
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// Our example framework only uses a single shader for the scene (for all meshes).
|
||||
mShader->bind();
|
||||
|
||||
// These two matrices are constant for all meshes.
|
||||
mShader->setUniformValue("worldToCameraMatrix", worldToCameraMatrix);
|
||||
mShader->setUniformValue("cameraToClipMatrix", cameraToClipMatrix);
|
||||
|
||||
// Iterate over each mesh which the user added to our list, and render it.
|
||||
for (OpenGLMeshData meshData : mMeshData)
|
||||
{
|
||||
//Set up the model matrrix based on provided translation and scale.
|
||||
QMatrix4x4 modelToWorldMatrix;
|
||||
modelToWorldMatrix.translate(meshData.translation);
|
||||
modelToWorldMatrix.scale(meshData.scale);
|
||||
mShader->setUniformValue("modelToWorldMatrix", modelToWorldMatrix);
|
||||
|
||||
// Bind the vertex array for the current mesh
|
||||
glBindVertexArray(meshData.vertexArrayObject);
|
||||
// Draw the mesh
|
||||
glDrawElements(GL_TRIANGLES, meshData.noOfIndices, meshData.indexType, 0);
|
||||
// Unbind the vertex array.
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
// We're done with the shader for this frame.
|
||||
mShader->release();
|
||||
|
||||
// Check for errors.
|
||||
GLenum errCode = glGetError();
|
||||
if(errCode != GL_NO_ERROR)
|
||||
{
|
||||
std::cerr << "OpenGL Error: " << errCode << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Private functions
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
void OpenGLWidget::setupWorldToCameraMatrix()
|
||||
{
|
||||
QVector3D lowerCorner(m_viewableRegion.getLowerX(), m_viewableRegion.getLowerY(), m_viewableRegion.getLowerZ());
|
||||
QVector3D upperCorner(m_viewableRegion.getUpperX(), m_viewableRegion.getUpperY(), m_viewableRegion.getUpperZ());
|
||||
|
||||
QVector3D centerPoint = (lowerCorner + upperCorner) * 0.5;
|
||||
float fDiagonalLength = (upperCorner - lowerCorner).length();
|
||||
|
||||
worldToCameraMatrix.setToIdentity();
|
||||
worldToCameraMatrix.translate(0, 0, -fDiagonalLength / 2.0f); //Move the camera back by the required amount
|
||||
worldToCameraMatrix.rotate(m_xRotation, 0, 1, 0); //rotate around y-axis
|
||||
worldToCameraMatrix.rotate(m_yRotation, 1, 0, 0); //rotate around x-axis
|
||||
worldToCameraMatrix.translate(-centerPoint); //centre the model on the origin
|
||||
}
|
||||
@ -1,160 +1,160 @@
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef __BasicExample_OpenGLWidget_H__
|
||||
#define __BasicExample_OpenGLWidget_H__
|
||||
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
|
||||
#include "glew/glew.h"
|
||||
|
||||
#include <QGLWidget>
|
||||
#include <QGLShaderProgram>
|
||||
|
||||
// This structure holds all the data required
|
||||
// to render one of our meshes through OpenGL.
|
||||
struct OpenGLMeshData
|
||||
{
|
||||
GLuint noOfIndices;
|
||||
GLenum indexType;
|
||||
GLuint indexBuffer;
|
||||
GLuint vertexBuffer;
|
||||
GLuint vertexArrayObject;
|
||||
QVector3D translation;
|
||||
float scale;
|
||||
};
|
||||
|
||||
// Our OpenGLWidget is used by all the examples to render the extracted meshes. It is
|
||||
// fairly specific to our needs (you probably won't want to use it in your own project)
|
||||
// but should provide a useful illustration of how PolyVox meshes can be rendered.
|
||||
class OpenGLWidget : public QGLWidget
|
||||
{
|
||||
public:
|
||||
// Constructor
|
||||
OpenGLWidget(QWidget *parent);
|
||||
|
||||
// Convert a PolyVox mesh to OpenGL index/vertex buffers. Inlined because it's templatised.
|
||||
template <typename MeshType>
|
||||
void addMesh(const MeshType& surfaceMesh, const PolyVox::Vector3DInt32& translation = PolyVox::Vector3DInt32(0, 0, 0), float scale = 1.0f)
|
||||
{
|
||||
// Convienient access to the vertices and indices
|
||||
const auto& vecIndices = surfaceMesh.getIndices();
|
||||
const auto& vecVertices = surfaceMesh.getVertices();
|
||||
|
||||
// This struct holds the OpenGL properties (buffer handles, etc) which will be used
|
||||
// to render our mesh. We copy the data from the PolyVox mesh into this structure.
|
||||
OpenGLMeshData meshData;
|
||||
|
||||
// Create the VAO for the mesh
|
||||
glGenVertexArrays(1, &(meshData.vertexArrayObject));
|
||||
glBindVertexArray(meshData.vertexArrayObject);
|
||||
|
||||
// The GL_ARRAY_BUFFER will contain the list of vertex positions
|
||||
glGenBuffers(1, &(meshData.vertexBuffer));
|
||||
glBindBuffer(GL_ARRAY_BUFFER, meshData.vertexBuffer);
|
||||
glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(typename MeshType::VertexType), vecVertices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// and GL_ELEMENT_ARRAY_BUFFER will contain the indices
|
||||
glGenBuffers(1, &(meshData.indexBuffer));
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, meshData.indexBuffer);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(typename MeshType::IndexType), vecIndices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// Every surface extractor outputs valid positions for the vertices, so tell OpenGL how these are laid out
|
||||
glEnableVertexAttribArray(0); // Attrib '0' is the vertex positions
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(typename MeshType::VertexType), (GLvoid*)(offsetof(typename MeshType::VertexType, position))); //take the first 3 floats from every sizeof(decltype(vecVertices)::value_type)
|
||||
|
||||
// Some surface extractors also generate normals, so tell OpenGL how these are laid out. If a surface extractor
|
||||
// does not generate normals then nonsense values are written into the buffer here and sghould be ignored by the
|
||||
// shader. This is mostly just to simplify this example code - in a real application you will know whether your
|
||||
// chosen surface extractor generates normals and can skip uploading them if not.
|
||||
glEnableVertexAttribArray(1); // Attrib '1' is the vertex normals.
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(typename MeshType::VertexType), (GLvoid*)(offsetof(typename MeshType::VertexType, normal)));
|
||||
|
||||
// Finally a surface extractor will probably output additional data. This is highly application dependant. For this example code
|
||||
// we're just uploading it as a set of bytes which we can read individually, but real code will want to do something specialised here.
|
||||
glEnableVertexAttribArray(2); //We're talking about shader attribute '2'
|
||||
GLint size = (std::min)(sizeof(typename MeshType::VertexType::DataType), size_t(4)); // Can't upload more that 4 components (vec4 is GLSL's biggest type)
|
||||
glVertexAttribIPointer(2, size, GL_UNSIGNED_BYTE, sizeof(typename MeshType::VertexType), (GLvoid*)(offsetof(typename MeshType::VertexType, data)));
|
||||
|
||||
// We're done uploading and can now unbind.
|
||||
glBindVertexArray(0);
|
||||
|
||||
// A few additional properties can be copied across for use during rendering.
|
||||
meshData.noOfIndices = vecIndices.size();
|
||||
meshData.translation = QVector3D(translation.getX(), translation.getY(), translation.getZ());
|
||||
meshData.scale = scale;
|
||||
|
||||
// Set 16 or 32-bit index buffer size.
|
||||
meshData.indexType = sizeof(typename MeshType::IndexType) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
|
||||
|
||||
// Now add the mesh to the list of meshes to render.
|
||||
addMeshData(meshData);
|
||||
}
|
||||
|
||||
void addMeshData(OpenGLMeshData meshData)
|
||||
{
|
||||
mMeshData.push_back(meshData);
|
||||
}
|
||||
|
||||
// For our purposes we use a single shader for the whole volume, and
|
||||
// this example framework is only meant to show a single volume at a time
|
||||
void setShader(QSharedPointer<QGLShaderProgram> shader);
|
||||
|
||||
// The viewable region can be adjusted so that this example framework can be used for different volume sizes.
|
||||
void setViewableRegion(PolyVox::Region viewableRegion);
|
||||
|
||||
// Mouse handling
|
||||
void mouseMoveEvent(QMouseEvent* event);
|
||||
void mousePressEvent(QMouseEvent* event);
|
||||
|
||||
protected:
|
||||
|
||||
// Qt OpenGL functions
|
||||
void initializeGL();
|
||||
void resizeGL(int w, int h);
|
||||
void paintGL();
|
||||
|
||||
private:
|
||||
|
||||
void setupWorldToCameraMatrix();
|
||||
|
||||
// Index/vertex buffer data
|
||||
std::vector<OpenGLMeshData> mMeshData;
|
||||
|
||||
QSharedPointer<QGLShaderProgram> mShader;
|
||||
|
||||
// Matrices
|
||||
QMatrix4x4 worldToCameraMatrix;
|
||||
QMatrix4x4 cameraToClipMatrix;
|
||||
|
||||
// Mouse data
|
||||
QPoint m_LastFrameMousePos;
|
||||
QPoint m_CurrentMousePos;
|
||||
|
||||
// Camera setup
|
||||
PolyVox::Region m_viewableRegion;
|
||||
int m_xRotation;
|
||||
int m_yRotation;
|
||||
};
|
||||
|
||||
#endif //__BasicExample_OpenGLWidget_H__
|
||||
/*******************************************************************************
|
||||
Copyright (c) 2005-2009 David Williams
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef __BasicExample_OpenGLWidget_H__
|
||||
#define __BasicExample_OpenGLWidget_H__
|
||||
|
||||
#include "PolyVoxCore/Mesh.h"
|
||||
|
||||
#include "glew/glew.h"
|
||||
|
||||
#include <QGLWidget>
|
||||
#include <QGLShaderProgram>
|
||||
|
||||
// This structure holds all the data required
|
||||
// to render one of our meshes through OpenGL.
|
||||
struct OpenGLMeshData
|
||||
{
|
||||
GLuint noOfIndices;
|
||||
GLenum indexType;
|
||||
GLuint indexBuffer;
|
||||
GLuint vertexBuffer;
|
||||
GLuint vertexArrayObject;
|
||||
QVector3D translation;
|
||||
float scale;
|
||||
};
|
||||
|
||||
// Our OpenGLWidget is used by all the examples to render the extracted meshes. It is
|
||||
// fairly specific to our needs (you probably won't want to use it in your own project)
|
||||
// but should provide a useful illustration of how PolyVox meshes can be rendered.
|
||||
class OpenGLWidget : public QGLWidget
|
||||
{
|
||||
public:
|
||||
// Constructor
|
||||
OpenGLWidget(QWidget *parent);
|
||||
|
||||
// Convert a PolyVox mesh to OpenGL index/vertex buffers. Inlined because it's templatised.
|
||||
template <typename MeshType>
|
||||
void addMesh(const MeshType& surfaceMesh, const PolyVox::Vector3DInt32& translation = PolyVox::Vector3DInt32(0, 0, 0), float scale = 1.0f)
|
||||
{
|
||||
// Convienient access to the vertices and indices
|
||||
const auto& vecIndices = surfaceMesh.getIndices();
|
||||
const auto& vecVertices = surfaceMesh.getVertices();
|
||||
|
||||
// This struct holds the OpenGL properties (buffer handles, etc) which will be used
|
||||
// to render our mesh. We copy the data from the PolyVox mesh into this structure.
|
||||
OpenGLMeshData meshData;
|
||||
|
||||
// Create the VAO for the mesh
|
||||
glGenVertexArrays(1, &(meshData.vertexArrayObject));
|
||||
glBindVertexArray(meshData.vertexArrayObject);
|
||||
|
||||
// The GL_ARRAY_BUFFER will contain the list of vertex positions
|
||||
glGenBuffers(1, &(meshData.vertexBuffer));
|
||||
glBindBuffer(GL_ARRAY_BUFFER, meshData.vertexBuffer);
|
||||
glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(typename MeshType::VertexType), vecVertices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// and GL_ELEMENT_ARRAY_BUFFER will contain the indices
|
||||
glGenBuffers(1, &(meshData.indexBuffer));
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, meshData.indexBuffer);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(typename MeshType::IndexType), vecIndices.data(), GL_STATIC_DRAW);
|
||||
|
||||
// Every surface extractor outputs valid positions for the vertices, so tell OpenGL how these are laid out
|
||||
glEnableVertexAttribArray(0); // Attrib '0' is the vertex positions
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(typename MeshType::VertexType), (GLvoid*)(offsetof(typename MeshType::VertexType, position))); //take the first 3 floats from every sizeof(decltype(vecVertices)::value_type)
|
||||
|
||||
// Some surface extractors also generate normals, so tell OpenGL how these are laid out. If a surface extractor
|
||||
// does not generate normals then nonsense values are written into the buffer here and sghould be ignored by the
|
||||
// shader. This is mostly just to simplify this example code - in a real application you will know whether your
|
||||
// chosen surface extractor generates normals and can skip uploading them if not.
|
||||
glEnableVertexAttribArray(1); // Attrib '1' is the vertex normals.
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(typename MeshType::VertexType), (GLvoid*)(offsetof(typename MeshType::VertexType, normal)));
|
||||
|
||||
// Finally a surface extractor will probably output additional data. This is highly application dependant. For this example code
|
||||
// we're just uploading it as a set of bytes which we can read individually, but real code will want to do something specialised here.
|
||||
glEnableVertexAttribArray(2); //We're talking about shader attribute '2'
|
||||
GLint size = (std::min)(sizeof(typename MeshType::VertexType::DataType), size_t(4)); // Can't upload more that 4 components (vec4 is GLSL's biggest type)
|
||||
glVertexAttribIPointer(2, size, GL_UNSIGNED_BYTE, sizeof(typename MeshType::VertexType), (GLvoid*)(offsetof(typename MeshType::VertexType, data)));
|
||||
|
||||
// We're done uploading and can now unbind.
|
||||
glBindVertexArray(0);
|
||||
|
||||
// A few additional properties can be copied across for use during rendering.
|
||||
meshData.noOfIndices = vecIndices.size();
|
||||
meshData.translation = QVector3D(translation.getX(), translation.getY(), translation.getZ());
|
||||
meshData.scale = scale;
|
||||
|
||||
// Set 16 or 32-bit index buffer size.
|
||||
meshData.indexType = sizeof(typename MeshType::IndexType) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
|
||||
|
||||
// Now add the mesh to the list of meshes to render.
|
||||
addMeshData(meshData);
|
||||
}
|
||||
|
||||
void addMeshData(OpenGLMeshData meshData)
|
||||
{
|
||||
mMeshData.push_back(meshData);
|
||||
}
|
||||
|
||||
// For our purposes we use a single shader for the whole volume, and
|
||||
// this example framework is only meant to show a single volume at a time
|
||||
void setShader(QSharedPointer<QGLShaderProgram> shader);
|
||||
|
||||
// The viewable region can be adjusted so that this example framework can be used for different volume sizes.
|
||||
void setViewableRegion(PolyVox::Region viewableRegion);
|
||||
|
||||
// Mouse handling
|
||||
void mouseMoveEvent(QMouseEvent* event);
|
||||
void mousePressEvent(QMouseEvent* event);
|
||||
|
||||
protected:
|
||||
|
||||
// Qt OpenGL functions
|
||||
void initializeGL();
|
||||
void resizeGL(int w, int h);
|
||||
void paintGL();
|
||||
|
||||
private:
|
||||
|
||||
void setupWorldToCameraMatrix();
|
||||
|
||||
// Index/vertex buffer data
|
||||
std::vector<OpenGLMeshData> mMeshData;
|
||||
|
||||
QSharedPointer<QGLShaderProgram> mShader;
|
||||
|
||||
// Matrices
|
||||
QMatrix4x4 worldToCameraMatrix;
|
||||
QMatrix4x4 cameraToClipMatrix;
|
||||
|
||||
// Mouse data
|
||||
QPoint m_LastFrameMousePos;
|
||||
QPoint m_CurrentMousePos;
|
||||
|
||||
// Camera setup
|
||||
PolyVox::Region m_viewableRegion;
|
||||
int m_xRotation;
|
||||
int m_yRotation;
|
||||
};
|
||||
|
||||
#endif //__BasicExample_OpenGLWidget_H__
|
||||
|
||||
@ -1,73 +1,73 @@
|
||||
The OpenGL Extension Wrangler Library
|
||||
Copyright (C) 2002-2007, Milan Ikits <milan ikits[]ieee org>
|
||||
Copyright (C) 2002-2007, Marcelo E. Magallon <mmagallo[]debian org>
|
||||
Copyright (C) 2002, Lev Povalahev
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
* The name of the author may be used to endorse or promote products
|
||||
derived from this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
||||
Mesa 3-D graphics library
|
||||
Version: 7.0
|
||||
|
||||
Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||||
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
|
||||
Copyright (c) 2007 The Khronos Group Inc.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and/or associated documentation files (the
|
||||
"Materials"), to deal in the Materials without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Materials, and to
|
||||
permit persons to whom the Materials are furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Materials.
|
||||
|
||||
THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
||||
The OpenGL Extension Wrangler Library
|
||||
Copyright (C) 2002-2007, Milan Ikits <milan ikits[]ieee org>
|
||||
Copyright (C) 2002-2007, Marcelo E. Magallon <mmagallo[]debian org>
|
||||
Copyright (C) 2002, Lev Povalahev
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
* The name of the author may be used to endorse or promote products
|
||||
derived from this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
||||
Mesa 3-D graphics library
|
||||
Version: 7.0
|
||||
|
||||
Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||||
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
|
||||
Copyright (c) 2007 The Khronos Group Inc.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and/or associated documentation files (the
|
||||
"Materials"), to deal in the Materials without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Materials, and to
|
||||
permit persons to whom the Materials are furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included
|
||||
in all copies or substantial portions of the Materials.
|
||||
|
||||
THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user