Normalized line endings
This commit is contained in:
David Williams
@ -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>
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||||
#include <stdio.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "Perlin.h"
|
||||
|
||||
#define B SAMPLE_SIZE
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||||
#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)\
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||||
t = vec[i] + N;\
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b0 = ((int)t) & BM;\
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||||
b1 = (b0+1) & BM;\
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||||
r0 = t - (int)t;\
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||||
r1 = r0 - 1.0f;
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||||
|
||||
float Perlin::noise1(float arg)
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||||
{
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||||
int bx0, bx1;
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float rx0, rx1, sx, t, u, v, vec[1];
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||||
|
||||
vec[0] = arg;
|
||||
|
||||
if (mStart)
|
||||
{
|
||||
srand(mSeed);
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||||
mStart = false;
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||||
init();
|
||||
}
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||||
|
||||
setup(0, bx0,bx1, rx0,rx1);
|
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||||
sx = s_curve(rx0);
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||||
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u = rx0 * g1[ p[ bx0 ] ];
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v = rx1 * g1[ p[ bx1 ] ];
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||||
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return lerp(sx, u, v);
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}
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||||
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||||
float Perlin::noise2(float vec[2])
|
||||
{
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||||
int bx0, bx1, by0, by1, b00, b10, b01, b11;
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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);
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||||
setup(1,by0,by1,ry0,ry1);
|
||||
|
||||
i = p[bx0];
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||||
j = p[bx1];
|
||||
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||||
b00 = p[i + by0];
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||||
b10 = p[j + by0];
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b01 = p[i + by1];
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||||
b11 = p[j + by1];
|
||||
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||||
sx = s_curve(rx0);
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sy = s_curve(ry0);
|
||||
|
||||
#define at2(rx,ry) ( rx * q[0] + ry * q[1] )
|
||||
|
||||
q = g2[b00];
|
||||
u = at2(rx0,ry0);
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||||
q = g2[b10];
|
||||
v = at2(rx1,ry0);
|
||||
a = lerp(sx, u, v);
|
||||
|
||||
q = g2[b01];
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||||
u = at2(rx0,ry1);
|
||||
q = g2[b11];
|
||||
v = at2(rx1,ry1);
|
||||
b = lerp(sx, u, v);
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||||
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||||
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);
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||||
sz = s_curve(rz0);
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||||
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||||
#define at3(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
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||||
|
||||
q = g3[ b00 + bz0 ] ; u = at3(rx0,ry0,rz0);
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||||
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();
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user