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Work on Qt version of example.

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This commit is contained in:
David Williams 2009-03-28 09:36:09 +00:00
parent ee5e33612c
commit 00f19e05a4
2 changed files with 46 additions and 42 deletions
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18
examples/OpenGL/OpenGLWidget.cpp
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@ -16,8 +16,14 @@ OpenGLWidget::OpenGLWidget(QWidget *parent)
void OpenGLWidget::setVolume(PolyVox::Volume<PolyVox::uint8>* volData) void OpenGLWidget::setVolume(PolyVox::Volume<PolyVox::uint8>* volData)
{ {
//First we free anything from the previous volume (if there was one).
m_mapOpenGLSurfacePatches.clear();
m_mapIndexedSurfacePatches.clear();
m_volData = volData; m_volData = volData;
//If we have any volume data then generate the new surface patches.
if(m_volData != 0)
{
//Our volume is broken down into cuboid regions, and we create one mesh for each region. //Our volume is broken down into cuboid regions, and we create one mesh for each region.
//This three-level for loop iterates over each region. //This three-level for loop iterates over each region.
for(uint16 uRegionZ = 0; uRegionZ < g_uVolumeSideLengthInRegions; ++uRegionZ) for(uint16 uRegionZ = 0; uRegionZ < g_uVolumeSideLengthInRegions; ++uRegionZ)
@ -48,16 +54,13 @@ void OpenGLWidget::setVolume(PolyVox::Volume<PolyVox::uint8>* volData)
Vector3DUint8 v3dRegPos(uRegionX,uRegionY,uRegionZ); Vector3DUint8 v3dRegPos(uRegionX,uRegionY,uRegionZ);
if(g_bUseOpenGLVertexBufferObjects) if(m_bUseOpenGLVertexBufferObjects)
{ {
//g_openGLSurfacePatches[uRegionX][uRegionY][uRegionZ] = BuildOpenGLSurfacePatch(*ispCurrent);
OpenGLSurfacePatch openGLSurfacePatch = BuildOpenGLSurfacePatch(*ispCurrent); OpenGLSurfacePatch openGLSurfacePatch = BuildOpenGLSurfacePatch(*ispCurrent);
m_mapOpenGLSurfacePatches.insert(make_pair(v3dRegPos, openGLSurfacePatch)); m_mapOpenGLSurfacePatches.insert(make_pair(v3dRegPos, openGLSurfacePatch));
} }
else else
{ {
//g_indexedSurfacePatches[uRegionX][uRegionY][uRegionZ] = ispCurrent;
//m_volIndexedSurfacePatches->setVoxelAt(uRegionX,uRegionY,uRegionZ,ispCurrent);
m_mapIndexedSurfacePatches.insert(make_pair(v3dRegPos, ispCurrent)); m_mapIndexedSurfacePatches.insert(make_pair(v3dRegPos, ispCurrent));
} }
//delete ispCurrent; //delete ispCurrent;
@ -65,11 +68,12 @@ void OpenGLWidget::setVolume(PolyVox::Volume<PolyVox::uint8>* volData)
} }
} }
} }
}
void OpenGLWidget::initializeGL() void OpenGLWidget::initializeGL()
{ {
g_bUseOpenGLVertexBufferObjects = true; m_bUseOpenGLVertexBufferObjects = true;
if(g_bUseOpenGLVertexBufferObjects) if(m_bUseOpenGLVertexBufferObjects)
{ {
#ifdef WIN32 #ifdef WIN32
//If we are on Windows we will need GLEW to access recent OpenGL functionality //If we are on Windows we will need GLEW to access recent OpenGL functionality
@ -134,7 +138,7 @@ void OpenGLWidget::paintGL()
for(uint16 uRegionX = 0; uRegionX < g_uVolumeSideLengthInRegions; ++uRegionX) for(uint16 uRegionX = 0; uRegionX < g_uVolumeSideLengthInRegions; ++uRegionX)
{ {
Vector3DUint8 v3dRegPos(uRegionX,uRegionY,uRegionZ); Vector3DUint8 v3dRegPos(uRegionX,uRegionY,uRegionZ);
if(g_bUseOpenGLVertexBufferObjects) if(m_bUseOpenGLVertexBufferObjects)
{ {
renderRegionVertexBufferObject(m_mapOpenGLSurfacePatches[v3dRegPos]); renderRegionVertexBufferObject(m_mapOpenGLSurfacePatches[v3dRegPos]);
} }

2
examples/OpenGL/OpenGLWidget.h
View File

@ -37,7 +37,7 @@ class OpenGLWidget : public QGLWidget
private: private:
bool g_bUseOpenGLVertexBufferObjects; bool m_bUseOpenGLVertexBufferObjects;
//Creates a volume 128x128x128 //Creates a volume 128x128x128
PolyVox::Volume<PolyVox::uint8>* m_volData; PolyVox::Volume<PolyVox::uint8>* m_volData;