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Work on Qt version of example.

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This commit is contained in:
David Williams 2009-03-28 00:27:35 +00:00
parent dc39415eb8
commit ee5e33612c
2 changed files with 61 additions and 50 deletions
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84
examples/OpenGL/OpenGLWidget.cpp
View File

@ -8,62 +8,15 @@ using namespace std;
OpenGLWidget::OpenGLWidget(QWidget *parent) OpenGLWidget::OpenGLWidget(QWidget *parent)
:QGLWidget(parent) :QGLWidget(parent)
{ {
g_bUseOpenGLVertexBufferObjects = true;
m_volData = new Volume<uint8>(g_uVolumeSideLength);
//Make our volume contain a sphere in the center.
uint16 minPos = 0;
uint16 midPos = m_volData->getSideLength() / 2;
uint16 maxPos = m_volData->getSideLength() - 1;
createCubeInVolume(*m_volData, Vector3DUint16(minPos, minPos, minPos), Vector3DUint16(maxPos, maxPos, maxPos), 0);
createSphereInVolume(*m_volData, 50.0f, 5);
createSphereInVolume(*m_volData, 40.0f, 4);
createSphereInVolume(*m_volData, 30.0f, 3);
createSphereInVolume(*m_volData, 20.0f, 2);
createSphereInVolume(*m_volData, 10.0f, 1);
createCubeInVolume(*m_volData, Vector3DUint16(minPos, minPos, minPos), Vector3DUint16(midPos-1, midPos-1, midPos-1), 0);
createCubeInVolume(*m_volData, Vector3DUint16(midPos+1, midPos+1, minPos), Vector3DUint16(maxPos, maxPos, midPos-1), 0);
createCubeInVolume(*m_volData, Vector3DUint16(midPos+1, minPos, midPos+1), Vector3DUint16(maxPos, midPos-1, maxPos), 0);
createCubeInVolume(*m_volData, Vector3DUint16(minPos, midPos+1, midPos+1), Vector3DUint16(midPos-1, maxPos, maxPos), 0);
} }
void OpenGLWidget::setVolume(PolyVox::Volume<PolyVox::uint8>* volData) void OpenGLWidget::setVolume(PolyVox::Volume<PolyVox::uint8>* volData)
{ {
} m_volData = volData;
void OpenGLWidget::initializeGL()
{
if(g_bUseOpenGLVertexBufferObjects)
{
#ifdef WIN32
//If we are on Windows we will need GLEW to access recent OpenGL functionality
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
cout << "Error: " << glewGetErrorString(err) << endl;
}
#endif
}
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
glClearDepth(1.0f); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glEnable ( GL_COLOR_MATERIAL );
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glEnable(GL_LIGHTING);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_LIGHT0);
glShadeModel(GL_SMOOTH);
//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.
@ -113,6 +66,37 @@ void OpenGLWidget::initializeGL()
} }
} }
void OpenGLWidget::initializeGL()
{
g_bUseOpenGLVertexBufferObjects = true;
if(g_bUseOpenGLVertexBufferObjects)
{
#ifdef WIN32
//If we are on Windows we will need GLEW to access recent OpenGL functionality
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
cout << "Error: " << glewGetErrorString(err) << endl;
}
#endif
}
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
glClearDepth(1.0f); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glEnable ( GL_COLOR_MATERIAL );
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glEnable(GL_LIGHTING);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_LIGHT0);
glShadeModel(GL_SMOOTH);
}
void OpenGLWidget::resizeGL(int w, int h) void OpenGLWidget::resizeGL(int w, int h)
{ {
glViewport ( 0, 0, w, h ); glViewport ( 0, 0, w, h );

27
examples/OpenGL/main.cpp
View File

@ -13,14 +13,41 @@
#include <QApplication> #include <QApplication>
//Some namespaces we need
using namespace std;
using namespace PolyVox;
using namespace std;
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
Volume<uint8> volData(g_uVolumeSideLength);
//Make our volume contain a sphere in the center.
uint16 minPos = 0;
uint16 midPos = volData.getSideLength() / 2;
uint16 maxPos = volData.getSideLength() - 1;
createCubeInVolume(volData, Vector3DUint16(minPos, minPos, minPos), Vector3DUint16(maxPos, maxPos, maxPos), 0);
createSphereInVolume(volData, 50.0f, 5);
createSphereInVolume(volData, 40.0f, 4);
createSphereInVolume(volData, 30.0f, 3);
createSphereInVolume(volData, 20.0f, 2);
createSphereInVolume(volData, 10.0f, 1);
createCubeInVolume(volData, Vector3DUint16(minPos, minPos, minPos), Vector3DUint16(midPos-1, midPos-1, midPos-1), 0);
createCubeInVolume(volData, Vector3DUint16(midPos+1, midPos+1, minPos), Vector3DUint16(maxPos, maxPos, midPos-1), 0);
createCubeInVolume(volData, Vector3DUint16(midPos+1, minPos, midPos+1), Vector3DUint16(maxPos, midPos-1, maxPos), 0);
createCubeInVolume(volData, Vector3DUint16(minPos, midPos+1, midPos+1), Vector3DUint16(midPos-1, maxPos, maxPos), 0);
QApplication app(argc, argv); QApplication app(argc, argv);
OpenGLWidget openGLWidget(0); OpenGLWidget openGLWidget(0);
openGLWidget.show(); openGLWidget.show();
openGLWidget.setVolume(&volData);
return app.exec(); return app.exec();
} }