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OpenGLExample is once again rendered as multiple separate mehses (but using the example framework this time).

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This commit is contained in:
David Williams 2014-05-25 12:28:45 +02:00
parent f78aad8abd
commit eb39f0bb4c
1 changed files with 29 additions and 6 deletions
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35
examples/OpenGL/main.cpp
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@ -107,7 +107,6 @@ int main(int argc, char *argv[])
void main()
{
//material = vec2(
worldPosition = modelToWorldMatrix * position;
worldNormal = normal;
outMaterial = ivec2(material.x, material.y);
@ -173,14 +172,38 @@ int main(int argc, char *argv[])
//openGLWidget.setVolume(&volData);
cout << endl << "Time taken = " << time.elapsed() / 1000.0f << "s" << endl << endl;
auto mesh = extractMarchingCubesMesh(&volData, volData.getEnclosingRegion());
const int32_t extractedRegionSize = 32;
const int32_t gapBetweenRegions = 1; // Set this to '1'
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.
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);
//Pass the surface to the OpenGL window
openGLWidget.addMesh(mesh);
meshCounter++;
}
}
}
cout << "Rendering volume as " << meshCounter << " seperate meshes" << endl;
//Pass the surface to the OpenGL window
openGLWidget.addMesh(mesh);
//openGLWidget.addMesh(mesh2);
openGLWidget.setViewableRegion(volData.getEnclosingRegion());
//return 0;
return app.exec();
}