//Create an empty volume and then place a sphere in it
Volume<MaterialDensityPair44> volData(64, 64, 64);
createSphereInVolume(volData, 30);
//Extract the surface
SurfaceMesh<PositionMaterialNormal> mesh;
CubicSurfaceExtractorWithNormals<MaterialDensityPair44> surfaceExtractor(&volData, volData.getEnclosingRegion(), &mesh);
surfaceExtractor.execute();
Ogre::ManualObject* PVWorld = mSceneMgr->createManualObject("PVWorld");
uint32_t noVertices = mesh.getNoOfVertices();
uint32_t noIndices = mesh.getNoOfIndices();
PVWorld->estimateVertexCount(noVertices);
PVWorld->estimateIndexCount(noIndices);
PVWorld->begin("ColouredCubicVoxel", Ogre::RenderOperation::OT_TRIANGLE_LIST);
// vertices
const std::vector<PolyVox::PositionMaterialNormal>& vVertices = mesh.getVertices();
for (unsigned int i=0; i<noVertices; i++) {
const PolyVox::Vector3DFloat& pos = vVertices[i].getPosition();
PVWorld->position(pos.getX(), pos.getY(), pos.getZ());
}
// indices
const std::vector<uint32_t>& vIndices = mesh.getIndices();
for (unsigned int i=0; i<noIndices; i++) {
PVWorld->index( vIndices[i] );
}
PVWorld->end();
PVWorld->convertToMesh(Ogre::String("Sphere"));
Ogre::Entity* lEntity = mSceneMgr->createEntity(Ogre::String("Sphere"));
Ogre::SceneNode* node = mSceneMgr->getRootSceneNode()->createChildSceneNode();
node->attachObject(lEntity);
any idea what is wrong? Also I thought it is very interesting that at least for me, using cubicsurfaceextratorwithnormals is identical in speed to using cubicsurfaceextractor. One oddity is that the fps drops in half at some viewing angles of the sphere... I imagine just because of more faces, but still it is sad to drop from 900 to 450fps. I kind of expected it to be much faster than this, but I dunno I guess.
