void OpenGLWidget::setSurfaceMeshToRender(const PolyVox::SurfaceMesh<PositionMaterialNormal>& surfaceMesh)
{
if((surfaceMesh.getNoOfIndices() == 0) || (surfaceMesh.getNoOfVertices() == 0))
{
//We don't have a valid mesh
return;
}
//Convienient access to the vertices and indices
const vector<uint32_t>& vecIndices = surfaceMesh.getIndices();
const vector<PositionMaterialNormal>& vecVertices = surfaceMesh.getVertices();
//Build an OpenGL index buffer
glGenBuffers(1, &indexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
const GLvoid* pIndices = static_cast<const GLvoid*>(&(vecIndices[0]));
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(uint32_t), pIndices, GL_STATIC_DRAW);
//Build an OpenGL vertex buffer
glGenBuffers(1, &vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
const GLvoid* pVertices = static_cast<const GLvoid*>(&(vecVertices[0]));
glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(PositionMaterialNormal), pVertices, GL_STATIC_DRAW);
m_uBeginIndex = 0;
m_uEndIndex = vecIndices.size();
noOfIndices = surfaceMesh.getNoOfIndices();
}
void ofxPolyvox::polyvoxToOfMesh(const PolyVox::SurfaceMesh<PositionMaterialNormal>& surfaceMesh, ofMesh& polyvxToOfMesh, bool setColor){
//Convienient access to the vertices and indices
const vector<uint32_t>& vecIndices = surfaceMesh.getIndices();
const vector<PositionMaterialNormal>& vecVertices = surfaceMesh.getVertices();//surfaceMesh.getRawVertexData();
ofIndexType ofVecIndices;
const void* pIndices = static_cast<const void*>(&(vecIndices[0]));
int* indices = (int*)pIndices;
vector<int> indx;
for (int i = 0; i < surfaceMesh.getNoOfIndices(); i++ ){
indx.push_back(indices[i]);
//cout << "indices:" << indices[i] << endl;
polyvxToOfMesh.addIndex(indx[i]);
}
ofLog(OF_LOG_NOTICE, "ofMesh: number of indices is %d", polyvxToOfMesh.getNumIndices());
ofVec3f ofVecVertices;
for (int i = 0; i < surfaceMesh.getNoOfVertices(); i++ ){
PositionMaterialNormal vert0 = vecVertices[i];
ofVecVertices = ofVec3f(vert0.getPosition().getX(),vert0.getPosition().getY(),vert0.getPosition().getZ());
polyvxToOfMesh.addVertex(ofVecVertices);
}
ofLog(OF_LOG_NOTICE, "ofMesh: number of vertices is %d", polyvxToOfMesh.getNumVertices());
ofVec3f ofVecNormals;
for (int i = 0; i < surfaceMesh.getNoOfVertices(); i++ ){
PositionMaterialNormal vert0 = vecVertices[i];
ofVecNormals = ofVec3f(vert0.getNormal().getX(),vert0.getNormal().getY(),vert0.getNormal().getZ());
polyvxToOfMesh.addNormal(ofVecNormals);
}
ofLog(OF_LOG_NOTICE, "ofMesh: number of normals is %d", polyvxToOfMesh.getNumNormals());
if(setColor){
for (int i = 0; i < surfaceMesh.getNoOfVertices(); i++ ){
PositionMaterialNormal vert0 = vecVertices[i];
uint8_t material = static_cast<uint8_t>(vert0.getMaterial() + 0.5);
//cout << "material:" << int(material) << endl;
ofFloatColor colour = convertMaterialIDToColour(material);
//cout << colour << endl;
polyvxToOfMesh.addColor(colour);
bool col = polyvxToOfMesh.hasColors();
//cout << "hasColors:" << col << endl;
}
}
}
