void BVH::createLeafNode(int start, int end, AABoundingBox &bbox, BVHBuildNode *node, int *numTotalNodes)
{
int firstTriOffset = m_orderedTriangles.size();
int firstInstanceOffset = m_orderedInstances.size();
int numTris = 0;
int numInstances = 0;
for(int i=start; i<end;i++){
if(m_buildData[i].m_type == 0){
int triangleId = m_buildData[i].m_triangleId;
m_orderedTriangles.push_back(m_triangles[triangleId]);
numTris++;
}
else{
int instanceId = m_buildData[i].m_triangleId;
m_orderedInstances.push_back(m_instances[instanceId]);
numInstances++;
}
}
if(numInstances == 0)
node->initLeaf(firstTriOffset, numTris, bbox, 0);
else{
BVHBuildNode *leftNode;
BVHBuildNode *rightNode;
rightNode = node;
if(numTris > 0){
rightNode = new BVHBuildNode();
leftNode = new BVHBuildNode();
(*numTotalNodes)+=2;
leftNode->initLeaf(firstTriOffset, numTris, bbox, 0);
node->initInterior(0, leftNode, rightNode);
}
rightNode->initLeaf(firstInstanceOffset, numInstances, bbox, 1);
}
}
