//------------------------------------------------------------------------------
// generate display IDs for Vtr faces
static void
createFaceNumbers(OpenSubdiv::Far::TopologyRefiner const & refiner,
std::vector<Vertex> const & vertexBuffer) {
static char buf[16];
if (refiner.IsUniform()) {
int maxlevel = refiner.GetMaxLevel(),
firstvert = 0;
for (int i=0; i<maxlevel; ++i) {
firstvert += refiner.GetNumVertices(i);
}
for (int face=0; face<refiner.GetNumFaces(maxlevel); ++face) {
Vertex center(0.0f, 0.0f, 0.0f);
OpenSubdiv::Far::IndexArray const verts =
refiner.GetFaceVertices(maxlevel, face);
float weight = 1.0f / (float)verts.size();
for (int vert=0; vert<verts.size(); ++vert) {
center.AddWithWeight(vertexBuffer[firstvert+verts[vert]], weight);
}
snprintf(buf, 16, "%d", face);
g_font->Print3D(center.GetPos(), buf, 2);
}
} else {
int maxlevel = refiner.GetMaxLevel(),
// patch = refiner.GetNumFaces(0),
firstvert = refiner.GetNumVertices(0);
for (int level=1; level<=maxlevel; ++level) {
int nfaces = refiner.GetNumFaces(level);
for (int face=0; face<nfaces; ++face /*, ++patch */) {
Vertex center(0.0f, 0.0f, 0.0f);
OpenSubdiv::Far::IndexArray const verts =
refiner.GetFaceVertices(level, face);
float weight = 1.0f / (float)verts.size();
for (int vert=0; vert<verts.size(); ++vert) {
center.AddWithWeight(vertexBuffer[firstvert+verts[vert]], weight);
}
snprintf(buf, 16, "%d", face);
g_font->Print3D(center.GetPos(), buf, 2);
}
firstvert+=refiner.GetNumVertices(level);
}
}
}
