bool
Hd_SmoothNormalsComputation::Resolve()
{
// dependency check first
if (_adjacencyBuilder) {
if (!_adjacencyBuilder->IsResolved()) return false;
}
if (_points) {
if (!_points->IsResolved()) return false;
}
if (!_TryLock()) return false;
HD_TRACE_FUNCTION();
HF_MALLOC_TAG_FUNCTION();
if (!TF_VERIFY(_adjacency)) return true;
int numPoints = _points->GetNumElements();
HdBufferSourceSharedPtr normals;
switch (_points->GetGLElementDataType()) {
case GL_FLOAT_VEC3:
if (_packed) {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
_adjacency->ComputeSmoothNormalsPacked(
numPoints,
static_cast<const GfVec3f*>(_points->GetData())))));
} else {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
_adjacency->ComputeSmoothNormals(
numPoints,
static_cast<const GfVec3f*>(_points->GetData())))));
}
break;
case GL_DOUBLE_VEC3:
if (_packed) {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
_adjacency->ComputeSmoothNormalsPacked(
numPoints,
static_cast<const GfVec3d*>(_points->GetData())))));
} else {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
_adjacency->ComputeSmoothNormals(
numPoints,
static_cast<const GfVec3d*>(_points->GetData())))));
}
break;
default:
TF_CODING_ERROR("Unsupported points type for computing smooth normals");
break;
}
_SetResult(normals);
// call base class to mark as resolved.
_SetResolved();
return true;
}
virtual bool Resolve() {
if (not _TryLock()) return false;
_SetResolved();
return true;
}