bool
Hd_SmoothNormalsComputation::Resolve()
{
// dependency check first
if (_adjacencyBuilder) {
if (not _adjacencyBuilder->IsResolved()) return false;
}
if (_points) {
if (not _points->IsResolved()) return false;
}
if (not _TryLock()) return false;
HD_TRACE_FUNCTION();
HD_MALLOC_TAG_FUNCTION();
if (not TF_VERIFY(_adjacency)) return true;
int numPoints = _points->GetNumElements();
HdBufferSourceSharedPtr normals;
switch (_points->GetGLElementDataType()) {
case GL_FLOAT_VEC3:
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
_adjacency->ComputeSmoothNormals(
numPoints,
static_cast<const GfVec3f*>(_points->GetData())))));
break;
case GL_DOUBLE_VEC3:
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;
}
bool
HdSt_TriangleIndexBuilderComputation::Resolve()
{
if (!_TryLock()) return false;
HD_TRACE_FUNCTION();
VtVec3iArray trianglesFaceVertexIndices;
VtIntArray primitiveParam;
HdMeshUtil meshUtil(_topology, _id);
meshUtil.ComputeTriangleIndices(
&trianglesFaceVertexIndices,
&primitiveParam);
_SetResult(HdBufferSourceSharedPtr(
new HdVtBufferSource(
HdTokens->indices,
VtValue(trianglesFaceVertexIndices))));
_primitiveParam.reset(new HdVtBufferSource(
HdTokens->primitiveParam,
VtValue(primitiveParam)));
_SetResolved();
return true;
}
bool
HdSt_TriangulateFaceVaryingComputation::Resolve()
{
if (!TF_VERIFY(_source)) return false;
if (!_source->IsResolved()) return false;
if (!_TryLock()) return false;
HD_TRACE_FUNCTION();
HD_PERF_COUNTER_INCR(HdPerfTokens->triangulateFaceVarying);
VtValue result;
HdMeshUtil meshUtil(_topology, _id);
if(meshUtil.ComputeTriangulatedFaceVaryingPrimvar(
_source->GetData(),
_source->GetNumElements(),
_source->GetGLElementDataType(),
&result)) {
_SetResult(HdBufferSourceSharedPtr(
new HdVtBufferSource(
_source->GetName(),
result)));
} else {
_SetResult(_source);
}
_SetResolved();
return true;
}
HdBufferSourceSharedPtr
HdSt_MeshTopology::GetTriangulateFaceVaryingComputation(
HdBufferSourceSharedPtr const &source, SdfPath const &id)
{
return HdBufferSourceSharedPtr(
new HdSt_TriangulateFaceVaryingComputation(this, source, id));
}
HdBufferSourceSharedPtr
Hd_VertexAdjacency::GetAdjacencyBuilderForGPUComputation()
{
// If the cpu adjacency table has requested to be computed (and not yet
// solved), make a dependency to its builder.
HdBufferSourceSharedPtr gpuAdjacecnyBuilder =
HdBufferSourceSharedPtr(new Hd_AdjacencyBuilderForGPUComputation(
this, _adjacencyBuilder.lock()));
return gpuAdjacecnyBuilder;
}
HdBufferSourceSharedPtr
Hd_VertexAdjacency::GetSmoothNormalsComputation(
HdBufferSourceSharedPtr const &points,
TfToken const &dstName, bool packed)
{
// if the vertex adjacency is scheduled to be built (and not yet resolved),
// make a dependency to its builder.
return HdBufferSourceSharedPtr(
new Hd_SmoothNormalsComputation(
this, points, dstName, _adjacencyBuilder.lock(), packed));
}
HdBufferSourceSharedPtr
HdSt_MeshTopology::GetPointsIndexBuilderComputation()
{
// this is simple enough to return the result right away.
int numPoints = GetNumPoints();
VtIntArray indices(numPoints);
for (int i = 0; i < numPoints; ++i) indices[i] = i;
return HdBufferSourceSharedPtr(
new HdVtBufferSource(HdTokens->indices, VtValue(indices)));
}
HdBufferSourceSharedPtr
HdSt_MeshTopology::GetQuadrangulateComputation(
HdBufferSourceSharedPtr const &source, SdfPath const &id)
{
// check if the quad table is already computed as all-quads.
if (_quadInfo && _quadInfo->IsAllQuads()) {
// no need of quadrangulation.
return HdBufferSourceSharedPtr();
}
// Make a dependency to quad info, in case if the topology
// is chaging and the quad info hasn't been populated.
//
// It can be null for the second or later primvar animation.
// Don't call GetQuadInfoBuilderComputation instead. It may result
// unregisterd computation.
HdBufferSourceSharedPtr quadInfo = _quadInfoBuilder.lock();
return HdBufferSourceSharedPtr(
new HdSt_QuadrangulateComputation(this, source, quadInfo, id));
}
HdBufferSourceSharedPtr
HdSt_MeshTopology::GetOsdTopologyComputation(SdfPath const &id)
{
if (HdBufferSourceSharedPtr builder = _osdTopologyBuilder.lock()) {
return builder;
}
// this has to be the first instance.
if (!TF_VERIFY(!_subdivision)) return HdBufferSourceSharedPtr();
// create HdSt_Subdivision
_subdivision = HdSt_Osd3Factory::CreateSubdivision();
if (!TF_VERIFY(_subdivision)) return HdBufferSourceSharedPtr();
bool adaptive = RefinesToBSplinePatches();
// create a topology computation for HdSt_Subdivision
HdBufferSourceSharedPtr builder =
_subdivision->CreateTopologyComputation(this, adaptive,
_refineLevel, id);
_osdTopologyBuilder = builder; // retain weak ptr
return builder;
}
bool
Hd_AdjacencyBuilderForGPUComputation::Resolve()
{
if (!_adjacencyBuilder->IsResolved()) return false;
if (!_TryLock()) return false;
HD_TRACE_FUNCTION();
HF_MALLOC_TAG_FUNCTION();
// prepare buffer source to be transferred.
std::vector<int> const &adjacency = _adjacency->GetAdjacencyTable();
// create buffer source
VtIntArray array(adjacency.size());
for (size_t i = 0; i < adjacency.size(); ++i) {
array[i] = adjacency[i];
}
_SetResult(HdBufferSourceSharedPtr(new HdVtBufferSource(HdTokens->adjacency,
VtValue(array))));
_SetResolved();
return true;
}
bool
Hd_SmoothNormalsComputation::Resolve()
{
// dependency check first
if (_adjacencyBuilder) {
if (!_adjacencyBuilder->IsResolved()) return false;
}
if (!_points->IsResolved()) return false;
if (!_TryLock()) return false;
HD_TRACE_FUNCTION();
HF_MALLOC_TAG_FUNCTION();
if (!TF_VERIFY(_adjacency)) return true;
size_t numPoints = _points->GetNumElements();
HdBufferSourceSharedPtr normals;
switch (_points->GetTupleType().type) {
case HdTypeFloatVec3:
if (_packed) {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
Hd_SmoothNormals::ComputeSmoothNormalsPacked(
_adjacency,
numPoints,
static_cast<const GfVec3f*>(_points->GetData())))));
} else {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
Hd_SmoothNormals::ComputeSmoothNormals(
_adjacency,
numPoints,
static_cast<const GfVec3f*>(_points->GetData())))));
}
break;
case HdTypeDoubleVec3:
if (_packed) {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
Hd_SmoothNormals::ComputeSmoothNormalsPacked(
_adjacency,
numPoints,
static_cast<const GfVec3d*>(_points->GetData())))));
} else {
normals = HdBufferSourceSharedPtr(
new HdVtBufferSource(
_dstName, VtValue(
Hd_SmoothNormals::ComputeSmoothNormals(
_adjacency,
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;
}
HdBufferSourceSharedPtr
HdSt_MeshTopology::GetTriangleIndexBuilderComputation(SdfPath const &id)
{
return HdBufferSourceSharedPtr(
new HdSt_TriangleIndexBuilderComputation(this, id));
}
void
HdxSelectionTask::_Sync(HdTaskContext* ctx)
{
HD_TRACE_FUNCTION();
SdfPath const& id = GetId();
HdSceneDelegate* delegate = GetDelegate();
HdRenderIndex& index = delegate->GetRenderIndex();
HdChangeTracker& changeTracker = index.GetChangeTracker();
HdDirtyBits bits = changeTracker.GetTaskDirtyBits(id);
HdResourceRegistrySharedPtr const& resourceRegistry =
index.GetResourceRegistry();
bool paramsChanged = bits & HdChangeTracker::DirtyParams;
if (paramsChanged) {
_GetSceneDelegateValue(HdTokens->params, &_params);
}
HdxSelectionTrackerSharedPtr sel;
if (_GetTaskContextData(ctx, HdxTokens->selectionState, &sel)) {
sel->Sync(&index);
}
if (sel && (paramsChanged || sel->GetVersion() != _lastVersion)) {
_lastVersion = sel->GetVersion();
VtIntArray offsets;
VtIntArray values;
_hasSelection = sel->GetSelectionOffsetBuffer(&index, &offsets);
if (!_selOffsetBar) {
HdBufferSpecVector offsetSpecs;
offsetSpecs.emplace_back(HdxTokens->hdxSelectionBuffer,
HdTupleType { HdTypeInt32, 1 });
_selOffsetBar = resourceRegistry->AllocateSingleBufferArrayRange(
/*role*/HdxTokens->selection,
offsetSpecs);
}
if (!_selUniformBar) {
HdBufferSpecVector uniformSpecs;
uniformSpecs.emplace_back(HdxTokens->selColor,
HdTupleType { HdTypeFloatVec4, 1 });
uniformSpecs.emplace_back(HdxTokens->selLocateColor,
HdTupleType { HdTypeFloatVec4, 1 });
uniformSpecs.emplace_back(HdxTokens->selMaskColor,
HdTupleType { HdTypeFloatVec4, 1 });
_selUniformBar = resourceRegistry->AllocateUniformBufferArrayRange(
/*role*/HdxTokens->selection,
uniformSpecs);
}
//
// Uniforms
//
HdBufferSourceSharedPtrVector uniformSources;
uniformSources.push_back(HdBufferSourceSharedPtr(
new HdVtBufferSource(HdxTokens->selColor,
VtValue(_params.selectionColor))));
uniformSources.push_back(HdBufferSourceSharedPtr(
new HdVtBufferSource(HdxTokens->selLocateColor,
VtValue(_params.locateColor))));
uniformSources.push_back(HdBufferSourceSharedPtr(
new HdVtBufferSource(HdxTokens->selMaskColor,
VtValue(_params.maskColor))));
resourceRegistry->AddSources(_selUniformBar, uniformSources);
//
// Offsets
//
HdBufferSourceSharedPtr offsetSource(
new HdVtBufferSource(HdxTokens->hdxSelectionBuffer,
VtValue(offsets)));
resourceRegistry->AddSource(_selOffsetBar, offsetSource);
}
if (_params.enableSelection && _hasSelection) {
(*ctx)[HdxTokens->selectionOffsets] = _selOffsetBar;
(*ctx)[HdxTokens->selectionUniforms] = _selUniformBar;
} else {
(*ctx)[HdxTokens->selectionOffsets] = VtValue();
(*ctx)[HdxTokens->selectionUniforms] = VtValue();
}
}
HdBufferSourceSharedPtr
HdSt_MeshTopology::GetQuadIndexBuilderComputation(SdfPath const &id)
{
return HdBufferSourceSharedPtr(
new HdSt_QuadIndexBuilderComputation(this, _quadInfoBuilder.lock(), id));
}
HdBufferSourceSharedPtr
_TriangulateFaceVarying(HdBufferSourceSharedPtr const &source,
VtIntArray const &faceVertexCounts,
VtIntArray const &holeFaces,
bool flip,
SdfPath const &id)
{
T const *srcPtr = reinterpret_cast<T const *>(source->GetData());
int numElements = source->GetNumElements();
// CPU face-varying triangulation
bool invalidTopology = false;
int numFVarValues = 0;
int holeIndex = 0;
int numHoleFaces = holeFaces.size();
for (int i = 0; i < faceVertexCounts.size(); ++i) {
int nv = faceVertexCounts[i] - 2;
if (nv < 1) {
// skip degenerated face
invalidTopology = true;
} else if (holeIndex < numHoleFaces and holeFaces[holeIndex] == i) {
// skip hole face
++holeIndex;
} else {
numFVarValues += 3 * nv;
}
}
if (invalidTopology) {
TF_WARN("degenerated face found [%s]", id.GetText());
invalidTopology = false;
}
VtArray<T> results(numFVarValues);
// reset holeIndex
holeIndex = 0;
int dstIndex = 0;
for (int i = 0, v = 0; i < faceVertexCounts.size(); ++i) {
int nVerts = faceVertexCounts[i];
if (nVerts < 3) {
// Skip degenerate faces.
} else if (holeIndex < numHoleFaces and holeFaces[holeIndex] == i) {
// Skip hole faces.
++holeIndex;
} else {
// triangulate.
// apply same triangulation as index does
for (int j=0; j < nVerts-2; ++j) {
if (not _FanTriangulate(&results[dstIndex],
srcPtr, v, j, numElements, flip)) {
invalidTopology = true;
}
dstIndex += 3;
}
}
v += nVerts;
}
if (invalidTopology) {
TF_WARN("numVerts and verts are incosistent [%s]", id.GetText());
}
return HdBufferSourceSharedPtr(new HdVtBufferSource(
source->GetName(), VtValue(results)));
}
bool
Hd_TriangleIndexBuilderComputation::Resolve()
{
if (not _TryLock()) return false;
HD_TRACE_FUNCTION();
// generate triangle index buffer
int const * numVertsPtr = _topology->GetFaceVertexCounts().cdata();
int const * vertsPtr = _topology->GetFaceVertexIndices().cdata();
int const * holeFacesPtr = _topology->GetHoleIndices().cdata();
int numFaces = _topology->GetFaceVertexCounts().size();
int numVertIndices = _topology->GetFaceVertexIndices().size();
int numTris = 0;
int numHoleFaces = _topology->GetHoleIndices().size();
bool invalidTopology = false;
int holeIndex = 0;
for (int i=0; i<numFaces; ++i) {
int nv = numVertsPtr[i]-2;
if (nv < 1) {
// skip degenerated face
invalidTopology = true;
} else if (holeIndex < numHoleFaces and holeFacesPtr[holeIndex] == i) {
// skip hole face
++holeIndex;
} else {
numTris += nv;
}
}
if (invalidTopology) {
TF_WARN("degenerated face found [%s]", _id.GetText());
invalidTopology = false;
}
VtVec3iArray trianglesFaceVertexIndices(numTris);
VtIntArray primitiveParam(numTris);
bool flip = (_topology->GetOrientation() != HdTokens->rightHanded);
// reset holeIndex
holeIndex = 0;
for (int i=0,tv=0,v=0; i<numFaces; ++i) {
int nv = numVertsPtr[i];
if (nv < 3) {
// Skip degenerate faces.
} else if (holeIndex < numHoleFaces and holeFacesPtr[holeIndex] == i) {
// Skip hole faces.
++holeIndex;
} else {
// edgeFlag is used for inner-line removal of non-triangle
// faces on wireframe shading.
//
// 0__ 0 0 0__
// _/|\ \_ _/. .. . \_
// _/ | \ \_ -> _/ . . . . \_
// / A |C \ B \_ / A . .C . . B \_
// 1-----2---3----4 1-----2 1---2 1----2
//
// Type EdgeFlag Draw
// - 0 show all edges
// A 1 hide [2-0]
// B 2 hide [0-1]
// C 3 hide [0-1] and [2-0]
//
int edgeFlag = 0;
for (int j=0; j < nv-2; ++j) {
if (nv > 3) {
if (j == 0) edgeFlag = flip ? 2 : 1;
else if (j == nv-3) edgeFlag = flip ? 1 : 2;
else edgeFlag = 3;
}
if (not _FanTriangulate(
trianglesFaceVertexIndices[tv],
vertsPtr, v, j, numVertIndices, flip)) {
invalidTopology = true;
}
// note that ptex indexing isn't available along with
// triangulation.
int coarseFaceParam =
HdMeshTopology::EncodeCoarseFaceParam(i, edgeFlag);
primitiveParam[tv] = coarseFaceParam;
++tv;
}
}
// When the face is degenerate and nv > 0, we need to increment the v
// pointer to walk past the degenerate verts.
v += nv;
}
if (invalidTopology) {
TF_WARN("numVerts and verts are incosistent [%s]",
_id.GetText());
}
_SetResult(HdBufferSourceSharedPtr(
new HdVtBufferSource(
HdTokens->indices,
VtValue(trianglesFaceVertexIndices))));
_primitiveParam.reset(new HdVtBufferSource(
HdTokens->primitiveParam,
VtValue(primitiveParam)));
_SetResolved();
return true;
}
void
HdStExtComputation::Sync(HdSceneDelegate *sceneDelegate,
HdRenderParam *renderParam,
HdDirtyBits *dirtyBits)
{
HD_TRACE_FUNCTION();
HF_MALLOC_TAG_FUNCTION();
TF_DEBUG(HD_EXT_COMPUTATION_UPDATED).Msg(
"HdStExtComputation::Sync %s\n", GetId().GetText());
HdExtComputation::_Sync(sceneDelegate, renderParam, dirtyBits);
// We only commit GPU resources when directly executing a GPU computation
// or when aggregating inputs for a downstream computation.
if (GetGpuKernelSource().empty() && !IsInputAggregation()) {
return;
}
HdRenderIndex &renderIndex = sceneDelegate->GetRenderIndex();
HdStResourceRegistrySharedPtr const & resourceRegistry =
boost::dynamic_pointer_cast<HdStResourceRegistry>(
renderIndex.GetResourceRegistry());
HdBufferSourceVector inputs;
for (TfToken const & inputName: GetSceneInputNames()) {
VtValue inputValue = sceneDelegate->GetExtComputationInput(
GetId(), inputName);
size_t arraySize =
inputValue.IsArrayValued() ? inputValue.GetArraySize() : 1;
HdBufferSourceSharedPtr inputSource = HdBufferSourceSharedPtr(
new HdVtBufferSource(inputName, inputValue, arraySize));
if (inputSource->IsValid()) {
inputs.push_back(inputSource);
} else {
TF_WARN("Unsupported type %s for source %s in extComputation %s.",
inputValue.GetType().GetTypeName().c_str(),
inputName.GetText(), GetId().GetText());
}
}
_inputRange.reset();
if (!inputs.empty()) {
if (_IsEnabledSharedExtComputationData() && IsInputAggregation()) {
uint64_t inputId = _ComputeSharedComputationInputId(0, inputs);
HdInstance<uint64_t, HdBufferArrayRangeSharedPtr> barInstance;
std::unique_lock<std::mutex> regLog =
resourceRegistry->RegisterExtComputationDataRange(inputId,
&barInstance);
if (barInstance.IsFirstInstance()) {
// Allocate the first buffer range for this input key
_inputRange = _AllocateComputationDataRange(inputs,
resourceRegistry);
barInstance.SetValue(_inputRange);
TF_DEBUG(HD_SHARED_EXT_COMPUTATION_DATA).Msg(
"Allocated shared ExtComputation buffer range: %s: %p\n",
GetId().GetText(), (void *)_inputRange.get());
} else {
// Share the existing buffer range for this input key
_inputRange = barInstance.GetValue();
TF_DEBUG(HD_SHARED_EXT_COMPUTATION_DATA).Msg(
"Reused shared ExtComputation buffer range: %s: %p\n",
GetId().GetText(), (void *)_inputRange.get());
}
} else {
// We're not sharing, so go ahead and allocate new buffer range.
_inputRange = _AllocateComputationDataRange(inputs,
resourceRegistry);
}
// Make sure that we also release any stale input range data
renderIndex.GetChangeTracker().SetGarbageCollectionNeeded();
}
}
