void
UsdImagingPointsAdapter::UpdateForTime(UsdPrim const& prim,
SdfPath const& cachePath,
UsdTimeCode time,
HdDirtyBits requestedBits,
HdDirtyBits* resultBits,
UsdImagingInstancerContext const*
instancerContext)
{
BaseAdapter::UpdateForTime(
prim, cachePath, time, requestedBits, resultBits, instancerContext);
UsdImagingValueCache* valueCache = _GetValueCache();
PrimvarInfoVector& primvars = valueCache->GetPrimvars(cachePath);
VtValue& pointsValues = valueCache->GetPoints(cachePath);
if (requestedBits & HdChangeTracker::DirtyPoints) {
_GetPoints(prim, &pointsValues, time);
UsdImagingValueCache::PrimvarInfo primvar;
primvar.name = HdTokens->points;
primvar.interpolation = UsdGeomTokens->vertex;
_MergePrimvar(primvar, &primvars);
}
if (requestedBits & HdChangeTracker::DirtyWidths) {
UsdImagingValueCache::PrimvarInfo primvar;
UsdGeomPoints points(prim);
VtFloatArray widths;
primvar.name = UsdGeomTokens->widths;
// XXX Add support for real constant interpolation
primvar.interpolation = UsdGeomTokens->vertex;
// Read the widths, if there is no widths create a buffer
// and fill it with default widths of 1.0f
if (!points.GetWidthsAttr().Get(&widths, time)) {
// Check if we have just updated the points because in that
// case we don't need to read the points again
if (!(requestedBits & HdChangeTracker::DirtyPoints)) {
_GetPoints(prim, &pointsValues, time);
}
for(size_t i = 0; i < pointsValues.Get<VtVec3fArray>().size() ; i ++) {
widths.push_back(1.0f);
}
}
_MergePrimvar(primvar, &primvars);
valueCache->GetWidths(cachePath) = VtValue(widths);
}
}
void
UsdImagingCubeAdapter::UpdateForTime(UsdPrim const& prim,
SdfPath const& cachePath,
UsdTimeCode time,
HdDirtyBits requestedBits,
HdDirtyBits* resultBits,
UsdImagingInstancerContext const*
instancerContext)
{
BaseAdapter::UpdateForTime(
prim, cachePath, time, requestedBits, resultBits, instancerContext);
UsdImagingValueCache* valueCache = _GetValueCache();
if (requestedBits & HdChangeTracker::DirtyTransform) {
// Update the transform with the size authored for the cube.
GfMatrix4d& ctm = valueCache->GetTransform(cachePath);
GfMatrix4d xf = GetMeshTransform(prim, time);
ctm = xf * ctm;
}
if (requestedBits & HdChangeTracker::DirtyTopology) {
valueCache->GetTopology(cachePath) = GetMeshTopology();
}
if (requestedBits & HdChangeTracker::DirtyPoints) {
valueCache->GetPoints(cachePath)= GetMeshPoints(prim, time);
// Expose points as a primvar.
UsdImagingValueCache::PrimvarInfo primvar;
primvar.name = HdTokens->points;
primvar.interpolation = UsdGeomTokens->vertex;
PrimvarInfoVector& primvars = valueCache->GetPrimvars(cachePath);
_MergePrimvar(primvar, &primvars);
}
}
void
UsdImagingMeshAdapter::UpdateForTime(UsdPrim const& prim,
SdfPath const& cachePath,
UsdTimeCode time,
HdDirtyBits requestedBits,
HdDirtyBits* resultBits,
UsdImagingInstancerContext const*
instancerContext)
{
BaseAdapter::UpdateForTime(
prim, cachePath, time, requestedBits, resultBits, instancerContext);
UsdImagingValueCache* valueCache = _GetValueCache();
PrimvarInfoVector& primvars = valueCache->GetPrimvars(cachePath);
if (requestedBits & HdChangeTracker::DirtyTopology) {
VtValue& topology = valueCache->GetTopology(cachePath);
_GetMeshTopology(prim, &topology, time);
}
if (requestedBits & HdChangeTracker::DirtyPoints) {
VtValue& points = valueCache->GetPoints(cachePath);
_GetPoints(prim, &points, time);
UsdImagingValueCache::PrimvarInfo primvar;
primvar.name = HdTokens->points;
primvar.interpolation = UsdGeomTokens->vertex;
_MergePrimvar(primvar, &primvars);
}
if (requestedBits & HdChangeTracker::DirtySubdivTags) {
SubdivTags& tags = valueCache->GetSubdivTags(cachePath);
_GetSubdivTags(prim, &tags, time);
}
}
// Thread safe.
// * Populate dirty bits for the given \p time.
void
UsdImagingConeAdapter::UpdateForTime(UsdPrim const& prim,
SdfPath const& cachePath,
UsdTimeCode time,
int requestedBits,
int* resultBits,
UsdImagingInstancerContext const*
instancerContext)
{
BaseAdapter::UpdateForTime(
prim, cachePath, time, requestedBits, resultBits, instancerContext);
UsdImagingValueCache* valueCache = _GetValueCache();
if (requestedBits & HdChangeTracker::DirtyTopology) {
valueCache->GetTopology(cachePath) = GetMeshTopology();
}
if (requestedBits & HdChangeTracker::DirtyPoints) {
valueCache->GetPoints(cachePath) = GetMeshPoints(prim, time);
// Expose points as a primvar.
UsdImagingValueCache::PrimvarInfo primvar;
primvar.name = HdTokens->points;
primvar.interpolation = UsdGeomTokens->vertex;
_MergePrimvar(primvar, &valueCache->GetPrimvars(cachePath));
}
}
void
UsdImagingGprimAdapter::_DiscoverPrimvars(UsdGeomGprim const& gprim,
SdfPath const& cachePath,
UsdShadeShader const& shader,
UsdTimeCode time,
UsdImagingValueCache* valueCache)
{
// TODO: It might be convenient to implicitly wire up PtexFaceOffset and
// PtexFaceIndex primvars.
TF_DEBUG(USDIMAGING_SHADERS).Msg("\t Looking for <%s> primvars at <%s>\n",
gprim.GetPrim().GetPath().GetText(),
shader.GetPrim().GetPath().GetText());
for (UsdShadeParameter const& param : shader.GetParameters()) {
UsdShadeShader source;
TfToken outputName;
if (param.GetConnectedSource(&source, &outputName)) {
UsdAttribute attr = source.GetIdAttr();
TfToken id;
if (not attr or not attr.Get(&id)) {
continue;
}
TF_DEBUG(USDIMAGING_SHADERS).Msg("\t\t Param <%s> connected <%s>(%s)\n",
param.GetAttr().GetName().GetText(),
source.GetPath().GetText(),
id.GetText());
if (id == UsdHydraTokens->HwPrimvar_1) {
TfToken t;
VtValue v;
UsdGeomPrimvar primvarAttr;
if (UsdHydraPrimvar(source).GetVarnameAttr().Get(&t,
UsdTimeCode::Default())) {
primvarAttr = gprim.GetPrimvar(t);
if (primvarAttr.ComputeFlattened(&v, time)) {
TF_DEBUG(USDIMAGING_SHADERS).Msg("Found primvar %s\n",
t.GetText());
UsdImagingValueCache::PrimvarInfo primvar;
primvar.name = t;
primvar.interpolation = primvarAttr.GetInterpolation();
valueCache->GetPrimvar(cachePath, t) = v;
_MergePrimvar(primvar, &valueCache->GetPrimvars(cachePath));
} else {
TF_DEBUG(USDIMAGING_SHADERS).Msg(
"\t\t No primvar on <%s> named %s\n",
gprim.GetPath().GetText(),
t.GetText());
}
}
} else {
// Recursively look for more primvars
_DiscoverPrimvars(gprim, cachePath, source, time, valueCache);
}
}
}
}
void
UsdImagingGprimAdapter::_DiscoverPrimvarsDeprecated(UsdGeomGprim const& gprim,
SdfPath const& cachePath,
UsdPrim const& shaderPrim,
UsdTimeCode time,
UsdImagingValueCache* valueCache)
{
UsdImagingValueCache::PrimvarInfo primvar;
std::vector<UsdProperty> const& props
= shaderPrim.GetProperties();
TF_FOR_ALL(propIt, props) {
UsdAttribute attr = propIt->As<UsdAttribute>();
if (not attr) {
continue;
}
if (attr.GetPath().IsNamespacedPropertyPath()) {
continue;
}
// Ok this is a parameter, check source input.
if (UsdAttribute texAttr = shaderPrim.GetAttribute(
TfToken(attr.GetPath().GetName()
+ ":texture"))) {
TfToken t;
SdfAssetPath ap;
VtValue v;
UsdGeomPrimvar primvarAttr;
texAttr.Get(&ap, UsdTimeCode::Default());
bool isPtex = GlfPtexTexture::IsPtexTexture(TfToken(ap.GetAssetPath()));
if (isPtex) {
t = UsdImagingTokens->ptexFaceIndex;
// Allow the client to override this name
texAttr.GetMetadata(UsdImagingTokens->faceIndexPrimvar, &t);
primvarAttr = gprim.GetPrimvar(t);
if (primvarAttr) {
if (primvarAttr.ComputeFlattened(&v, time)) {
primvar.name = t;
primvar.interpolation = primvarAttr.GetInterpolation();
valueCache->GetPrimvar(cachePath, t) = v;
_MergePrimvar(primvar, &valueCache->GetPrimvars(cachePath));
}
}
t = UsdImagingTokens->ptexFaceOffset;
// Allow the client to override this name
texAttr.GetMetadata(UsdImagingTokens->faceOffsetPrimvar, &t);
primvarAttr = gprim.GetPrimvar(t);
if (primvarAttr) {
primvar.name = t;
primvar.interpolation = primvarAttr.GetInterpolation();
if (primvarAttr.ComputeFlattened(&v, time)) {
valueCache->GetPrimvar(cachePath, t) = v;
_MergePrimvar(primvar, &valueCache->GetPrimvars(cachePath));
}
}
} else {
texAttr.GetMetadata(UsdImagingTokens->uvPrimvar, &t);
primvarAttr = gprim.GetPrimvar(t);
if (TF_VERIFY(primvarAttr, "%s\n", t.GetText())) {
if (TF_VERIFY(primvarAttr.ComputeFlattened(&v, time))) {
primvar.name = t; // does not include primvars:
primvar.interpolation = primvarAttr.GetInterpolation();
// Convert double to float, we don't need double precision.
if (v.IsHolding<VtVec2dArray>()) {
v = VtValue::Cast<VtVec2fArray>(v);
}
valueCache->GetPrimvar(cachePath, t) = v;
_MergePrimvar(primvar, &valueCache->GetPrimvars(cachePath));
}
}
}
} else if (UsdAttribute pvAttr = shaderPrim.GetAttribute(
TfToken(attr.GetPath().GetName()
+ ":primvar"))) {
TfToken t;
VtValue v;
UsdGeomPrimvar primvarAttr;
if (TF_VERIFY(pvAttr.Get(&t, UsdTimeCode::Default()))) {
primvarAttr = gprim.GetPrimvar(t);
if (TF_VERIFY(primvarAttr.ComputeFlattened(&v, time))) {
primvar.name = t; // does not include primvars:
primvar.interpolation = primvarAttr.GetInterpolation();
valueCache->GetPrimvar(cachePath, t) = v;
_MergePrimvar(primvar, &valueCache->GetPrimvars(cachePath));
}
}
}
}
