void
GusdUSD_XformCache::XformInfo::ComputeFlags(const UsdPrim& prim,
GusdUSD_XformCache& cache)
{
if(query.TransformMightBeTimeVarying()) {
_flags = FLAGS_LOCAL_MAYBE_TIMEVARYING|
FLAGS_WORLD_MAYBE_TIMEVARYING;
} else {
/* Local transform isn't time-varying, but maybe the parent is.*/
if(!query.GetResetXformStack()) {
UsdPrim parent = prim.GetParent();
if(parent && parent.GetPath() != SdfPath::AbsoluteRootPath()) {
auto info = cache.GetXformInfo(parent);
if(info && info->WorldXformIsMaybeTimeVarying())
_flags = FLAGS_WORLD_MAYBE_TIMEVARYING;
}
}
}
if(!query.GetResetXformStack()) {
UsdPrim parent = prim.GetParent();
if(parent && parent.GetPath() != SdfPath::AbsoluteRootPath())
_flags |= FLAGS_HAS_PARENT_XFORM;
}
}
bool
UsdGeomPrimvarsAPI::HasPossiblyInheritedPrimvar(const TfToken &name) const
{
TRACE_FUNCTION();
UsdPrim prim = GetPrim();
if (!prim) {
TF_CODING_ERROR("HasPossiblyInheritedPrimvar called on invalid prim: %s",
UsdDescribe(prim).c_str());
return false;
}
UsdGeomPrimvar pv = GetPrimvar(name);
if (pv.HasAuthoredValue()){
return true;
}
const TfToken attrName = UsdGeomPrimvar::_MakeNamespaced(name);
if (attrName.IsEmpty()) {
return false;
}
for (prim = prim.GetParent(); prim && !prim.IsPseudoRoot();
prim = prim.GetParent()) {
UsdAttribute attr = prim.GetAttribute(attrName);
if (attr.HasAuthoredValue() && UsdGeomPrimvar::IsPrimvar(attr)) {
// Only constant primvars can be inherited.
// Non-constant interpolation blocks inheritance.
return UsdGeomPrimvar(attr).GetInterpolation()
== UsdGeomTokens->constant;
}
}
return false;
}
void
UsdRiStatementsAPI::SetCoordinateSystem(const std::string &coordSysName)
{
UsdAttribute attr = GetPrim().CreateAttribute(_tokens->coordsys,
SdfValueTypeNames->String,
/* custom = */ false);
if (TF_VERIFY(attr)) {
attr.Set(coordSysName);
UsdPrim currPrim = GetPrim();
while (currPrim && currPrim.GetPath() != SdfPath::AbsoluteRootPath()) {
if (currPrim.IsModel() && !currPrim.IsGroup() &&
currPrim.GetPath() != SdfPath::AbsoluteRootPath()) {
UsdRelationship rel =
currPrim.CreateRelationship(_tokens->modelCoordsys,
/* custom = */ false);
if (TF_VERIFY(rel)) {
// Order should not matter, since these are a set,
// but historically we have appended these.
rel.AddTarget(GetPrim().GetPath());
}
break;
}
currPrim = currPrim.GetParent();
}
}
}
UsdGeomPrimvar
UsdGeomPrimvarsAPI::FindPrimvarWithInheritance(const TfToken &name) const
{
TRACE_FUNCTION();
const TfToken attrName = UsdGeomPrimvar::_MakeNamespaced(name);
UsdPrim prim = GetPrim();
if (!prim) {
TF_CODING_ERROR("FindPrimvarWithInheritance called on invalid prim: %s",
UsdDescribe(prim).c_str());
return UsdGeomPrimvar();
}
UsdGeomPrimvar localPv = GetPrimvar(name);
if (localPv.HasAuthoredValue()){
return localPv;
}
for (prim = prim.GetParent(); prim && !prim.IsPseudoRoot();
prim = prim.GetParent()) {
UsdAttribute attr = prim.GetAttribute(attrName);
if (attr.HasAuthoredValue()) {
if (UsdGeomPrimvar pv = UsdGeomPrimvar(attr)) {
// Only constant primvars can be inherited.
if (pv.GetInterpolation() == UsdGeomTokens->constant) {
return pv;
} else {
// Non-constant interpolation blocks inheritance.
return UsdGeomPrimvar();
}
}
}
}
return localPv;
}
void
UsdRiStatementsAPI::SetScopedCoordinateSystem(const std::string &coordSysName)
{
UsdAttribute attr = GetPrim().CreateAttribute(_tokens->scopedCoordsys,
SdfValueTypeNames->String,
/* custom = */ false);
if (TF_VERIFY(attr)) {
attr.Set(coordSysName);
UsdPrim currPrim = GetPrim();
while (currPrim) {
if (currPrim.IsModel() && !currPrim.IsGroup() &&
currPrim.GetPath() != SdfPath::AbsoluteRootPath()) {
UsdRelationship rel =
currPrim.CreateRelationship(_tokens->modelScopedCoordsys,
/* custom = */ false);
if (TF_VERIFY(rel)) {
rel.AddTarget(GetPrim().GetPath());
}
break;
}
currPrim = currPrim.GetParent();
}
}
}
bool GusdXformWrapper::
initUsdPrim(const UsdStagePtr& stage,
const SdfPath& path,
bool asOverride)
{
bool newPrim = true;
if( asOverride ) {
UsdPrim existing = stage->GetPrimAtPath( path );
if( existing ) {
// Note that we are creating a Xformable rather than a Xform.
// If we are writing an overlay and the ROP sees a geometry packed prim,
// we want to write just the xform. In that case we can use a xform
// wrapper to write the xform on any prim type.
m_usdXformForWrite = UsdGeomXformable(stage->OverridePrim( path ));
newPrim = false;
}
else {
m_usdXformForWrite = UsdGeomXform::Define( stage, path );
// Make sure our ancestors have proper types.
UsdPrim p = m_usdXformForWrite.GetPrim().GetParent();
while( p && p.GetTypeName().IsEmpty() ) {
UsdGeomXform::Define( stage, p.GetPath() );
p = p.GetParent();
}
}
}
else {
m_usdXformForWrite = UsdGeomXform::Define( stage, path );
}
if( !m_usdXformForWrite || !m_usdXformForWrite.GetPrim().IsValid() ) {
TF_WARN( "Unable to create %s xform '%s'.", newPrim ? "new" : "override", path.GetText() );
}
return bool(m_usdXformForWrite);
}
static
void
_RecurseForInheritablePrimvars(const UsdPrim &prim, const TfToken &pvPrefix,
std::vector<UsdGeomPrimvar> *primvars,
bool acceptAll = false)
{
if (prim.IsPseudoRoot())
return;
// The `acceptAll` override is only useful for the prim we are actually
// querying, i.e. the *first* prim on which this function is called
_RecurseForInheritablePrimvars(prim.GetParent(), pvPrefix, primvars);
_AddPrimToInheritedPrimvars(prim, pvPrefix, primvars, primvars, acceptAll);
}
UsdSkelSkeletonQuery
UsdSkel_CacheImpl::ReadScope::GetInheritedSkelQuery(const UsdPrim& prim) const
{
_PrimToSkelQueryMap::const_accessor a;
for(UsdPrim p = prim; p; p = p.GetParent()) {
if(_cache->_skelQueryCache.find(a, p)) {
return a->second;
}
if(prim.IsA<UsdSkelRoot>()) {
break;
}
}
return UsdSkelSkeletonQuery();
}
/// Finds the rootmost ancestor of the prim at \p path that is an Xform
/// or SkelRoot type prim. The result may be the prim itself.
static UsdPrim
_FindRootmostXformOrSkelRoot(const UsdStagePtr& stage, const SdfPath& path)
{
UsdPrim currentPrim = stage->GetPrimAtPath(path);
UsdPrim rootmost;
while (currentPrim) {
if (currentPrim.IsA<UsdGeomXform>()) {
rootmost = currentPrim;
} else if (currentPrim.IsA<UsdSkelRoot>()) {
rootmost = currentPrim;
}
currentPrim = currentPrim.GetParent();
}
return rootmost;
}
bool
GusdUSD_XformCache::GetLocalToWorldTransform(const UsdPrim& prim,
UsdTimeCode time,
UT_Matrix4D& xform)
{
const auto info = GetXformInfo(prim);
if(BOOST_UNLIKELY(!info))
return false;
// See if we can remap the time to for unvarying xforms.
if(!time.IsDefault() && !info->WorldXformIsMaybeTimeVarying()) {
/* XXX: we know we're not time varying, but that doesn't
mean that we can key default, since there might still
be a single varying value that we'd miss.
Key off of time=0 instead.*/
time = UsdTimeCode(0.0);
}
_VaryingKey key(GusdUSD_VaryingPropertyKey(prim, time));
if(auto item = _worldXforms.findItem(key)) {
xform = UTverify_cast<const _CappedXformItem*>(item.get())->xform;
return true;
}
/* XXX: Race is possible when setting computed value,
but it's preferable to have multiple threads compute the
same thing than to cause lock contention.*/
if(_GetLocalTransformation(prim, time, xform, info)) {
if(BOOST_UNLIKELY(!info->HasParentXform())) {
_worldXforms.addItem(key, UT_CappedItemHandle(
new _CappedXformItem(xform)));
return true;
}
UsdPrim parent = prim.GetParent();
UT_ASSERT_P(parent);
UT_Matrix4D parentXf;
if(GetLocalToWorldTransform(parent, time, parentXf)) {
xform *= parentXf;
_worldXforms.addItem(
key, UT_CappedItemHandle(new _CappedXformItem(xform)));
return true;
}
}
return false;
}
/* virtual */
void
UsdImagingMaterialAdapter::MarkMaterialDirty(UsdPrim const& prim,
SdfPath const& cachePath,
UsdImagingIndexProxy* index)
{
// If this is invoked on behalf of a Shader prim underneath a
// Material prim, walk up to the enclosing Material.
SdfPath materialCachePath = cachePath;
UsdPrim materialPrim = prim;
while (materialPrim && !materialPrim.IsA<UsdShadeMaterial>()) {
materialPrim = materialPrim.GetParent();
materialCachePath = materialCachePath.GetParentPath();
}
if (!TF_VERIFY(materialPrim)) {
return;
}
index->MarkSprimDirty(materialCachePath, HdMaterial::DirtyResource);
}
PXR_NAMESPACE_CLOSE_SCOPE
// ===================================================================== //
// Feel free to add custom code below this line. It will be preserved by
// the code generator.
//
// Just remember to wrap code in the appropriate delimiters:
// 'PXR_NAMESPACE_OPEN_SCOPE', 'PXR_NAMESPACE_CLOSE_SCOPE'.
// ===================================================================== //
// --(BEGIN CUSTOM CODE)--
PXR_NAMESPACE_OPEN_SCOPE
UsdSkelRoot
UsdSkelRoot::Find(const UsdPrim& prim)
{
for(UsdPrim p = prim; p; p = p.GetParent()) {
if(p.IsA<UsdSkelRoot>()) {
return UsdSkelRoot(p);
}
}
return UsdSkelRoot();
}
bool
UsdRelationship::GetTargets(SdfPathVector* targets) const
{
TRACE_FUNCTION();
UsdStage *stage = _GetStage();
PcpErrorVector pcpErrors;
std::vector<std::string> otherErrors;
PcpTargetIndex targetIndex;
{
// Our intention is that the following code requires read-only
// access to the PcpCache, so use a const-ref.
const PcpCache& pcpCache(*stage->_GetPcpCache());
// In USD mode, Pcp does not cache property indexes, so we
// compute one here ourselves and use that. First, we need
// to get the prim index of the owning prim.
const PcpPrimIndex &primIndex = _Prim()->GetPrimIndex();
// PERFORMANCE: Here we can't avoid constructing the full property path
// without changing the Pcp API. We're about to do serious
// composition/indexing, though, so the added expense may be neglible.
const PcpSite propSite(pcpCache.GetLayerStackIdentifier(), GetPath());
PcpPropertyIndex propIndex;
PcpBuildPrimPropertyIndex(propSite.path, pcpCache, primIndex,
&propIndex, &pcpErrors);
PcpBuildTargetIndex(propSite, propIndex, SdfSpecTypeRelationship,
&targetIndex, &pcpErrors);
}
targets->swap(targetIndex.paths);
if (!targets->empty() && _Prim()->IsInMaster()) {
Usd_PrimDataConstPtr master = get_pointer(_Prim());
while (!master->IsMaster()) {
master = master->GetParent();
}
// Paths that point to an object under the master's source prim index
// are internal to the master and need to be translated to either
// the master or instance we're currently looking at.
const SdfPath& masterSourcePrimIndexPath =
master->GetSourcePrimIndex().GetPath();
if (GetPrim().IsInMaster()) {
// Translate any paths that point to an object at or under the
// source prim index to our master.
for (SdfPath& target : *targets) {
target = target.ReplacePrefix(
masterSourcePrimIndexPath, master->GetPath());
}
}
else if (GetPrim().IsInstanceProxy()) {
// Translate any paths that point to an object at or under the
// source prim index to our instance.
UsdPrim instance = GetPrim();
while (!instance.IsInstance()) {
instance = instance.GetParent();
}
for (SdfPath& target : *targets) {
target = target.ReplacePrefix(
masterSourcePrimIndexPath, instance.GetPath());
}
}
}
// TODO: handle errors
const bool hasErrors = !(pcpErrors.empty() && otherErrors.empty());
if (hasErrors) {
stage->_ReportErrors(
pcpErrors, otherErrors,
TfStringPrintf("Getting targets for relationship <%s>",
GetPath().GetText()));
}
return !hasErrors;
}
