GT_PrimitiveHandle GusdPrimWrapper::
defineForRead( const GusdUSD_StageProxyHandle& stage,
const UsdGeomImageable& sourcePrim,
const UsdTimeCode& time,
const GusdPurposeSet& purposes )
{
GT_PrimitiveHandle gtUsdPrimHandle;
GusdUSD_ImageableHolder::ScopedLock lock;
GusdUSD_ImageableHolder holder( sourcePrim, stage->GetLock() );
lock.Acquire( holder, /*write*/false);
UsdGeomImageable sourceImageable = *lock;
// Find the function registered for the source prim's type
// to define the prim from read and call that function.
if(sourcePrim) {
USDTypeToDefineFuncMap::const_iterator mapIt
= s_usdTypeToFuncMap.find(sourceImageable.GetPrim().GetTypeName());
if(mapIt != s_usdTypeToFuncMap.end()) {
gtUsdPrimHandle = mapIt->second(stage,sourcePrim,time,purposes);
}
}
return gtUsdPrimHandle;
}
bool
MayaPrimWriter::writePrimAttrs(const MDagPath &dagT, const UsdTimeCode &usdTime, UsdGeomImageable &primSchema)
{
MStatus status;
MFnDependencyNode depFn(getDagPath().node());
MFnDependencyNode depFn2(dagT.node()); // optionally also scan a shape's transform if merging transforms
if (getArgs().exportVisibility) {
bool isVisible = true; // if BOTH shape or xform is animated, then visible
bool isAnimated = false; // if either shape or xform is animated, then animated
PxrUsdMayaUtil::getPlugValue(depFn, "visibility", &isVisible, &isAnimated);
if ( dagT.isValid() ) {
bool isVis, isAnim;
if (PxrUsdMayaUtil::getPlugValue(depFn2, "visibility", &isVis, &isAnim)){
isVisible = isVisible and isVis;
isAnimated = isAnimated or isAnim;
}
}
TfToken const &visibilityTok = (isVisible ? UsdGeomTokens->inherited :
UsdGeomTokens->invisible);
if (usdTime.IsDefault() != isAnimated ) {
if (usdTime.IsDefault())
primSchema.CreateVisibilityAttr(VtValue(visibilityTok), true);
else
primSchema.CreateVisibilityAttr().Set(visibilityTok, usdTime);
}
}
UsdPrim usdPrim = primSchema.GetPrim();
// There is no Gprim abstraction in this module, so process the few
// gprim attrs here.
UsdGeomGprim gprim = UsdGeomGprim(usdPrim);
if (gprim and usdTime.IsDefault()){
PxrUsdMayaPrimWriterContext* unused = NULL;
PxrUsdMayaTranslatorGprim::Write(
getDagPath().node(),
gprim,
unused);
}
_writeUsdInfo(dagT, usdTime, usdPrim);
// Write user-tagged export attributes. Write attributes on the transform
// first, and then attributes on the shape node. This means that attribute
// name collisions will always be handled by taking the shape node's value
// if we're merging transforms and shapes.
if (dagT.isValid() and !(dagT == getDagPath())) {
PxrUsdMayaWriteUtil::WriteUserExportedAttributes(dagT, usdPrim, usdTime);
}
PxrUsdMayaWriteUtil::WriteUserExportedAttributes(getDagPath(), usdPrim, usdTime);
return true;
}
GT_PrimitiveHandle GusdPrimWrapper::
defineForRead( const UsdGeomImageable& sourcePrim,
UsdTimeCode time,
GusdPurposeSet purposes )
{
GT_PrimitiveHandle gtUsdPrimHandle;
// Find the function registered for the source prim's type
// to define the prim from read and call that function.
if(sourcePrim) {
const TfToken& typeName = sourcePrim.GetPrim().GetTypeName();
USDTypeToDefineFuncMap::const_accessor caccessor;
if(s_usdTypeToFuncMap.find(caccessor, typeName)) {
gtUsdPrimHandle = caccessor->second(sourcePrim,time,purposes);
}
else {
// If no function is registered for the prim's type, try to
// find a supported base type.
const TfType& baseType = TfType::Find<UsdSchemaBase>();
const TfType& derivedType
= baseType.FindDerivedByName(typeName.GetText());
vector<TfType> ancestorTypes;
derivedType.GetAllAncestorTypes(&ancestorTypes);
for(size_t i=1; i<ancestorTypes.size(); ++i) {
const TfType& ancestorType = ancestorTypes[i];
vector<string> typeAliases = baseType.GetAliases(ancestorType);
typeAliases.push_back(ancestorType.GetTypeName());
for(auto const& typeAlias : typeAliases) {
if(s_usdTypeToFuncMap.find(caccessor, TfToken(typeAlias))) {
gtUsdPrimHandle = caccessor->second(sourcePrim,time,purposes);
USDTypeToDefineFuncMap::accessor accessor;
s_usdTypeToFuncMap.insert(accessor, typeName);
accessor->second = caccessor->second;
TF_WARN("Type \"%s\" not registered, using base type \"%s\".",
typeName.GetText(), typeAlias.c_str());
break;
}
}
if(gtUsdPrimHandle) break;
}
if(!gtUsdPrimHandle) {
// If we couldn't find a function for the prim's type or any
// of it's base types, register a function which returns an
// empty prim handle.
registerPrimDefinitionFuncForRead(typeName, _nullPrimReadFunc);
TF_WARN("Couldn't read unsupported USD prim type \"%s\".",
typeName.GetText());
}
}
}
return gtUsdPrimHandle;
}
GT_PrimitiveHandle GusdXformWrapper::
defineForRead(
const UsdGeomImageable& sourcePrim,
UsdTimeCode time,
GusdPurposeSet purposes )
{
return new GusdXformWrapper(
UsdGeomXform( sourcePrim.GetPrim() ),
time,
purposes );
}
GT_PrimitiveHandle GusdScopeWrapper::
defineForRead(
const GusdUSD_StageProxyHandle& stage,
const UsdGeomImageable& sourcePrim,
const UsdTimeCode& time,
const GusdPurposeSet& purposes )
{
return new GusdScopeWrapper(
stage,
UsdGeomScope( sourcePrim.GetPrim() ),
time,
purposes );
}
void
GusdPrimWrapper::updateTransformFromGTPrim( const GfMatrix4d &xform,
UsdTimeCode time, bool force )
{
UsdGeomImageable usdGeom = getUsdPrimForWrite();
UsdGeomXformable prim( usdGeom );
// Determine if we need to clear previous transformations from a stronger
// opinion on the stage before authoring ours.
UsdStagePtr stage = usdGeom.GetPrim().GetStage();
UsdEditTarget currEditTarget = stage->GetEditTarget();
// If the edit target does no mapping, it is most likely the session
// layer which means it is in the local layer stack and can overlay
// any xformOps.
if ( !currEditTarget.GetMapFunction().IsNull() &&
!currEditTarget.GetMapFunction().IsIdentity() ) {
bool reset;
std::vector<UsdGeomXformOp> xformVec = prim.GetOrderedXformOps(&reset);
// The xformOps attribute is static so we only check if we haven't
// changed anything yet. In addition nothing needs to be cleared if it
// was previously empty.
if (m_lastXformSet.IsDefault() && (int)xformVec.size() > 0) {
// Load the root layer for temp, stronger opinion changes.
stage->GetRootLayer()->SetPermissionToSave(false);
stage->SetEditTarget(stage->GetRootLayer());
UsdGeomXformable stagePrim( getUsdPrimForWrite() );
// Clear the xformOps on the stronger layer, so our weaker edit
// target (with mapping across a reference) can write out clean,
// new transforms.
stagePrim.ClearXformOpOrder();
stage->SetEditTarget(currEditTarget);
}
}
if( !prim )
return;
// Try to avoid setting the transform when we can.
// If force it true, always write the transform (used when writting per frame)
bool setKnot = true;
if( !force ) {
// Has the transform has been set at least once
if( !m_lastXformSet.IsDefault() ) {
// Is the transform at this frame the same as the last frame
if( isClose(xform,m_xformCache) ) {
setKnot = false;
m_lastXformCompared = time;
}
else {
// If the transform has been held for more than one frame,
// set a knot on the last frame
if( m_lastXformCompared != m_lastXformSet ) {
prim.MakeMatrixXform().Set( m_xformCache, m_lastXformCompared );
}
}
}
else {
// If the transform is an identity, don't set it
if( isClose(xform,GfMatrix4d( 1.0 ))) {
setKnot = false;
m_lastXformCompared = time;
}
else {
// If the transform was identity and now isn't, set a knot on the last frame
if( !m_lastXformCompared.IsDefault() ) {
prim.MakeMatrixXform().Set( GfMatrix4d(1.0), m_lastXformCompared );
}
}
}
}
if( setKnot ) {
prim.MakeMatrixXform().Set( xform, time );
m_xformCache = xform;
m_lastXformSet = time;
m_lastXformCompared = time;
}
}
bool
GusdGU_PackedUSD::unpackPrim(
GU_Detail& destgdp,
UsdGeomImageable prim,
const SdfPath& primPath,
const UT_Matrix4D& xform,
const GT_RefineParms& rparms,
bool addPathAttributes ) const
{
GT_PrimitiveHandle gtPrim =
GusdPrimWrapper::defineForRead(
prim,
m_frame,
m_purposes );
if( !gtPrim ) {
const TfToken &type = prim.GetPrim().GetTypeName();
if( type != "PxHairman" && type != "PxProcArgs" )
TF_WARN( "Can't convert prim for unpack. %s. Type = %s.",
prim.GetPrim().GetPath().GetText(),
type.GetText() );
return false;
}
GusdPrimWrapper* wrapper = UTverify_cast<GusdPrimWrapper*>(gtPrim.get());
if( !wrapper->unpack(
destgdp,
fileName(),
primPath,
xform,
intrinsicFrame(),
#if SYS_VERSION_FULL_INT < 0x10050000
intrinsicViewportLOD(),
#else
intrinsicViewportLOD( getPrim() ),
#endif
m_purposes )) {
// If the wrapper prim does not do the unpack, do it here.
UT_Array<GU_Detail *> details;
if( prim.GetPrim().IsInMaster() ) {
gtPrim->setPrimitiveTransform( new GT_Transform( &xform, 1 ) );
}
GA_Size startIndex = destgdp.getNumPrimitives();
GT_Util::makeGEO(details, gtPrim, &rparms);
for (exint i = 0; i < details.entries(); ++i)
{
copyPrimitiveGroups(*details(i), false);
#if SYS_VERSION_FULL_INT < 0x11000000
unpackToDetail(destgdp, details(i), true);
#else
unpackToDetail(destgdp, details(i), &xform);
#endif
delete details(i);
}
if( addPathAttributes ) {
// Add usdpath and usdprimpath attributes to unpacked geometry.
GA_Size endIndex = destgdp.getNumPrimitives();
const char *path = prim.GetPrim().GetPath().GetString().c_str();
if( endIndex > startIndex )
{
GA_RWHandleS primPathAttr(
destgdp.addStringTuple( GA_ATTRIB_PRIMITIVE, GUSD_PRIMPATH_ATTR, 1 ));
GA_RWHandleS pathAttr(
destgdp.addStringTuple( GA_ATTRIB_PRIMITIVE, GUSD_PATH_ATTR, 1 ));
for( GA_Size i = startIndex; i < endIndex; ++i )
{
primPathAttr.set( destgdp.primitiveOffset( i ), 0, path );
pathAttr.set( destgdp.primitiveOffset( i ), 0, fileName().c_str() );
}
}
}
}
return true;
}
