void getSubDTimeSpan(ISubD iSub, chrono_t& first, chrono_t& last) {
ISubDSchema mesh = iSub.getSchema();
TimeSamplingPtr ts = mesh.getTimeSampling();
first = std::min(first, ts->getSampleTime(0) );
last = std::max(last, ts->getSampleTime(mesh.getNumSamples()-1) );
}
//-*****************************************************************************
void ProcessSubD( ISubD &subd, ProcArgs &args, const std::string & facesetName )
{
ISubDSchema &ss = subd.getSchema();
TimeSamplingPtr ts = ss.getTimeSampling();
SampleTimeSet sampleTimes;
GetRelevantSampleTimes( args, ts, ss.getNumSamples(), sampleTimes );
bool multiSample = sampleTimes.size() > 1;
//include this code path for future expansion
bool isHierarchicalSubD = false;
bool hasLocalResources = false;
std::vector<IFaceSet> faceSets;
std::vector<std::string> faceSetResourceNames;
if ( facesetName.empty() )
{
std::vector <std::string> childFaceSetNames;
ss.getFaceSetNames(childFaceSetNames);
faceSets.reserve(childFaceSetNames.size());
faceSetResourceNames.reserve(childFaceSetNames.size());
for (size_t i = 0; i < childFaceSetNames.size(); ++i)
{
faceSets.push_back(ss.getFaceSet(childFaceSetNames[i]));
IFaceSet & faceSet = faceSets.back();
std::string resourceName = args.getResource(
faceSet.getFullName() );
if ( resourceName.empty() )
{
resourceName = args.getResource( faceSet.getName() );
}
#ifdef PRMAN_USE_ABCMATERIAL
Mat::MaterialFlatten mafla(faceSet);
if (!mafla.empty())
{
if (!hasLocalResources)
{
RiResourceBegin();
hasLocalResources = true;
}
RiAttributeBegin();
if ( !resourceName.empty() )
{
//restore existing resource state here
RestoreResource( resourceName );
}
WriteMaterial( mafla, args );
resourceName = faceSet.getFullName();
SaveResource( resourceName );
RiAttributeEnd();
}
#endif
faceSetResourceNames.push_back(resourceName);
}
}
#ifdef PRMAN_USE_ABCMATERIAL
else
{
//handle single faceset material directly
if ( ss.hasFaceSet( facesetName ) )
{
IFaceSet faceSet = ss.getFaceSet( facesetName );
ApplyObjectMaterial(faceSet, args);
}
}
#endif
if ( multiSample ) { WriteMotionBegin( args, sampleTimes ); }
for ( SampleTimeSet::iterator iter = sampleTimes.begin();
iter != sampleTimes.end(); ++iter )
{
ISampleSelector sampleSelector( *iter );
ISubDSchema::Sample sample = ss.getValue( sampleSelector );
RtInt npolys = (RtInt) sample.getFaceCounts()->size();
ParamListBuilder paramListBuilder;
paramListBuilder.add( "P", (RtPointer)sample.getPositions()->get() );
IV2fGeomParam uvParam = ss.getUVsParam();
if ( uvParam.valid() )
{
ICompoundProperty parent = uvParam.getParent();
if ( !args.flipv )
{
AddGeomParamToParamListBuilder<IV2fGeomParam>(
parent,
uvParam.getHeader(),
sampleSelector,
"float",
paramListBuilder,
2,
"st");
}
else if ( std::vector<float> * values =
AddGeomParamToParamListBuilderAsFloat<IV2fGeomParam, float>(
parent,
uvParam.getHeader(),
sampleSelector,
"float",
paramListBuilder,
"st") )
{
for ( size_t i = 1, e = values->size(); i < e; i += 2 )
{
(*values)[i] = 1.0 - (*values)[i];
}
}
}
ICompoundProperty arbGeomParams = ss.getArbGeomParams();
AddArbitraryGeomParams( arbGeomParams,
sampleSelector, paramListBuilder );
std::string subdScheme = sample.getSubdivisionScheme();
SubDTagBuilder tags;
ProcessFacevaryingInterpolateBoundry( tags, sample );
ProcessInterpolateBoundry( tags, sample );
ProcessFacevaryingPropagateCorners( tags, sample );
ProcessHoles( tags, sample );
ProcessCreases( tags, sample );
ProcessCorners( tags, sample );
if ( !facesetName.empty() )
{
if ( ss.hasFaceSet( facesetName ) )
{
IFaceSet faceSet = ss.getFaceSet( facesetName );
ApplyResources( faceSet, args );
// TODO, move the hold test outside of MotionBegin
// as it's not meaningful to change per sample
IFaceSetSchema::Sample faceSetSample =
faceSet.getSchema().getValue( sampleSelector );
std::set<int> facesToKeep;
facesToKeep.insert( faceSetSample.getFaces()->get(),
faceSetSample.getFaces()->get() +
faceSetSample.getFaces()->size() );
for ( int i = 0; i < npolys; ++i )
{
if ( facesToKeep.find( i ) == facesToKeep.end() )
{
tags.add( "hole" );
tags.addIntArg( i );
}
}
}
}
else
{
//loop through the facesets and determine whether there are any
//resources assigned to each
for (size_t i = 0; i < faceSetResourceNames.size(); ++i)
{
const std::string & resourceName = faceSetResourceNames[i];
//TODO, visibility?
if ( !resourceName.empty() )
{
IFaceSet & faceSet = faceSets[i];
isHierarchicalSubD = true;
tags.add("faceedit");
Int32ArraySamplePtr faces = faceSet.getSchema().getValue(
sampleSelector ).getFaces();
for (size_t j = 0, e = faces->size(); j < e; ++j)
{
tags.addIntArg(1); //yep, every face gets a 1 in front of it too
tags.addIntArg( (int) faces->get()[j]);
}
tags.addStringArg( "attributes" );
tags.addStringArg( resourceName );
tags.addStringArg( "shading" );
}
}
}
if ( isHierarchicalSubD )
{
RiHierarchicalSubdivisionMeshV(
const_cast<RtToken>( subdScheme.c_str() ),
npolys,
(RtInt*) sample.getFaceCounts()->get(),
(RtInt*) sample.getFaceIndices()->get(),
tags.nt(),
tags.tags(),
tags.nargs( true ),
tags.intargs(),
tags.floatargs(),
tags.stringargs(),
paramListBuilder.n(),
paramListBuilder.nms(),
paramListBuilder.vals()
);
}
else
{
RiSubdivisionMeshV(
const_cast<RtToken>(subdScheme.c_str() ),
npolys,
(RtInt*) sample.getFaceCounts()->get(),
(RtInt*) sample.getFaceIndices()->get(),
tags.nt(),
tags.tags(),
tags.nargs( false ),
tags.intargs(),
tags.floatargs(),
paramListBuilder.n(),
paramListBuilder.nms(),
paramListBuilder.vals()
);
}
}
if ( multiSample ) { RiMotionEnd(); }
if ( hasLocalResources ) { RiResourceEnd(); }
}