void readSubD(double iFrame, MFnMesh & ioMesh, MObject & iParent,
Alembic::AbcGeom::ISubD & iNode, bool iInitialized)
{
Alembic::AbcGeom::ISubDSchema schema = iNode.getSchema();
Alembic::AbcGeom::MeshTopologyVariance ttype = schema.getTopologyVariance();
int64_t index, ceilIndex;
double alpha = getWeightAndIndex(iFrame,
schema.getTimeSampling(), schema.getNumSamples(), index, ceilIndex);
MFloatPointArray pointArray;
Alembic::Abc::V3fArraySamplePtr ceilPoints;
// we can just read the points
if (ttype != Alembic::AbcGeom::kHeterogenousTopology && iInitialized)
{
Alembic::Abc::V3fArraySamplePtr points = schema.getPositions().getValue(
Alembic::Abc::ISampleSelector(index) );
if (alpha != 0.0)
{
ceilPoints = schema.getPositions().getValue(
Alembic::Abc::ISampleSelector(ceilIndex) );
}
fillPoints(pointArray, points, ceilPoints, alpha);
ioMesh.setPoints(pointArray, MSpace::kObject);
if (schema.getUVs().getNumSamples() > 1)
{
setUVs(iFrame, ioMesh, schema.getUVs());
}
return;
}
// we need to read the topology
Alembic::AbcGeom::ISubDSchema::Sample samp;
schema.get(samp, Alembic::Abc::ISampleSelector(index));
if (alpha != 0.0 && ttype != Alembic::AbcGeom::kHeterogenousTopology)
{
ceilPoints = schema.getPositions().getValue(
Alembic::Abc::ISampleSelector(ceilIndex) );
}
fillPoints(pointArray, samp.getPositions(), ceilPoints, alpha);
fillTopology(ioMesh, iParent, pointArray, samp.getFaceIndices(),
samp.getFaceCounts());
setUVs(iFrame, ioMesh, schema.getUVs());
}
MObject createSubD(double iFrame, Alembic::AbcGeom::ISubD & iNode,
MObject & iParent, std::vector<std::string> & oSampledPropNameList)
{
Alembic::AbcGeom::ISubDSchema schema = iNode.getSchema();
int64_t index, ceilIndex;
double alpha = getWeightAndIndex(iFrame, schema.getTimeSampling(),
schema.getNumSamples(), index, ceilIndex);
Alembic::AbcGeom::ISubDSchema::Sample samp;
schema.get(samp, Alembic::Abc::ISampleSelector(index));
MString name(iNode.getName().c_str());
MFnMesh fnMesh;
MFloatPointArray pointArray;
Alembic::Abc::V3fArraySamplePtr emptyPtr;
fillPoints(pointArray, samp.getPositions(), emptyPtr, 0.0);
fillTopology(fnMesh, iParent, pointArray, samp.getFaceIndices(),
samp.getFaceCounts());
fnMesh.setName(iNode.getName().c_str());
setInitialShadingGroup(fnMesh.partialPathName());
MObject obj = fnMesh.object();
//addProperties(iFrame, iNode, obj, oSampledPropNameList);
setUVs(iFrame, fnMesh, schema.getUVs());
// add the mFn-specific attributes to fnMesh node
MFnNumericAttribute numAttr;
MString attrName("SubDivisionMesh");
MObject attrObj = numAttr.create(attrName, attrName,
MFnNumericData::kBoolean, 1);
numAttr.setKeyable(true);
numAttr.setHidden(false);
fnMesh.addAttribute(attrObj, MFnDependencyNode::kLocalDynamicAttr);
if (samp.getInterpolateBoundary() > 0)
{
attrName = MString("interpolateBoundary");
attrObj = numAttr.create(attrName, attrName, MFnNumericData::kBoolean,
samp.getInterpolateBoundary());
numAttr.setKeyable(true);
numAttr.setHidden(false);
fnMesh.addAttribute(attrObj, MFnDependencyNode::kLocalDynamicAttr);
}
if (samp.getFaceVaryingInterpolateBoundary() > 0)
{
attrName = MString("faceVaryingInterpolateBoundary");
attrObj = numAttr.create(attrName, attrName, MFnNumericData::kBoolean,
samp.getFaceVaryingInterpolateBoundary());
numAttr.setKeyable(true);
numAttr.setHidden(false);
fnMesh.addAttribute(attrObj, MFnDependencyNode::kLocalDynamicAttr);
}
if (samp.getFaceVaryingPropagateCorners() > 0)
{
attrName = MString("faceVaryingPropagateCorners");
attrObj = numAttr.create(attrName, attrName, MFnNumericData::kBoolean,
samp.getFaceVaryingPropagateCorners());
numAttr.setKeyable(true);
numAttr.setHidden(false);
fnMesh.addAttribute(attrObj, MFnDependencyNode::kLocalDynamicAttr);
}
if (samp.getHoles() && !samp.getHoles()->size() == 0)
{
printWarning("Hole Poly Indices not yet supported.");
}
if (samp.getCreaseSharpnesses() &&
!samp.getCreaseSharpnesses()->size() == 0)
{
printWarning("Creases not yet supported.");
}
if (samp.getCornerSharpnesses() &&
!samp.getCornerSharpnesses()->size() == 0)
{
printWarning("Corners not yet supported.");
}
return obj;
}