//-*****************************************************************************
void OFaceSetSchema::set( const Sample &iSamp )
{
ALEMBIC_ABC_SAFE_CALL_BEGIN( "OFaceSetSchema::set()" );
Abc::Box3d emptyBox;
emptyBox.makeEmpty();
// do we need to create child bounds?
if ( iSamp.getChildBounds().hasVolume() && !m_childBoundsProperty)
{
m_childBoundsProperty = Abc::OBox3dProperty( this->getPtr(),
".childBnds", m_facesProperty.getTimeSampling() );
// -1 because we just dis an m_positions set above
size_t numSamples = m_facesProperty.getNumSamples() - 1;
// set all the missing samples
for ( size_t i = 0; i < numSamples; ++i )
{
m_childBoundsProperty.set( emptyBox );
}
}
// We could add sample integrity checking here.
if ( m_facesProperty.getNumSamples () == 0 )
{
// First sample must provide faces
ABCA_ASSERT( iSamp.getFaces() ,
"Sample 0 must provide the faces that make up the faceset." );
m_facesProperty.set( iSamp.getFaces() );
if (m_childBoundsProperty)
{
m_childBoundsProperty.set( iSamp.getChildBounds() );
}
}
else
{
SetPropUsePrevIfNull( m_facesProperty, iSamp.getFaces() );
if ( m_childBoundsProperty )
{
SetPropUsePrevIfNull( m_childBoundsProperty,
iSamp.getChildBounds() );
}
}
// We've now set the sample for the m_faces property.
if ( iSamp.getSelfBounds().hasVolume() )
{
// Caller explicity set bounds for this sample of the faceset.
m_selfBoundsProperty.set( iSamp.getSelfBounds() );
}
else
{
m_selfBoundsProperty.set( iSamp.getSelfBounds() );
// NYI compute self bounds via parent mesh's faces
}
if (m_facesExclusive != kFaceSetNonExclusive)
{
// The user has changed the exclusivity hint from the
// default so we'll create a property now and store.
_recordExclusivityHint();
}
ALEMBIC_ABC_SAFE_CALL_END();
}
//-*****************************************************************************
Abc::Box3d PolyMesh::writeSample( const Abc::OSampleSelector &iSS )
{
// First, call base class sample write, which will return bounds
// of any children.
Abc::index_t sampleIndex = iSS.getIndex();
Abc::Box3d bounds = Exportable::writeSample( iSS );
// If we're not deforming, don't bother with new sample.
// Do calculate bounds and set them, though.
if ( sampleIndex != 0 && !m_deforming )
{
bounds.extendBy( m_firstSampleSelfBounds );
m_boundsProperty.set( bounds, iSS );
return bounds;
}
// Make a mesh
MStatus status;
MFnMesh mesh( m_dagPath, &status );
CHECK_MAYA_STATUS;
mesh.updateSurface();
mesh.syncObject();
// Make a sample.
Abc::OPolyMeshSchema::Sample abcPolyMeshSample;
//-*************************************************************************
// WRITE VERTICES
//-*************************************************************************
MPointArray vertices;
mesh.getPoints( vertices );
size_t npoints = vertices.length();
std::vector<Abc::V3f> v3fVerts( npoints );
Abc::Box3d shapeBounds;
shapeBounds.makeEmpty();
for ( size_t i = 0; i < npoints; ++i )
{
const MPoint &vi = vertices[i];
Abc::V3f pi( vi.x, vi.y, vi.z );
v3fVerts[i] = pi;
shapeBounds.extendBy( Abc::V3d( vi.x, vi.y, vi.z ) );
}
if ( sampleIndex == 0 )
{
m_firstSampleSelfBounds = shapeBounds;
}
bounds.extendBy( shapeBounds );
// Set the bounds sample.
m_boundsProperty.set( bounds, iSS );
// Stuff the positions into the mesh sample.
abcPolyMeshSample.setPositions( Abc::V3fArraySample( v3fVerts ) );
//-*************************************************************************
// OTHER STUFF, FOR FIRST OR LATER VERTICES
//-*************************************************************************
std::vector<Abc::int32_t> abcIndices;
std::vector<Abc::int32_t> abcCounts;
std::vector<Abc::N3f> abcNormals;
std::vector<Abc::V2f> abcUvs;
//-*************************************************************************
// GET MESH NORMALS & UVS
//-*************************************************************************
size_t nnormals = mesh.numNormals();
MFloatVectorArray meshNorms;
if ( nnormals > 0 )
{
mesh.getNormals( meshNorms, MSpace::kObject );
}
size_t nuvs = mesh.numUVs();
MFloatArray meshU;
MFloatArray meshV;
if ( nuvs > 0 )
{
mesh.getUVs( meshU, meshV );
}
//-*************************************************************************
// LOOP OVER FIRST OR SUBSEQUENT SAMPLES
//-*************************************************************************
if ( sampleIndex == 0 )
{
// FIRST SAMPLE
// Loop over polys.
size_t npolys = mesh.numPolygons();
abcCounts.resize( npolys );
Abc::int32_t faceIndex = 0;
Abc::int32_t faceStartVertexIndex = 0;
for ( MItMeshPolygon piter( m_dagPath );
!piter.isDone(); piter.next(), ++faceIndex )
{
Abc::int32_t faceCount = piter.polygonVertexCount();
abcCounts[faceIndex] = faceCount;
faceStartVertexIndex += faceCount;
for ( Abc::int32_t faceVertex = 0;
faceVertex < faceCount; ++faceVertex )
{
abcIndices.push_back( piter.vertexIndex( faceVertex ) );
if ( nnormals > 0 )
{
size_t normIndex = piter.normalIndex( faceVertex );
const MFloatVector &norm = meshNorms[normIndex];
Abc::N3f abcNorm( norm[0], norm[1], norm[2] );
abcNormals.push_back( abcNorm );
}
if ( nuvs > 0 )
{
int uvIndex = 0;
piter.getUVIndex( faceVertex, uvIndex );
Abc::V2f abcUv( meshU[uvIndex], meshV[uvIndex] );
abcUvs.push_back( abcUv );
}
}
}
// We have now collected abcIndices, abcStarts, abcNormals, and abcUvs.
// Put them into the sample.
abcPolyMeshSample.setIndices( Abc::Int32ArraySample( abcIndices ) );
abcPolyMeshSample.setCounts( Abc::Int32ArraySample( abcCounts ) );
if ( nnormals > 0 && m_normals )
{
m_normals.set( Abc::N3fArraySample( abcNormals ), iSS );
}
if ( nuvs > 0 && m_sts )
{
m_sts.set( Abc::V2fArraySample( abcUvs ), iSS );
}
}
else if ( ( nnormals > 0 && m_normals ) ||
( nuvs > 0 && m_sts ) )
{
// SUBSEQUENT SAMPLES
// Just gathering normals and uvs.
// (vertices handled above)
// Loop over polys.
Abc::int32_t faceIndex = 0;
Abc::int32_t faceStartVertexIndex = 0;
for ( MItMeshPolygon piter( m_dagPath );
!piter.isDone(); piter.next(), ++faceIndex )
{
Abc::int32_t faceCount = piter.polygonVertexCount();
for ( Abc::int32_t faceVertex = 0;
faceVertex < faceCount; ++faceVertex )
{
if ( nnormals > 0 )
{
size_t normIndex = piter.normalIndex( faceVertex );
const MFloatVector &norm = meshNorms[normIndex];
Abc::N3f abcNorm( norm[0], norm[1], norm[2] );
abcNormals.push_back( abcNorm );
}
if ( nuvs > 0 )
{
int uvIndex = 0;
piter.getUVIndex( faceVertex, uvIndex );
Abc::V2f abcUv( meshU[uvIndex], meshV[uvIndex] );
abcUvs.push_back( abcUv );
}
}
}
// We have now collected abcNormals, and abcUvs.
// Put them into the sample.
if ( nnormals > 0 && m_normals )
{
m_normals.set( Abc::N3fArraySample( abcNormals ), iSS );
}
if ( nuvs > 0 )
{
m_sts.set( Abc::V2fArraySample( abcUvs ), iSS );
}
}
// Set the mesh sample.
m_polyMesh.getSchema().set( abcPolyMeshSample, iSS );
return bounds;
}