void
SingularPODTypedAttribute<Abc::OInt32Property>::writeSample
( const Abc::OSampleSelector &iSS )
{
MStatus status;
if ( !m_nodeHandle.isValid() ||
!m_attrHandle.isValid() ||
m_plug.isNull() )
{
MGlobal::displayError( "ERROR: Invalid node or attr handle in "
"SingularPODTypedAttribute<T>::writeSample()" );
return;
}
// MObject nodeObj = m_nodeHandle.objectRef();
// MObject attrObj = m_attrHandle.objectRef();
// MPlug plug( nodeObj, attrObj, &status );
// CHECK_MAYA_STATUS;
// value_type value;
int value;
status = m_plug.getValue( value );
CHECK_MAYA_STATUS;
if ( iSS.getIndex() == 0 || m_animated )
{
m_property.set( value, iSS );
}
}
//-*****************************************************************************
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;
}