AbcExport/MayaMeshWriter.h

AbcExport/MayaMeshWriter.h
//-*****************************************************************************
//
// Copyright (c) 2009-2014,
// Sony Pictures Imageworks Inc. and
// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
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// distribution.
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//-*****************************************************************************
#ifndef _AbcExport_MayaMeshWriter_h_
#define _AbcExport_MayaMeshWriter_h_
#include "Foundation.h"
#include "AttributesWriter.h"
#include "MayaTransformWriter.h"
#include <Alembic/AbcGeom/OPolyMesh.h>
#include <Alembic/AbcGeom/OSubD.h>
// Mechanism to cache the MFnSet::getMembers results
struct mObjectCmp
{
bool operator()(const MObject& o1, const MObject& o2) const
{
return strcmp(MFnDependencyNode(o1).name().asChar(), MFnDependencyNode(o2).name().asChar()) < 0;
}
};
typedef std::map <MObject, MSelectionList, mObjectCmp> GetMembersMap;
// Writes an MFnMesh as a poly mesh OR a subd mesh
class MayaMeshWriter
{
public:
MayaMeshWriter(MDagPath & iDag, Alembic::Abc::OObject & iParent,
Alembic::Util::uint32_t iTimeIndex, const JobArgs & iArgs,
GetMembersMap& gmMap);
void write();
bool isAnimated() const;
bool isSubD();
unsigned int getNumCVs();
unsigned int getNumFaces();
AttributesWriterPtr getAttrs() {return mAttrs;};
private:
void fillTopology(
std::vector<float> & oPoints,
std::vector<Alembic::Util::int32_t> & oFacePoints,
std::vector<Alembic::Util::int32_t> & oPointCounts);
void writePoly(const Alembic::AbcGeom::OV2fGeomParam::Sample & iUVs);
void writeSubD(const Alembic::AbcGeom::OV2fGeomParam::Sample & iUVs);
void getUVs(std::vector<float> & uvs,
std::vector<Alembic::Util::uint32_t> & indices,
std::string & name);
void getPolyNormals(std::vector<float> & oNormals);
bool mNoNormals;
bool mWriteUVs;
bool mWriteColorSets;
bool mWriteUVSets;
bool mIsGeometryAnimated;
MDagPath mDagPath;
AttributesWriterPtr mAttrs;
Alembic::AbcGeom::OPolyMeshSchema mPolySchema;
Alembic::AbcGeom::OSubDSchema mSubDSchema;
void writeColor();
std::vector<Alembic::AbcGeom::OC3fGeomParam> mRGBParams;
std::vector<Alembic::AbcGeom::OC4fGeomParam> mRGBAParams;
void writeUVSets();
typedef std::vector<Alembic::AbcGeom::OV2fGeomParam> UVParamsVec;
UVParamsVec mUVparams;
};
#endif // _AbcExport_MayaMeshWriter_h_