#ifndef _AlembicExport_MayaTransformWriter_h_
#define _AlembicExport_MayaTransformWriter_h_
#include "Foundation.h"
#include <Alembic/AbcGeom/OXform.h>
#include <Alembic/AbcGeom/XformOp.h>
#include "AttributesWriter.h"
struct AnimSampler;
struct AnimChan
{
AnimChan()
: scale(1.0)
, opNum(0)
, channelNum(0)
, channelOp(Alembic::AbcGeom::kScaleOperation)
, sampler(NULL)
{
}
double asDouble(void);
double scale;
AnimSampler* sampler;
std::size_t opNum;
Alembic::AbcGeom::XformOperationType channelOp;
Alembic::Util::uint32_t channelNum;
};
struct AnimSampler
{
virtual ~AnimSampler() {;}
virtual const MString& name()
const = 0;
virtual double asDouble(Alembic::AbcGeom::XformOperationType channelOp, Alembic::Util::uint32_t channelNum) = 0;
virtual AnimChan animChan(Alembic::AbcGeom::XformOperationType channelOp, Alembic::Util::uint32_t channelNum, double scale = 1.0) const
{
AnimChan chan;
chan.channelOp = channelOp;
chan.channelNum = channelNum;
chan.sampler = (AnimSampler*)this;
chan.scale = scale;
return chan;
}
bool isTranslationChannel(Alembic::AbcGeom::XformOperationType channelOp, Alembic::Util::uint32_t channelNum) const
{
return channelOp == Alembic::AbcGeom::kTranslateOperation && channelNum <= 2 ;
}
bool isRotationChannel(Alembic::AbcGeom::XformOperationType channelOp, Alembic::Util::uint32_t channelNum) const
{
return channelOp >= Alembic::AbcGeom::kRotateXOperation &&
channelOp <= Alembic::AbcGeom::kRotateZOperation &&
channelNum <= 2 ;
}
};
inline double AnimChan::asDouble(void)
{
return (sampler) ? sampler->asDouble( channelOp, channelNum ) : plug.asDouble();
}
class MayaTransformWriter
{
public:
enum {
kChannel0=0,
kChannel1=1,
kChannel2=2,
};
MayaTransformWriter(Alembic::Abc::OObject & iParent,
MDagPath & iDag,
Alembic::Util::uint32_t iTimeIndex, const JobArgs & iArgs);
MayaTransformWriter(MayaTransformWriter & iParent,
MDagPath & iDag,
Alembic::Util::uint32_t iTimeIndex, const JobArgs & iArgs);
MayaTransformWriter(Alembic::Abc::OObject & iParent,
const AnimSampler& sampler,
Alembic::Util::uint32_t iTimeIndex, const JobArgs & iArgs);
~MayaTransformWriter();
void write();
bool isAnimated() const;
Alembic::Abc::OObject getObject() {return mSchema.getObject();};
AttributesWriterPtr getAttrs() {return mAttrs;};
private:
Alembic::AbcGeom::OXformSchema mSchema;
AttributesWriterPtr mAttrs;
void pushTransformStack(
const MFnTransform & iTrans,
bool iForceStatic);
void pushTransformStack(
const MFnIkJoint & iTrans,
bool iForceStatic);
void pushTransformStack(const AnimSampler& sampler, bool iForceStatic);
Alembic::AbcGeom::XformSample mSample;
std::vector < AnimChan > mAnimChanList;
size_t mJointOrientOpIndex[3];
size_t mRotateOpIndex[3];
size_t mRotateAxisOpIndex[3];
bool mVerbose;
bool mFilterEulerRotations;
};
typedef Alembic::Util::shared_ptr < MayaTransformWriter >
MayaTransformWriterPtr;
#endif // _AlembicExport_MayaTransformWriter_h_