skelData.h

//
// Copyright 2025 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_USD_IMAGING_USD_SKEL_IMAGING_SKEL_DATA_H
#define PXR_USD_IMAGING_USD_SKEL_IMAGING_SKEL_DATA_H
 
#include "pxr/usdImaging/usdSkelImaging/api.h"
 
#include "pxr/usdImaging/usdSkelImaging/animationSchema.h"
#include "pxr/usdImaging/usdSkelImaging/skeletonSchema.h"
 
#include "pxr/imaging/hd/dataSource.h"
#include "pxr/imaging/hd/dataSourceTypeDefs.h"
 
#include "pxr/usd/sdf/path.h"
#include "pxr/usd/usdSkel/animMapper.h"
#include "pxr/usd/usdSkel/topology.h"
 
#include "pxr/base/vt/array.h"
 
#include "pxr/base/tf/declarePtrs.h"
 
PXR_NAMESPACE_OPEN_SCOPE
 
TF_DECLARE_REF_PTRS(HdSceneIndexBase);
 
struct UsdSkelImagingSkelData
{
    SdfPath primPath;
 
    UsdSkelImagingSkeletonSchema skeletonSchema;
 
    UsdSkelTopology topology;
 
    VtArray<GfMatrix4f> bindTransforms;
    VtArray<GfMatrix4f> inverseBindTransforms;
 
    UsdSkelImagingSkelData(const SdfPath& path, 
        const UsdSkelImagingSkeletonSchema& schema);
};
 
USDSKELIMAGING_API
UsdSkelImagingSkelData
UsdSkelImagingComputeSkelData(
    HdSceneIndexBaseRefPtr const &sceneIndex,
    const SdfPath &primPath);
 
USDSKELIMAGING_API
VtArray<GfMatrix4f>
UsdSkelImagingComputeSkinningTransforms(
    const UsdSkelImagingSkelData &data,
    HdMatrix4fArrayDataSourceHandle const &restTransforms,
    const VtArray<UsdSkelImagingAnimationSchema>& animationSchemas,
    const VtArray<SdfPath>& animationSources,
    const HdSampledDataSource::Time& shutterOffset);
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif