jointInfluencesData.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_JOINT_INFLUENCES_DATA_H
#define PXR_USD_IMAGING_USD_SKEL_IMAGING_JOINT_INFLUENCES_DATA_H
 
#include "pxr/usdImaging/usdSkelImaging/api.h"
 
#include "pxr/usd/usdSkel/animMapper.h"
 
#include "pxr/imaging/hd/dataSourceTypeDefs.h"
 
PXR_NAMESPACE_OPEN_SCOPE
 
class HdPrimvarsSchema;
 
struct UsdSkelImagingJointInfluencesData
{
    // Each vec2f is a pair of a joint index and weight.
    //
    // If hasConstantInfluences is false, then the array contains
    // numInfluencesPerComponent elements for each point of the skinned
    // prim.
    //
    // Otherwise, the array just contains numInfluencesPerComponent
    // and every point is affected the same way.
    VtVec2fArray influences;
    bool hasConstantInfluences;
    int numInfluencesPerComponent;
 
    // Remapping of joints in skeleton to joints used for skinning.
    UsdSkelAnimMapper jointMapper;
};
 
USDSKELIMAGING_API
UsdSkelImagingJointInfluencesData
UsdSkelImagingComputeJointInfluencesData(
    HdContainerDataSourceHandle const &primSource,
    HdContainerDataSourceHandle const &skeletonPrimSource);
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif