80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
/**
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* @file llskinningutil.h
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* @brief Functions for mesh object skinning
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* @author vir@lindenlab.com
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*
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* $LicenseInfo:firstyear=2015&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2015, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LLSKINNINGUTIL_H
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#define LLSKINNINGUTIL_H
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#include "v2math.h"
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#include "v4math.h"
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#include "llvector4a.h"
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#include "llmatrix4a.h"
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class LLVOAvatar;
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class LLMeshSkinInfo;
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class LLVolumeFace;
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class LLJointRiggingInfoTab;
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namespace LLSkinningUtil
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{
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S32 getMaxJointCount();
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S32 getMaxGLTFJointCount();
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U32 getMeshJointCount(const LLMeshSkinInfo *skin);
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void scrubInvalidJoints(LLVOAvatar *avatar, LLMeshSkinInfo* skin);
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void initSkinningMatrixPalette(LLMatrix4a* mat, S32 count, const LLMeshSkinInfo* skin, LLVOAvatar *avatar);
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void checkSkinWeights(LLVector4a* weights, U32 num_vertices, const LLMeshSkinInfo* skin);
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void scrubSkinWeights(LLVector4a* weights, U32 num_vertices, const LLMeshSkinInfo* skin);
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void getPerVertexSkinMatrix(F32* weights, const LLMatrix4a* mat, bool handle_bad_scale, LLMatrix4a& final_mat, U32 max_joints);
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LL_FORCE_INLINE void getPerVertexSkinMatrixWithIndices(
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F32* weights,
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U8* idx,
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LLMatrix4a* mat,
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LLMatrix4a& final_mat,
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LLMatrix4a* src)
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{
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final_mat.clear();
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src[0].setMul(mat[idx[0]], weights[0]);
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src[1].setMul(mat[idx[1]], weights[1]);
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final_mat.add(src[0]);
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final_mat.add(src[1]);
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src[2].setMul(mat[idx[2]], weights[2]);
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src[3].setMul(mat[idx[3]], weights[3]);
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final_mat.add(src[2]);
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final_mat.add(src[3]);
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}
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void initJointNums(LLMeshSkinInfo* skin, LLVOAvatar *avatar);
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void updateRiggingInfo(const LLMeshSkinInfo* skin, LLVOAvatar *avatar, LLVolumeFace& vol_face);
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LLQuaternion getUnscaledQuaternion(const LLMatrix4& mat4);
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};
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namespace FSSkinningUtil
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{
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void getPerVertexSkinMatrixSSE( LLVector4a const &weights, const LLMatrix4a* mat, bool handle_bad_scale, LLMatrix4a& final_mat, U32 max_joints );
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}
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#endif
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