hkaSimdSkinningDeformer.h
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上传日期:2020-08-09
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其他游戏
开发平台:
Visual C++
- /*
- *
- * Confidential Information of Telekinesys Research Limited (t/a Havok). Not for disclosure or distribution without Havok's
- * prior written consent. This software contains code, techniques and know-how which is confidential and proprietary to Havok.
- * Level 2 and Level 3 source code contains trade secrets of Havok. Havok Software (C) Copyright 1999-2009 Telekinesys Research Limited t/a Havok. All Rights Reserved. Use of this software is subject to the terms of an end user license agreement.
- *
- */
- #ifndef HKA_SIMD_SKINNING_DEFORMER_H
- #define HKA_SIMD_SKINNING_DEFORMER_H
- #include <Animation/Animation/Deform/Skinning/hkaSkinningDeformer.h>
- /// The derived reference counted class for a SIMD based implementation of weighted vertex deformation.
- /// Applies to both indexed and non indexed skinning.
- /// This deformer requires that the input buffers' deformable
- /// members (pos, normals) be aligned as a hkVector4 (16byte aligned as it is 128bit)
- /// and for faster operation make sure that the outputs are aligned as well.
- /// N.B. It is important to note that these deformers are here to be used by Havok's demos but are not production quality.
- /// It is assumed that deforming will be done most commonly by your graphics engine, usually in hardware on GPUs or VUs.
- /// That hardware deformation is usually performed at the same time as per vertex lighting operations, so Havok cannot
- /// provide optimized deformers for all such game specific usage.
- class hkaSimdSkinningDeformer : public hkReferencedObject, public hkaSkinningDeformer
- {
- public:
- /// Constructs an unbound deformer
- hkaSimdSkinningDeformer();
- /// Bind this deformer to input and output buffers.
- /// The input format is assumed to have (at least) vertex weights.
- /// The output buffer should be preallocated.
- /// Returns false if the deformer does not support the input or output buffer format.
- hkBool bind( const hkaVertexDeformerInput& input, const hkxVertexBuffer* inputBuffer, hkxVertexBuffer* outputBuffer );
- /// Deform the input buffer into the output buffer using the array of matrices specified.
- /// The deformer must first be bound and the output buffer locked before deforming.
- virtual void deform( const hkTransform* m_worldCompositeMatrices );
- struct hkaSimdBinding
- {
- HK_DECLARE_NONVIRTUAL_CLASS_ALLOCATOR( HK_MEMORY_CLASS_ANIM_RUNTIME, hkaSimdSkinningDeformer::hkaSimdBinding );
- // Input buffer
- const hkVector4* m_iPosBase;
- const hkVector4* m_iNormBase;
- const hkVector4* m_iBinormBase;
- const hkVector4* m_iTangentBase;
- const hkUint8* m_iWeightBase;
- const hkUint8* m_iIndexBase;
- hkUint8 m_iPosVectorStride; // STRIDE IN VECTOR4s
- hkUint8 m_iNormVectorStride;
- hkUint8 m_iBinormVectorStride;
- hkUint8 m_iTangentVectorStride;
- hkUint8 m_iIndexByteStride; // STRIDE IN BYTES
- hkUint8 m_iWeightByteStride; // STRIDE IN BYTES
- hkUint8 m_bonesPerVertex;
- // Output buffer
- hkReal* m_oPosBase;
- hkReal* m_oNormBase;
- hkReal* m_oBinormBase;
- hkReal* m_oTangentBase;
- hkUint8 m_oPosFloatStride;
- hkUint8 m_oNormFloatStride;
- hkUint8 m_oBinormFloatStride;
- hkUint8 m_oTangentFloatStride;
- hkUint32 m_numVerts;
- hkBool m_outputAligned;
- };
- /// Will call either one of the aligned static funcs, depending on m_outputAligned in binding.
- static void HK_CALL deform( const hkTransform* m_worldCompositeMatrices, const hkaSimdBinding& binding );
- /// Input and Output are both 16 byte aligned
- static void HK_CALL deformAligned( const hkTransform* m_worldCompositeMatrices, const hkaSimdBinding& binding );
- /// Only Input is 16 byte aligned, requires internal loop copy to unaligned float output buffers so slower
- static void HK_CALL deformAlignedInput( const hkTransform* m_worldCompositeMatrices, const hkaSimdBinding& binding );
- protected:
- struct hkaSimdBinding m_binding;
- };
- #endif // HKA_SIMD_SKINNING_DEFORMER_H
- /*
- * Havok SDK - NO SOURCE PC DOWNLOAD, BUILD(#20090216)
- *
- * Confidential Information of Havok. (C) Copyright 1999-2009
- * Telekinesys Research Limited t/a Havok. All Rights Reserved. The Havok
- * Logo, and the Havok buzzsaw logo are trademarks of Havok. Title, ownership
- * rights, and intellectual property rights in the Havok software remain in
- * Havok and/or its suppliers.
- *
- * Use of this software for evaluation purposes is subject to and indicates
- * acceptance of the End User licence Agreement for this product. A copy of
- * the license is included with this software and is also available at www.havok.com/tryhavok.
- *
- */