hkpMeshWeldingUtility.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 HK_MESHWELDINGUTILITY_H
- #define HK_MESHWELDINGUTILITY_H
- #include <Common/Base/hkBase.h>
- #include <Common/Base/Algorithm/Sort/hkSort.h>
- class hkpBvTreeShape;
- class hkpTriangleShape;
- class hkpExtendedMeshShape;
- /// Utility functions for building runtime welding information for triangular meshes
- class hkpMeshWeldingUtility
- {
- public:
- /// specify consistency tests
- enum WindingConsistency
- {
- WINDING_IGNORE_CONSISTENCY, ///
- WINDING_TEST_CONSISTENCY, ///
- };
- struct ShapeInfo
- {
- hkTransform m_transform;
- const hkpBvTreeShape* m_shape;
- };
- static hkResult HK_CALL computeWeldingInfo( const hkTransform& meshTransform, hkpExtendedMeshShape* mesh, hkArray< ShapeInfo >& shapes, bool weldOpenEdges, WindingConsistency testConsistency );
- /// A function to generate welding information for a shape in a mesh. This welding should be
- /// stored by the mesh and set as the welding information in the triangle returned by getChildShape() with that shape key.
- static hkResult HK_CALL calcWeldingInfoForTriangle( hkpShapeKey shapeKey, const hkpBvTreeShape* bvTreeShape, WindingConsistency testConsistency, hkUint16& info );
- /// A function to check if winding is consistent between a triangle and its neighbors.
- static hkBool HK_CALL isTriangleWindingValid( hkpShapeKey shapeKey, const hkpBvTreeShape* bvTreeShape );
- public:
- // Helper for calcWeldingInfoForTriangle
- static hkResult HK_CALL calcBitcodeForTriangleEdge(const hkpBvTreeShape* bvTreeShape, const hkpTriangleShape* triangleShape, hkpShapeKey triangleShapeKey, int edgeIndex, WindingConsistency testConsistency, hkInt16& combinedBitcodesOut );
- // Helper to extract a single bitcode for a specific edge
- static int HK_CALL calcSingleEdgeBitcode(hkUint16 triangleEdgesBitcode, int edgeIndex );
- // Helper for calcWeldingInfoForTriangle
- static int HK_CALL createSingularVertexArray(const hkVector4 *vertices0, const hkVector4 *vertices1, int edgeIndex, hkVector4* vertexArrayOut, int orderedEdgeVerticesOnTriangle1[2]);
- // Helper for calcWeldingInfoForTriangle
- static hkUint16 HK_CALL modifyCombinedEdgesBitcode(hkUint16 combinedBitcode, int edgeIndex, int bitcode);
- // Helper for calcWeldingInfoForTriangle
- static int HK_CALL calcEdgeAngleBitcode(const hkVector4* vertices);
- // Helper for calcWeldingInfoForTriangle
- static int HK_CALL calcEdgeAngleBitcode(hkReal angle);
- // Helper for calcWeldingInfoForTriangle
- static void HK_CALL calcAntiClockwiseTriangleNormal(const hkVector4& vertex0, const hkVector4& vertex1, const hkVector4& vertex2, hkVector4& normal);
- // Helper for calcWeldingInfoForTriangle
- static hkReal HK_CALL calcAngleFromVertices(const hkVector4* vertices, hkReal& sinAngleOut, hkReal& cosAngleOut);
- // Helper for computeWeldingInfo
- static hkReal HK_CALL calcAngleForEdge(hkVector4Parameter edgeNormal, hkVector4Parameter edgeOrtho, hkVector4Parameter triangleNormal);
- };
- #endif // HK_MESHWELDINGUTILITY_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.
- *
- */