NVIDIA(R) PhysX(R) SDK 3.4 API Reference: PxMeshScale.h Source File

NVIDIA PhysX SDK 3.4 API

PxMeshScale.h

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00026 // Copyright (c) 2008-2017 NVIDIA Corporation. All rights reserved.
00027 // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
00028 // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
00029 
00030 
00031 #ifndef PX_PHYSICS_NX_MESHSCALE
00032 #define PX_PHYSICS_NX_MESHSCALE
00033 
00037 #include "common/PxPhysXCommonConfig.h"
00038 #include "foundation/PxMat33.h"
00039 #include "foundation/PxAssert.h"
00040 
00043 #define PX_MESH_SCALE_MIN 1e-6f
00044 
00047 #define PX_MESH_SCALE_MAX 1e6f
00048 
00049 #if !PX_DOXYGEN
00050 namespace physx
00051 {
00052 #endif
00053 
00068 class PxMeshScale
00069 {
00070 //= ATTENTION! =====================================================================================
00071 // Changing the data layout of this class breaks the binary serialization format.  See comments for 
00072 // PX_BINARY_SERIAL_VERSION.  If a modification is required, please adjust the getBinaryMetaData 
00073 // function.  If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
00074 // accordingly.
00075 //==================================================================================================
00076 public:
00080     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale(): scale(1.0f), rotation(PxIdentity) 
00081     {
00082     }
00083 
00087     explicit PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale(PxReal r): scale(r), rotation(PxIdentity) 
00088     {
00089     }
00090 
00094     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale(const PxVec3& s)
00095     {
00096         scale = s;
00097         rotation = PxQuat(PxIdentity);
00098     }
00099 
00103     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale(const PxVec3& s, const PxQuat& r)
00104     {
00105         PX_ASSERT(r.isUnit());
00106         scale = s;
00107         rotation = r;
00108     }
00109 
00110 
00114     PX_CUDA_CALLABLE PX_FORCE_INLINE bool isIdentity()  const
00115     {
00116         return (scale.x == 1.0f && scale.y == 1.0f && scale.z == 1.0f);
00117     }
00118 
00122     PX_CUDA_CALLABLE PX_FORCE_INLINE  PxMeshScale getInverse() const 
00123     {
00124         return PxMeshScale(PxVec3(1.0f/scale.x, 1.0f/scale.y, 1.0f/scale.z), rotation);
00125     }
00126 
00130     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMat33 toMat33() const 
00131     {
00132         PxMat33 rot(rotation);
00133         PxMat33 trans = rot.getTranspose();
00134         trans.column0 *= scale[0];
00135         trans.column1 *= scale[1];
00136         trans.column2 *= scale[2];
00137         return trans * rot;
00138     }
00139 
00143     PX_CUDA_CALLABLE PX_FORCE_INLINE bool hasNegativeDeterminant() const
00144     {
00145         return (scale.x * scale.y * scale.z < 0.0f);
00146     }
00147 
00148     PxVec3      transform(const PxVec3& v) const
00149     {
00150         return rotation.rotateInv(scale.multiply(rotation.rotate(v)));
00151     }
00152 
00153     bool        isValidForTriangleMesh() const
00154     {
00155         PxVec3 absXYZ = scale.abs();
00156         return (absXYZ.maxElement() <= PX_MESH_SCALE_MAX) && (absXYZ.minElement() >= PX_MESH_SCALE_MIN);
00157     }
00158 
00159     bool        isValidForConvexMesh() const
00160     {
00161         return (scale.maxElement() <= PX_MESH_SCALE_MAX) && (scale.minElement() >= PX_MESH_SCALE_MIN);
00162     }
00163 
00164     PxVec3      scale;      
00165     PxQuat      rotation;   
00166 
00167 
00168 };
00169 
00170 #if !PX_DOXYGEN
00171 } // namespace physx
00172 #endif
00173 
00175 #endif


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