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00021 // This code supersedes and replaces all information previously supplied.
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00026 // Copyright (c) 2008-2012 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/PxPhysXCommon.h"
00038 #include "foundation/PxMat33.h"
00039 
00040 #ifndef PX_DOXYGEN
00041 namespace physx
00042 {
00043 #endif
00044 
00054 class PxMeshScale
00055 {
00056 public:
00060     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale(): scale(PxVec3(1.0f, 1.0f, 1.0f)), rotation(PxQuat::createIdentity()) 
00061     {
00062     }
00063 
00067     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale(const PxVec3& s, const PxQuat& r)
00068     {
00069         PX_ASSERT(r.isUnit());
00070         scale = s;
00071         rotation = r;
00072     }
00073 
00074 
00078     PX_CUDA_CALLABLE PX_FORCE_INLINE bool isIdentity()  const
00079     {
00080         return (scale.x == 1.0f && scale.y == 1.0f && scale.z == 1.0f);
00081     }
00082 
00086     PX_CUDA_CALLABLE PX_FORCE_INLINE  PxMeshScale getInverse() const 
00087     {
00088         return PxMeshScale(PxVec3(1.0f/scale.x, 1.0f/scale.y, 1.0f/scale.z), rotation);
00089     }
00090 
00094     static PX_CUDA_CALLABLE PX_FORCE_INLINE PxMeshScale createIdentity()
00095     {
00096         return PxMeshScale(PxVec3(1.0f, 1.0f, 1.0f),PxQuat::createIdentity());
00097     }
00098 
00102     PX_CUDA_CALLABLE PX_FORCE_INLINE PxMat33 toMat33() const 
00103     {
00104         PxMat33 rot(rotation);
00105         PxMat33 trans = rot.getTranspose();
00106         trans.column0 *= scale[0];
00107         trans.column1 *= scale[1];
00108         trans.column2 *= scale[2];
00109         return trans * rot;
00110     }
00111 
00112 
00113     PxVec3      scale;      
00114     PxQuat      rotation;   
00115 };
00116 
00117 #ifndef PX_DOXYGEN
00118 } // namespace physx
00119 #endif
00120 
00122 #endif