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

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+00026 // Copyright (c) 2008-2016 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_HEIGHTFIELD_GEOMETRY
+00032 #define PX_PHYSICS_NX_HEIGHTFIELD_GEOMETRY
+00033 
+00036 #include "geometry/PxTriangleMeshGeometry.h"
+00037 #include "common/PxCoreUtilityTypes.h"
+00038 
+00039 #if !PX_DOXYGEN
+00040 namespace physx
+00041 {
+00042 #endif
+00043 
+00044 #define PX_MIN_HEIGHTFIELD_XZ_SCALE 1e-8f
+00045 #define PX_MIN_HEIGHTFIELD_Y_SCALE (0.0001f / PxReal(0xFFFF))
+00046 
+00047 class PxHeightField;
+00048 
+00056 class PxHeightFieldGeometry : public PxGeometry 
+00057 {
+00058 public:
+00059     PX_INLINE PxHeightFieldGeometry() :     
+00060         PxGeometry      (PxGeometryType::eHEIGHTFIELD),
+00061         heightField     (NULL),
+00062         heightScale     (1.0f), 
+00063         rowScale        (1.0f), 
+00064         columnScale     (1.0f), 
+00065         heightFieldFlags(0)
+00066     {}
+00067 
+00068     PX_INLINE PxHeightFieldGeometry(PxHeightField* hf,
+00069                                     PxMeshGeometryFlags flags, 
+00070                                     PxReal heightScale_,
+00071                                     PxReal rowScale_, 
+00072                                     PxReal columnScale_) :
+00073         PxGeometry          (PxGeometryType::eHEIGHTFIELD), 
+00074         heightField         (hf) ,
+00075         heightScale         (heightScale_), 
+00076         rowScale            (rowScale_), 
+00077         columnScale         (columnScale_), 
+00078         heightFieldFlags    (flags)
+00079         {
+00080         }
+00081 
+00092     PX_INLINE bool isValid() const;
+00093 
+00094 public:
+00098     PxHeightField*          heightField;
+00099 
+00103     PxReal                  heightScale;
+00104 
+00108     PxReal                  rowScale;
+00109 
+00113     PxReal                  columnScale;
+00114 
+00118     PxMeshGeometryFlags     heightFieldFlags;
+00119 
+00120     PxPadding<3>            paddingFromFlags;   
+00121 };
+00122 
+00123 
+00124 PX_INLINE bool PxHeightFieldGeometry::isValid() const
+00125 {
+00126     if (mType != PxGeometryType::eHEIGHTFIELD)
+00127         return false;
+00128     if (!PxIsFinite(heightScale) || !PxIsFinite(rowScale) || !PxIsFinite(columnScale))
+00129         return false;
+00130     if (rowScale < PX_MIN_HEIGHTFIELD_XZ_SCALE || columnScale < PX_MIN_HEIGHTFIELD_XZ_SCALE || heightScale < PX_MIN_HEIGHTFIELD_Y_SCALE)
+00131         return false;
+00132     if (!heightField)
+00133         return false;
+00134 
+00135     return true;
+00136 }
+00137 
+00138 #if !PX_DOXYGEN
+00139 } // namespace physx
+00140 #endif
+00141 
+00143 #endif
+