PxSDFDesc.h

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#ifndef PX_SDF_DESC_H
#define PX_SDF_DESC_H
#include "PxPhysXConfig.h"
#include "geometry/PxSimpleTriangleMesh.h"
#include "foundation/PxBounds3.h"
 
#if !PX_DOXYGEN
namespace physx
{
#endif
 
    struct PxDim3
    {
        PxU32 x, y, z;
    };
 
    class PxSdfBitsPerSubgridPixel
    {
    public:
        enum Enum
        {
            e8_BIT_PER_PIXEL = 1,   
            e16_BIT_PER_PIXEL = 2,  
            e32_BIT_PER_PIXEL = 4   
        };
    };
 
    class PxSDFDesc
    {
    public:
 
        PxBoundedData sdf;
 
        PxDim3 dims;
 
        PxVec3 meshLower;
 
        PxReal spacing;
 
        
        PxU32 subgridSize;
        
        PxSdfBitsPerSubgridPixel::Enum bitsPerSubgridPixel;
        
        PxDim3 sdfSubgrids3DTexBlockDim;
        
        PxBoundedData sdfSubgrids;
        
        PxBoundedData sdfStartSlots;
 
        PxReal subgridsMinSdfValue;
 
        PxReal subgridsMaxSdfValue;
 
        PxBounds3 sdfBounds;
 
        PxReal narrowBandThicknessRelativeToSdfBoundsDiagonal;
 
        PxU32 numThreadsForSdfConstruction;
 
        PX_INLINE PxSDFDesc();
 
        PX_INLINE bool isValid() const;
    };
 
    PX_INLINE PxSDFDesc::PxSDFDesc()
    {
        sdf.data = NULL;
        dims.x = 0;
        dims.y = 0;
        dims.z = 0;
        spacing = 0;
        meshLower = PxVec3(PxZero);
        subgridSize = 0;
        subgridsMinSdfValue = 0.0f;
        subgridsMaxSdfValue = 0.0f;
        sdfBounds = PxBounds3::empty();
        bitsPerSubgridPixel = PxSdfBitsPerSubgridPixel::e16_BIT_PER_PIXEL;
        narrowBandThicknessRelativeToSdfBoundsDiagonal = 0.01f;
        numThreadsForSdfConstruction = 1;
    }
 
    PX_INLINE bool PxSDFDesc::isValid() const
    {
        // Check validity of user's input(if any)
        if (sdf.data)
        {
            if (dims.x < 1 || dims.y < 1 || dims.z < 1)
                return false;
            if (!meshLower.isFinite())
                return false;
            if (spacing <= 0)
                return false;
        }
 
        return true;
    }
 
#if !PX_DOXYGEN
} // namespace physx
#endif
 
#endif