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Exposed linear and bilinear interpolation, in addition to trilinear.

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Moved them somewhere publically accessable.
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unknown
2012-11-02 16:34:31 +01:00
parent 787b5c6928
commit e93d568cb4
4 changed files with 85 additions and 27 deletions
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25
library/PolyVoxCore/include/PolyVoxImpl/Utility.h
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@ -32,31 +32,6 @@ namespace PolyVox
{
POLYVOX_API uint8_t logBase2(uint32_t uInput);
POLYVOX_API bool isPowerOf2(uint32_t uInput);
template <typename Type>
Type trilinearlyInterpolate(
const Type& v000,const Type& v100,const Type& v010,const Type& v110,
const Type& v001,const Type& v101,const Type& v011,const Type& v111,
const float x, const float y, const float z)
{
assert((x >= 0.0f) && (y >= 0.0f) && (z >= 0.0f) &&
(x <= 1.0f) && (y <= 1.0f) && (z <= 1.0f));
//Interpolate along X
Type v000_v100 = (v100 - v000) * x + v000;
Type v001_v101 = (v101 - v001) * x + v001;
Type v010_v110 = (v110 - v010) * x + v010;
Type v011_v111 = (v111 - v011) * x + v011;
//Interpolate along Y
Type v000_v100__v010_v110 = (v010_v110 - v000_v100) * y + v000_v100;
Type v001_v101__v011_v111 = (v011_v111 - v001_v101) * y + v001_v101;
//Interpolate along Z
Type v000_v100__v010_v110____v001_v101__v011_v111 = (v001_v101__v011_v111 - v000_v100__v010_v110) * z + v000_v100__v010_v110;
return v000_v100__v010_v110____v001_v101__v011_v111;
}
}
#endif