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更新pow22算法

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hyzboy 2020-01-20 17:05:13 +08:00
parent e2cf0d6041
commit 8f024e1598
1 changed files with 2 additions and 4 deletions
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6
inc/hgl/math/FastTriangle.h
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@ -22,12 +22,10 @@ namespace hgl
/** /**
* 近似Pow2.2，使用此函数等于pow(x,2.2) * 近似Pow2.2，使用此函数等于pow(x,2.2)
* The MIT License
* Copyright © 2019 Inigo Quilez
*/ */
double inline ApproxPow22(double x) double inline LPow22(double x)
{ {
return ((exp2(x)-1.0)-x*0.693147)*3.258891; return x*(1.12*x - 0.12);
} }
}//namespace hgl }//namespace hgl
#endif//HGL_ALGORITHM_MATH_FAST_TRIANGLE_FUNCTION_INCLUDE #endif//HGL_ALGORITHM_MATH_FAST_TRIANGLE_FUNCTION_INCLUDE