17 lines
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366 B
GLSL
17 lines
No EOL
366 B
GLSL
#include "const.glsl"
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/*
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contributors: Inigo Quiles
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description: A band-limited variant of cos(x) which reduces aliasing at high frequencies. From https://iquilezles.org/articles/bandlimiting/
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use: fcos(<float> value)
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*/
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#ifndef FNC_FCOS
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#define FNC_FCOS
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float fcos(in float x){
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float w = fwidth(x);
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return cos(x) * smoothstep( TWO_PI, 0.0, w );
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}
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#endif |