lygia/space/center)It center the coordinates from 0 to 1 to -1 to 1 So the center goes from 0.5 to 0.0.
Use:
<float|vec2|vec3> center(<float|vec2|vec3> st)
#ifndef FNC_CENTER
#define FNC_CENTER
float center(float x) { return x * 2.0 - 1.0; }
vec2 center(vec2 v) { return v * 2.0 - 1.0; }
vec3 center(vec3 v) { return v * 2.0 - 1.0; }
#endif
Use:
<float|float2|float3> center(<float|float2|float3> st)
#ifndef FNC_CENTER
#define FNC_CENTER
float center(float x) { return x * 2.0 - 1.0; }
float2 center(float2 st) { return st * 2.0 - 1.0; }
float3 center(float3 pos) { return pos * 2.0 - 1.0; }
#endif
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