lygia/v1.1.6/space/xyz2equirect)3D vector to equirect 2D projection
Dependencies:
Use:
<vec2> xyz2equirect(<vec2> d)
#ifndef FNC_XYZ2EQUIRECT
#define FNC_XYZ2EQUIRECT
vec2 xyz2equirect(vec3 d) {
return vec2(atan(d.z, d.x) + PI, acos(-d.y)) / vec2(2.0 * PI, PI);
}
#endif
Dependencies:
Use:
<float2> xyz2equirect(<float2> d)
#ifndef FNC_XYZ2EQUIRECT
#define FNC_XYZ2EQUIRECT
float2 xyz2equirect(float3 d) {
return float2(atan(d.z, d.x) + PI, acos(-d.y)) / float2(TAU, PI);
}
#endif
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