lygia/v1.1.4/sdf/raysSDF)Returns a sdf for rays with N branches
Dependencies:
Use:
raysSDF(<vec2> st, <int> N)
#ifndef FNC_RAYSSDF
#define FNC_RAYSSDF
float raysSDF(in vec2 st, in int N) {
st -= .5;
return fract(atan(st.y, st.x) / TAU * float(N));
}
#endif
Dependencies:
Use:
raysSDF(<float2> st, <int> N)
#ifndef FNC_RAYSSDF
#define FNC_RAYSSDF
float raysSDF(in float2 st, in int N) {
st -= .5;
return frac( atan2(st.y, st.x) / TAU * float(N));
}
#endif
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