lygia/sdf/hexPrismSDF)generate the SDF of a hexagonal prism
Use:
<float> hexPrismSDF( in <vec3> pos, in <vec2> h )
#ifndef FNC_HEXPRISMSDF
#define FNC_HEXPRISMSDF
float hexPrismSDF( vec3 p, vec2 h ) {
vec3 q = abs(p);
float d1 = q.z-h.y;
float d2 = max((q.x*0.866025+q.y*0.5),q.y)-h.x;
return length(max(vec2(d1,d2),0.0)) + min(max(d1,d2), 0.);
}
#endif
Use:
<float> hexPrismSDF( in <float3> pos, in <float2> h )
#ifndef FNC_HEXPRISMSDF
#define FNC_HEXPRISMSDF
float hexPrismSDF( float3 p, float2 h ) {
float3 q = abs(p);
float d1 = q.z-h.y;
float d2 = max((q.x*0.866025+q.y*0.5),q.y)-h.x;
return length(max(float2(d1,d2),0.0)) + min(max(d1,d2), 0.);
}
#endif
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