Shadertoy
4 Jul 2019 ... vec3 getnormal(vec3 p){. 33. vec2 e =vec2(0.001,0.0);. 34. return normalize(vec3 (. 35. dist(p+e.xyy)-dist(p-e.xyy),. 36. dist(p+e.yxy)-dist(p-e.yxy) ...
4 Jul 2019 ... vec3 getnormal(vec3 p){. 33. vec2 e =vec2(0.001,0.0);. 34. return normalize(vec3 (. 35. dist(p+e.xyy)-dist(p-e.xyy),. 36. dist(p+e.yxy)-dist(p-e.yxy) ...