zcyemi
/ octahedral.shader
Created
January 25, 2025 08:06
— forked from pyalot/octahedral.shader
octahedral mapping
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| #define sectorize(value) step(0.0, (value))*2.0-1.0 | |
| #define sum(value) dot(clamp((value), 1.0, 1.0), (value)) | |
| #define PI 3.141592653589793 | |
| vec2 normalToUvRectOct(vec3 normal){ | |
| normal /= sum(abs(normal)); | |
| if(normal.y > 0.0){ | |
| return normal.xz*0.5+0.5; | |
| } | |
| else{ |