iridescence.frag
01  precision highp float;
02  uniform vec2 u_resolution;
03  uniform float u_fresnel;
04  vec3 oil(vec3 n, vec3 v) {
05    float rim = pow(1.0 - dot(n, v), 3.0);
06    return mix(violet, cyan, rim);
07  }
08  float scene(vec3 p) {
09    return length(p) - 0.72;
10  }
11  vec3 normal = estimateNormal(ray);
12  gl_FragColor = vec4(oil(normal, view), 1.0);
13  bloom += rim * 0.38;
14  resolve(buffer, tonemap);
raymarch
void black
fresnel
glsl

Math Emits Light

A black-canvas studio identity for live shader work: sparse type, code artifacts, and oil-slick color only at the computed edge.

canvaspure black

edge colorviolet cyan pink

voicemonospace overlay