PrusaSlicer-NonPlainar/resources/shaders/140/toolpaths_cog.fs

#version 140

const vec4 BLACK = vec4(vec3(0.1), 1.0);
const vec4 WHITE = vec4(vec3(1.0), 1.0);

const float emission_factor = 0.25;

uniform vec3 world_center;

// x = tainted, y = specular;
in vec2 intensity;
in vec3 world_position;

out vec4 out_color;

void main()
{
    vec3 delta = world_position - world_center;
    vec4 color = delta.x * delta.y * delta.z > 0.0 ? BLACK : WHITE;
    out_color = vec4(vec3(intensity.y) + color.rgb * (intensity.x + emission_factor), 1.0);
}