randomPoison

property surface_diffuse: Texture2d;
property surface_color: Color;
property surface_specular: Color;
property surface_shininess: f32;

program frag {
    // Calculate phong illumination.
    vec4 ambient = vec4(0.0, 0.0, 0.0, 1.0);
    vec4 diffuse = vec4(0.0, 0.0, 0.0, 1.0);
    vec4 specular = vec4(0.0, 0.0, 0.0, 1.0);