96.frag

uniform float time;
uniform vec2 resolution;
out vec4 fragColor;

void main() {
  vec2 st = gl_FragCoord.xy / resolution.xy;
  st = st * 1. - 0.5;
  st.y *= resolution.y / resolution.x;
  vec3 col = vec3(0.0);
  col.r = length(abs(st) - sin(time * 2.0) * 0.2);
  col.g = length(abs(st) - cos(time * 2.1) * 0.16);
  col.b = length(abs(st) + sin(time * 2.2) * 0.12);
  col = mod(col * 15.0, 1.8);
  fragColor = TDOutputSwizzle(vec4(col, 1.0));
}