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compile-on-type · iTime · iResolution · iMouse

— fps

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precision highp float;

uniform float iTime;
uniform vec2  iResolution;
uniform vec4  iMouse;

void main () {
  vec2 uv = gl_FragCoord.xy / iResolution.xy;
  vec2 p = uv * 8.0 - 4.0;

  float v = sin(p.x + iTime);
  v += sin((p.y + iTime) * 0.7);
  v += sin((p.x + p.y + iTime) * 0.5);
  float cx = p.x + 2.0 * sin(iTime * 0.3);
  float cy = p.y + 2.0 * cos(iTime * 0.2);
  v += sin(sqrt(cx * cx + cy * cy + 1.0) + iTime);

  vec3 col = vec3(
    sin(v * 3.14159),
    sin(v * 3.14159 + 2.094),
    sin(v * 3.14159 + 4.188)
  );
  gl_FragColor = vec4(col * 0.5 + 0.5, 1.0);
}