Fragment shader study #1

gistfile1.c

#ifdef GL_ES
precision mediump float;
#endif

uniform float time;
uniform vec2 resolution;

void main(void){
  vec2 position = (gl_FragCoord.xy / resolution.xy);
  float color = 0.0;
  
  color += sin(position.y * cos(time / 15.0) * sin(80.0 / time)) + cos(position.y * cos(time / 15.0) * 10.0);
  color += sin(position.y * sin(time / 10.0) * 40.0) + cos(position.x * cos(time / 25.0) * 40.0);
  color += sin(position.x * sin(time / position.x) * 10.0) + sin(position.x * sin(time/35.0) * 80.0);
  color *= sin(time/10.0) * 0.5;
  
  gl_FragColor = vec4(color * position.x,tan(color) / position.y, sin(color) * time,asin(time));
  

}