shaders/gate_lq.fs

   1 out vec4 FragColor;
   2
   3 uniform float uTime;
   4 uniform vec3 uCam;
   5 uniform vec2 uInvRes;
   6
   7 in vec3 aNorm;
   8 in vec2 aUv;
   9 in vec3 aCo;
  10
  11 void main()
  12 {
  13    vec2 ssuv = gl_FragCoord.xy;
  14    float opacity = 1.0-smoothstep(0.4,1.0,aUv.y);
  15
  16    vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );
  17    float dither = fract( vDither.g / 71.0 ) - 0.5;
  18
  19    if( opacity+dither<0.5 )
  20       discard;
  21
  22    FragColor = vec4( 0.0, 1.0, 0.0, 1.0 );
  23 }