shaders/model_gate_unlinked.fs

   1 out vec4 FragColor;
   2
   3 uniform float uTime;
   4 uniform vec3 uCam;
   5 uniform vec4 uColour;
   6
   7 in vec3 aNorm;
   8 in vec2 aUv;
   9 in vec3 aCo;
  10
  11 #include "motion_vectors_fs.glsl"
  12
  13 const int NOISE_LOOP = 3;
  14 vec3 digital_noise( uvec3 iuv ){
  15    iuv *=uvec3(8,2524,7552);
  16    for( int i=0; i<NOISE_LOOP; i++ )
  17       iuv += (iuv.yzx<<2) ^ (iuv.yxz)+iuv.z;
  18    return vec3(iuv)*(1.0/float(0xffffffffU));
  19 }
  20
  21 vec2 rand_hash22( vec2 p ){
  22    vec3 p3 = fract(vec3(p.xyx) * 213.8976123);
  23    p3 += dot(p3, p3.yzx+19.19);
  24    return fract(vec2((p3.x + p3.y)*p3.z, (p3.x+p3.z)*p3.y));
  25 }
  26
  27 void main(){
  28    compute_motion_vectors();
  29
  30    vec2 ssuv = gl_FragCoord.xy;
  31    float grad = 1.0-aUv.y*0.1;
  32    float opacity = rand_hash22( vec2(floor(aUv.y*100.0),floor(aCo.z*10.0+uTime*40.0)) ).r*grad;
  33
  34    vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );
  35    float dither = fract( vDither.g / 71.0 ) - 0.5;
  36
  37    if( opacity<0.9 )
  38       discard;
  39
  40    FragColor = vec4(0.7,0.5,0.5,1.0);
  41 }