shaders/scene_override.fs

   1 uniform sampler2D uTexGarbage;
   2 uniform sampler2D uTexMain;
   3 uniform vec3 uCamera;
   4 uniform vec4 uPlane;
   5
   6 uniform vec4 uPlayerPos;
   7 uniform vec4 uSpawnPos;
   8
   9 #include "common_scene.glsl"
  10 #include "motion_vectors_fs.glsl"
  11
  12 vec2 smin( float a, float b, float k )
  13 {
  14    float h = max( k-abs(a-b), 0.0 )/k;
  15    float m = h*h*0.5;
  16    float s = m*k*(1.0/2.0);
  17
  18    if( a < b )
  19       return vec2(a-s,m);
  20    else
  21       return vec2(b-s,1.0-m);
  22 }
  23
  24 void main()
  25 {
  26    vec2 ssuv = gl_FragCoord.xy;
  27    vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );
  28    float dither = fract( vDither.g / 71.0 ) - 0.5;
  29
  30    if( (aWorldCo.y*0.1 + dither) > ((uPlayerPos.y+40.0)*0.1) )
  31       discard;
  32
  33    compute_motion_vectors();
  34
  35    vec3 vfrag = vec3(0.5,0.5,0.5);
  36    vec3 qnorm = aNorm.xyz;
  37
  38    if( !gl_FrontFacing ){
  39       qnorm *= -1.0;
  40    }
  41
  42    vfrag = scene_compute_lighting( vfrag, qnorm, aWorldCo );
  43
  44    float d0 = distance( aWorldCo, uPlayerPos.xyz )*2.0;
  45    float d1 = distance( aWorldCo, uSpawnPos.xyz );
  46
  47    vec2 dm = smin( d0, d1, 10.0 );
  48    float dd = fract(dm.x*0.2-g_realtime*0.5)*max(0.0,1.0-dm.x*0.04)*max(0.0,qnorm.y);
  49
  50    vec3 emit = mix(vec3(1.0,0.0,0.0),vec3(0.0,1.0,0.0),dm.y)*dd;
  51
  52
  53
  54
  55    vec3 v0 = normalize(uSpawnPos.xyz-uPlayerPos.xyz);
  56    float t = min(max(dot(aWorldCo-uPlayerPos.xyz,v0),0.0),
  57    distance(uSpawnPos.xyz,uPlayerPos.xyz));
  58
  59    vec3 p0 = uPlayerPos.xyz + v0*t;
  60    float d3 = distance(p0,aWorldCo);
  61
  62    float lp = fract(t*0.2-g_realtime+d3*0.2)*max(0.0,1.0-d3*0.2);
  63
  64    emit += vec3(lp);
  65
  66    oColour = vec4( vfrag+emit, 1.0 );
  67 }