shaders/scene_depth.fs

   1 out vec4 FragColor;
   2
   3 uniform vec3 uCamera;
   4 uniform vec3 uBoard0;
   5 uniform vec3 uBoard1;
   6
   7 #include "light_clearskies_stddef.glsl"
   8 #include "common_scene.glsl"
   9
  10 // Water blending
  11 // ==============
  12
  13 float water_depth( vec3 pos, vec3 halfview )
  14 {
  15    vec3 pnorm = g_water_plane.xyz;
  16    float pdist = g_water_plane.w;
  17
  18    float d = dot( pnorm, halfview );
  19    float t = dot((pnorm*pdist - pos), pnorm) / d;
  20
  21    // TODO: Make g_water_fog a material param
  22    return t * g_water_fog;
  23 }
  24
  25 void main()
  26 {
  27    vec3 halfview = normalize( uCamera - aWorldCo );
  28    float depth = water_depth( aWorldCo, halfview );
  29    FragColor = vec4( depth, 0.0, 0.0, 0.0 );
  30 }