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    return t * g_water_fog;
  21 }
  22
  23 void main()
  24 {
  25    vec3 halfview = normalize( uCamera - aWorldCo );
  26    float depth = water_depth( aWorldCo, halfview );
  27    FragColor = vec4( depth, 0.0, 0.0, 0.0 );
  28 }