shaders/planeinf.fs

   1 #include "water_ref.glsl"
   2
   3 out vec4 FragColor;
   4
   5 uniform vec3 uCamera;
   6 uniform vec4 uPlane;
   7
   8 in vec4 aColour;
   9 in vec2 aUv;
  10 in vec3 aNorm;
  11 in vec3 aCo;
  12
  13 float ray_plane( vec3 pos, vec3 dir, vec4 plane )
  14 {
  15    float d = dot( plane.xyz, dir );
  16    float t = dot((plane.xyz*plane.w - pos),plane.xyz) / d;
  17    return t;
  18 }
  19
  20 void main()
  21 {
  22    float fdist = ray_plane( uCamera, -aNorm, uPlane );
  23    vec3 world_pos = uCamera - aNorm*fdist;
  24
  25    FragColor = vec4(fract(world_pos*0.1),1.0);
  26 }