shaders/common_scene.glsl

   1 // :D
   2
   3 #include "common_world.glsl"
   4
   5 vec3 scene_do_lighting( vec3 diffuse, vec3 wnormal )
   6 {
   7    // Lighting
   8    vec3 halfview = uCamera - aWorldCo;
   9    float fdist = length(halfview);
  10    halfview /= fdist;
  11
  12    vec3 total_light = newlight_compute_ambient();
  13
  14    // Compute world lighting contribution and apply it according to the
  15    // shadow map
  16    //
  17    vec3 world_light = newlight_compute_world_diffuse( wnormal );
  18    world_light += newlight_compute_sun_spec( wnormal, halfview, 0.1 );
  19
  20    float world_shadow = newlight_compute_sun_shadow();
  21
  22    total_light += world_light * world_shadow;
  23
  24    // Compute the other lights that exist in the map, not effected by the sun
  25    // shadow
  26    total_light += newlight_compute_quadratic
  27                   (
  28                      wnormal, halfview,
  29                      g_point_light_positions[ aLights.x ].xyz,
  30                      g_point_light_colours[ aLights.x ].rgb
  31                   );
  32    total_light += newlight_compute_quadratic
  33                   (
  34                      wnormal, halfview,
  35                      g_point_light_positions[ aLights.y ].xyz,
  36                      g_point_light_colours[ aLights.y ].rgb
  37                   );
  38    total_light += newlight_compute_quadratic
  39                   (
  40                      wnormal, halfview,
  41                      g_point_light_positions[ aLights.z ].xyz,
  42                      g_point_light_colours[ aLights.z ].rgb
  43                   );
  44
  45    return apply_fog( diffuse * total_light, fdist );
  46 }