Move lighting calculations to world space

[libs/gl.git] / shaderlib / cooktorrance.glsl

diff --git a/shaderlib/cooktorrance.glsl b/shaderlib/cooktorrance.glsl
index 2a03e2c51c049095ca23a23dbefbdc432e2d40e0..8e95752f7d6dc71b6e8e8fcc942ff2b3da518743 100644 (file)
--- a/shaderlib/cooktorrance.glsl
+++ b/shaderlib/cooktorrance.glsl
@@ -133,11 +133,7 @@ vec3 cooktorrance_one_light_direct(vec3 normal, vec3 look, vec3 light, vec3 ligh
 
 vec3 cooktorrance_lighting(vec3 normal, vec3 look, vec3 base_color, float metalness, float roughness)
 {
-       vec3 light;
-       if(use_normal_map)
-               light = normalize(tbn_light_dir);
-       else
-               light = normalize(eye_light_dir);
+       vec3 light = normalize(world_light_dir);
 
        float shadow = get_shadow_factor(0);
        vec3 color = cooktorrance_one_light_direct(normal, look, light, light_sources[0].color, base_color, metalness, roughness)*shadow;
@@ -152,18 +148,8 @@ vec3 cooktorrance_lighting(vec3 normal, vec3 look, vec3 base_color, float metaln
 
 void main()
 {
-       vec3 normal;
-       vec3 look;
-       if(use_normal_map)
-       {
-               normal = get_fragment_normal();
-               look = normalize(tbn_look_dir);
-       }
-       else
-       {
-               normal = normalize(eye_normal);
-               look = normalize(eye_look_dir);
-       }
+       vec3 normal = get_fragment_normal();
+       vec3 look = normalize(world_look_dir);
 
        vec4 base_color = get_base_color();
        float metalness = get_metalness_value();