Support multiple lights in a single pass

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

diff --git a/shaderlib/cooktorrance.glsl b/shaderlib/cooktorrance.glsl
index 4b0c4dc814ca5b16e903d7003f1371b96b3c6503..7eefbf60eb52e96a9ab320e6c9c42e1ccc4d1e40 100644 (file)
--- a/shaderlib/cooktorrance.glsl
+++ b/shaderlib/cooktorrance.glsl
@@ -151,10 +151,14 @@ vec3 cooktorrance_environment(vec3 normal, vec3 look, vec3 base_color, float met
 
 vec3 cooktorrance_lighting(vec3 normal, vec3 look, vec3 base_color, float metalness, float roughness)
 {
-       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;
+       vec3 color = vec3(0.0);
+       for(int i=0; i<max_lights; ++i)
+               if(light_sources[i].enabled!=0)
+               {
+                       vec3 light = get_light_direction(i);
+                       float shadow = get_shadow_factor(i);
+                       color += cooktorrance_one_light_direct(normal, look, light, light_sources[i].color, base_color, metalness, roughness)*shadow;
+               }
 
        color += cooktorrance_environment(normal, look, base_color, metalness, roughness);