feat(engine): add materials

1 files changed, 25 insertions, 10 deletions

diff --git a/engine/light.glsl b/engine/light.glsl
index 3f1c601..0ceac16 100644
--- a/engine/light.glsl
+++ b/engine/light.glsl
@@ -1,18 +1,33 @@
 #version 330 core
 
-uniform vec3 light_color;
-uniform vec3 light_pos;
-
-uniform float ambient_light_strength;
-uniform float specular_light_strength;
-
-uniform uint specular_shininess;
+struct Material {
+    vec3 ambient;
+    vec3 diffuse;
+    vec3 specular;
+    float shininess;
+}; 
+
+struct Light {
+	vec3 position;
+
+    vec3 ambient;
+    vec3 diffuse;
+    vec3 specular;
+}; 
+  
+uniform Material material;
+uniform Light light;
+
+vec3 calc_ambient_light()
+{
+	return light.ambient * material.ambient;
+}
 
 vec3 calc_diffuse_light(in vec3 light_dir, in vec3 norm)
 {
 	float diff = max(dot(norm, light_dir), 0.0);
 
-	return diff * light_color;
+	return light.diffuse * (diff * material.diffuse);
 }
 
 vec3 calc_specular_light(
@@ -27,8 +42,8 @@ vec3 calc_specular_light(
 	vec3 reflect_direction = reflect(-light_dir, norm);
 	
 	float spec =
-		pow(max(dot(view_direction, reflect_direction), 0.0), specular_shininess);
+		pow(max(dot(view_direction, reflect_direction), 0.0), material.shininess);
 
-	return specular_light_strength * spec * light_color;
+	return light.specular * (spec * material.specular);
 }