feat(engine): add support for multiple point lights

1 files changed, 39 insertions, 0 deletions

diff --git a/engine/light.glsl b/engine/light.glsl
index e9b2a61..7516a58 100644
--- a/engine/light.glsl
+++ b/engine/light.glsl
@@ -73,4 +73,43 @@ float calc_attenuation(in PointLight point_light, in vec3 position)
 		* pow(light_distance, 2));
 }
 
+vec3 calc_point_light(
+	in PointLight light,
+	in vec3 frag_pos,
+	in vec3 normal,
+	in vec2 texture_coords,
+	in vec3 view_pos,
+	in Material material
+)
+{
+	vec3 light_direction = normalize(light.position - frag_pos);
+	vec3 norm = normalize(normal);
+
+	vec3 diffuse_light = calc_diffuse_light(
+		material,
+		light,
+		light_direction,
+		norm,
+		texture_coords
+	);
+
+	vec3 specular_light = calc_specular_light(
+		material,
+		light,
+		light_direction,
+		norm,
+		view_pos,
+		frag_pos,
+		texture_coords
+	);
+
+	float attenuation = calc_attenuation(light, frag_pos);
+
+	diffuse_light *= attenuation;
+	specular_light *= attenuation;
+
+	return diffuse_light + specular_light;
+}
+
+
 #endif