From 0330dd5bd261912c49bfe1656436f5f16415ccc2 Mon Sep 17 00:00:00 2001
From: iurii <hello@jurip.xyz>
Date: Sat, 7 Sep 2024 22:04:05 +0300
Subject: upd

---
 res/shaders/colors.fs | 12 ++++++++++++
 src/main.odin         |  4 ++++
 2 files changed, 16 insertions(+)

diff --git a/res/shaders/colors.fs b/res/shaders/colors.fs
index 56762e1..142d843 100644
--- a/res/shaders/colors.fs
+++ b/res/shaders/colors.fs
@@ -6,6 +6,7 @@ struct Material {
   sampler2D diffuse;
   sampler2D specular;
   float shininess;
+
 };
 
 struct Light {
@@ -13,6 +14,10 @@ struct Light {
   vec3 ambient;
   vec3 diffuse;
   vec3 specular;
+
+  float constant;
+  float linear;
+  float quadratic;
 };
 
 in vec3 Normal;
@@ -39,6 +44,13 @@ void main() {
   float spec = pow(max(dot(view_dir, reflect_dir), 0.0), material.shininess);
   vec3 specular = light.specular * spec * texture(material.specular, TexCoords).rgb;
 
+  float distance = length(light.positon - FragPos);
+  float attenuation = 1.0 / (light.constant + light.linear * distance + light.quadratic * (distance * distance));
+
+  abient *= attenuation;
+  diffuse *= attenuation;
+  specular *= attenuation;
+
   vec3 result = ambient + diffuse + specular;
   FragColor = vec4(result, 1.0);
 }
diff --git a/src/main.odin b/src/main.odin
index db25478..eee26e2 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -206,6 +206,10 @@ main :: proc() {
 		shader_set_vec3(lighting_shader, cstring("light_position"), &light_pos)
 		shader_set_vec3(lighting_shader, cstring("view_position"), &camera.position)
 
+    shader_set_f32(lighting_shader, "light.constant", 1.0)
+    shader_set_f32(lighting_shader, "light.linear", 0.09)
+    shader_set_f32(lighting_shader, "light.qudratic", 0.032)
+
 		aspect: f32 = 800.0 / 600.0
 		projection := linalg.matrix4_perspective_f32(
 			linalg.to_radians(camera.zoom),
-- 
cgit 1.4.1-2-gfad0