From 36fb27a899045de24d71d55b06648abda7547268 Mon Sep 17 00:00:00 2001
From: Patrick
Date: Fri, 26 Mar 2021 19:11:29 +0100
Subject: pre cleanup

---
 shaders/ts_frag_irradiance.glsl | 61 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 shaders/ts_frag_irradiance.glsl

(limited to 'shaders/ts_frag_irradiance.glsl')

diff --git a/shaders/ts_frag_irradiance.glsl b/shaders/ts_frag_irradiance.glsl
new file mode 100644
index 0000000..b9e70ae
--- /dev/null
+++ b/shaders/ts_frag_irradiance.glsl
@@ -0,0 +1,61 @@
+#version 330 core
+
+in vec3 Normal;
+in vec3 FragPos;
+
+out vec4 FragColor;
+
+uniform vec3 lightPos;
+uniform vec3 lightColor;
+uniform vec3 objectColor;
+uniform vec3 viewPos;
+
+vec4 blur(sampler2D tex, vec2 uv, vec2 res) {
+  float Pi = 6.28318530718; // Pi*2
+    
+  // GAUSSIAN BLUR SETTINGS {{{
+  float Directions = 16.0; // BLUR DIRECTIONS (Default 16.0 - More is better but slower)
+  float Quality = 4.0; // BLUR QUALITY (Default 4.0 - More is better but slower)
+  float Size = 8.0; // BLUR SIZE (Radius)
+  // GAUSSIAN BLUR SETTINGS }}}
+  
+  vec2 Radius = Size/res;
+  
+  // Pixel colour
+  vec4 Color = texture(tex, uv);
+  
+  // Blur calculations
+  for( float d=0.0; d<Pi; d+=Pi/Directions) {
+    for(float i=1.0/Quality; i<=1.0; i+=1.0/Quality) {
+      Color += texture( tex, uv+vec2(cos(d),sin(d))*Radius*i);		
+    }
+  }
+  
+  // Output to screen
+  Color /= Quality * Directions - 15.0;
+  return Color;
+}
+
+void main()
+{
+  vec3 norm = normalize(Normal);
+  vec3 lightDir = normalize(lightPos - FragPos);
+
+  float diff = max(dot(norm, lightDir), 0.0);
+  vec3 diffuse = diff * lightColor;
+
+  float ambientStrength = 0.1;
+  vec3 ambient = ambientStrength * lightColor;
+
+  float specularStrength = 0.5;
+  vec3 viewDir = normalize(viewPos - FragPos);
+  vec3 reflectDir = reflect(-lightDir, norm);
+  float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32);
+  vec3 specular = specularStrength * spec * lightColor;
+
+  vec3 result = (ambient + diffuse) * objectColor;
+
+  result = vec3(length(FragPos - lightPos));
+    
+  FragColor = vec4(result, 1.0f);
+}
-- 
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