From 783b308990e7c4ef0837a102a138778f73e4d2b7 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Sun, 15 Feb 2015 15:23:19 -0500
Subject: Added bloom!

---
 shaders/final.fragment | 50 +++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 43 insertions(+), 7 deletions(-)

(limited to 'shaders/final.fragment')

diff --git a/shaders/final.fragment b/shaders/final.fragment
index c900973..5feccb9 100644
--- a/shaders/final.fragment
+++ b/shaders/final.fragment
@@ -1,7 +1,10 @@
 #version 330 core
 
 in vec2 UV;
-in vec3 norm;
+in vec3 normIn;
+in vec3 camDirIn;
+in vec3 lightDirIn;
+//in vec3 vertPos;
 
 out vec3 color;
 
@@ -10,20 +13,19 @@ uniform sampler2D scanlinestex;
 
 const vec2 UVScalar = vec2(1.0, 1.0);
 const vec2 UVOffset = vec2(0.0, 0.0);
-const vec2 CRTMask_Scale = vec2(85.0, 153.6);
+const vec2 CRTMask_Scale = vec2(85.0, 153.6)*4.0;
 const vec2 CRTMask_Offset = vec2(0.0, 0.0);
 const float Tuning_Overscan = 1.0;
-const float Tuning_Dimming = 0.5;
+const float Tuning_Dimming = 0.0;
 const float Tuning_Satur = 1.35;
 const float Tuning_ReflScalar = 0.3;
-const float Tuning_Barrel = 0.12;
-const float Tuning_Scanline_Brightness = 0.25;
+const float Tuning_Barrel = 0; //0.12;
+const float Tuning_Scanline_Brightness = 0.5;
 const float Tuning_Scanline_Opacity = 0.5;
 const float Tuning_Diff_Brightness = 0.5;
 const float Tuning_Spec_Brightness = 0.35;
 const float Tuning_Spec_Power = 50.0;
 const float Tuning_Fres_Brightness = 1.0;
-const vec3 Tuning_LightPos = vec3(5.0, -10.0, 0.0);
 
 vec4 sampleCRT(vec2 uv)
 {
@@ -52,5 +54,39 @@ vec4 sampleCRT(vec2 uv)
 
 void main()
 {
-  color = sampleCRT(UV).rgb;
+  vec3 norm = normalize(normIn);
+  vec3 camDir = normalize(camDirIn);
+  vec3 lightDir = normalize(lightDirIn);
+  //vec3 refl = reflect(camDir, normIn);
+  
+  float diffuse = clamp(dot(norm, lightDir), 0.0f, 1.0f);
+  vec4 colordiff = vec4(0.175, 0.15, 0.2, 1) * diffuse * Tuning_Diff_Brightness;
+  
+  vec3 halfVec = normalize(lightDir + camDir);
+  float spec = clamp(dot(norm, halfVec), 0.0f, 1.0f);
+  spec = pow(spec, Tuning_Spec_Power);
+  vec4 colorspec = vec4(0.25, 0.25, 0.25, 1) * spec * Tuning_Spec_Brightness;
+  
+  float fres = 1.0f - dot(camDir, norm);
+  fres = (fres*fres) * Tuning_Fres_Brightness;
+  vec4 colorfres = vec4(0.45, 0.4, 0.5, 1) * fres;/*
+  
+  float lambertian = max(dot(camDirNorm,norm),0.0);
+  vec4 colorspec = vec4(0.0);
+  vec4 colorfres = vec4(0.0);
+  vec4 colordiff = vec4(0.175,0.15,0.2,1) * lambertian * Tuning_Diff_Brightness;
+  if (lambertian > 0.0)
+  {
+    vec3 viewDir = normalize(-vertPos);
+    vec3 halfDir = normalize(camDirNorm + viewDir);
+    float specAngle = max(dot(halfDir, normnorm), 0.0);
+    colorspec = vec4(0.25,0.25,0.25,1) * pow(specAngle, Tuning_Spec_Power) * Tuning_Spec_Brightness;
+  }*/
+  
+  vec4 emissive = sampleCRT(UV);
+  
+  vec4 nearfinal = colorfres + colordiff + colorspec + emissive;
+  vec4 final = nearfinal * mix(vec4(1,1,1,1), vec4(0,0,0,0), Tuning_Dimming);
+  
+  color = final.rgb;
 }
-- 
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