From 7ebe34e95cffa9ac038ec5dccc530953ad988424 Mon Sep 17 00:00:00 2001
From: fredb <fredb>
Date: Sun, 28 Mar 2010 17:20:04 +0000
Subject: [PATCH] Put the color of night lighting in a uniform

---
 Effects/urban.eff  | 5 +++++
 Shaders/urban.frag | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Effects/urban.eff b/Effects/urban.eff
index 19fbf7e22..3e71ec3a4 100644
--- a/Effects/urban.eff
+++ b/Effects/urban.eff
@@ -107,6 +107,11 @@
         <type>float</type>
         <value type="float">2000.0</value>
       </uniform>
+      <uniform>
+        <name>night_color</name>
+        <type>float-vec3</type>
+        <value type="vec3d">0.75 0.59 0.05</value>
+      </uniform>
     </pass>
   </technique>
 </PropertyList>
diff --git a/Shaders/urban.frag b/Shaders/urban.frag
index 7458971d7..b471c6322 100644
--- a/Shaders/urban.frag
+++ b/Shaders/urban.frag
@@ -17,6 +17,7 @@ uniform sampler2D BaseTex;
 uniform sampler2D NormalTex;
 uniform float depth_factor;
 uniform float tile_size;
+uniform vec3 night_color;
 
 const float zFar = 120000.0;
 const float zNear = 100.0;
@@ -94,7 +95,7 @@ void main (void)
 	float emission_factor = (1.0 - smoothstep(0.15, 0.25, reflectance)) * emis;
 	vec4 tc = texture2D(BaseTex, uv);
 	emission_factor *= 0.5*pow(tc.r+0.8*tc.g+0.2*tc.b, 2) -0.2;
-	ambient_light += (emission_factor * vec4(0.75, 0.59, 0.05, 0.0));
+	ambient_light += (emission_factor * vec4(night_color, 0.0));
 
 	vec4 finalColor = texture2D(BaseTex, uv) * ambient_light;