From 3f3a9ece007653a7b36eb25d0e18ee8ecd8a5782 Mon Sep 17 00:00:00 2001
From: Frederic Bouvier <fredfgfs01@free.fr>
Date: Wed, 4 Apr 2012 22:26:03 +0200
Subject: [PATCH] Rembrandt: Put the ambient pass effect in fgdata

---
 Effects/ambient.eff  | 66 ++++++++++++++++++++++++++++++++++++++++++++
 Shaders/ambient.frag | 15 ++++++++++
 Shaders/ambient.vert |  4 +++
 3 files changed, 85 insertions(+)
 create mode 100644 Effects/ambient.eff
 create mode 100644 Shaders/ambient.frag
 create mode 100644 Shaders/ambient.vert

diff --git a/Effects/ambient.eff b/Effects/ambient.eff
new file mode 100644
index 000000000..2c45a8d2a
--- /dev/null
+++ b/Effects/ambient.eff
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PropertyList>
+	<name>Effects/ambient</name>
+	<technique n="11">
+		<pass>
+			<lighting>false</lighting>
+			<depth>
+				<enabled>false</enabled>
+			</depth>
+			<render-bin>
+				<bin-number>0</bin-number>
+				<bin-name>RenderBin</bin-name>
+			</render-bin>
+			<texture-unit>
+				<unit>0</unit>
+				<type>depth-buffer</type>
+			</texture-unit>
+			<texture-unit>
+				<unit>1</unit>
+				<type>normal-buffer</type>
+			</texture-unit>
+			<texture-unit>
+				<unit>2</unit>
+				<type>diffuse-buffer</type>
+			</texture-unit>
+			<texture-unit>
+				<unit>3</unit>
+				<type>spec-emis-buffer</type>
+			</texture-unit>
+			<program>
+				<vertex-shader>Shaders/ambient.vert</vertex-shader>
+				<fragment-shader>Shaders/ambient.frag</fragment-shader>
+			</program>
+			<uniform>
+				<name>depth_tex</name>
+				<type>sampler-2d</type>
+				<value type="int">0</value>
+			</uniform>
+			<uniform>
+				<name>normal_tex</name>
+				<type>sampler-2d</type>
+				<value type="int">1</value>
+			</uniform>
+			<uniform>
+				<name>color_tex</name>
+				<type>sampler-2d</type>
+				<value type="int">2</value>
+			</uniform>
+			<uniform>
+				<name>spec_emis_tex</name>
+				<type>sampler-2d</type>
+				<value type="int">3</value>
+			</uniform>
+			<!-- The following uniforms are automatically defined and initialized :
+				- fg_SunAmbientColor
+				- fg_SunDiffuseColor
+				- fg_SunSpecularColor
+				- fg_SunDirection
+				- fg_ProjectionMatrixInverse
+				- fg_ViewMatrixInverse
+				- fg_ViewMatrix
+				- fg_Planes
+			-->
+		</pass>
+	</technique>
+</PropertyList>
diff --git a/Shaders/ambient.frag b/Shaders/ambient.frag
new file mode 100644
index 000000000..d6596a1d9
--- /dev/null
+++ b/Shaders/ambient.frag
@@ -0,0 +1,15 @@
+uniform sampler2D color_tex;
+//uniform sampler2D ao_tex;
+uniform sampler2D normal_tex;
+uniform sampler2D spec_emis_tex;
+uniform vec4 fg_SunAmbientColor;
+void main() {
+    vec2 coords = gl_TexCoord[0].xy;
+    float initialized = texture2D( spec_emis_tex, coords ).a;
+    if ( initialized < 0.1 )
+        discard;
+    vec3 tcolor = texture2D( color_tex, coords ).rgb;
+//    float ao = texture2D( ao_tex, coords ).r;
+//    gl_FragColor = vec4(tcolor*fg_SunAmbientColor.rgb*ao, 1.0);
+    gl_FragColor = vec4(tcolor*fg_SunAmbientColor.rgb, 1.0);
+}
diff --git a/Shaders/ambient.vert b/Shaders/ambient.vert
new file mode 100644
index 000000000..f01ebba78
--- /dev/null
+++ b/Shaders/ambient.vert
@@ -0,0 +1,4 @@
+void main() {
+    gl_Position = gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+}