From a6f7445079ee5b8b24e48c456dff31ff70e1b5b1 Mon Sep 17 00:00:00 2001
From: kcr <kcr@28c7f869-5b4e-e670-f602-82bfaf57f300>
Date: Tue, 6 Dec 2005 19:46:01 +0000
Subject: Issue 198 : Need more shader example programs     1) Added Phong
 shading example     2) Minor mod to SphereGLSL     3) Added toon shader

---
 src/GLSLShaderTest/toon.frag | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 src/GLSLShaderTest/toon.frag

(limited to 'src/GLSLShaderTest/toon.frag')

diff --git a/src/GLSLShaderTest/toon.frag b/src/GLSLShaderTest/toon.frag
new file mode 100644
index 0000000..fa50453
--- /dev/null
+++ b/src/GLSLShaderTest/toon.frag
@@ -0,0 +1,34 @@
+//
+// Fragment shader for cartoon-style shading
+//
+// Author: Philip Rideout
+//
+// Copyright (c) 2004 3Dlabs Inc. Ltd.
+//
+// See 3Dlabs-License.txt for license information
+//
+
+//uniform vec3 DiffuseColor;
+//uniform vec3 PhongColor;
+//uniform float Edge;
+//uniform float Phong;
+
+vec3 DiffuseColor = vec3(0.5,0.5,1.0);
+vec3 PhongColor = vec3(0.75,0.75,1.0);
+float Edge = 0.64;
+float Phong = 0.90;
+
+varying vec3 Normal;
+varying vec3 LightDir;
+
+void main (void)
+{
+	vec3 color = DiffuseColor;
+	float f = max( 0.0, dot(LightDir,Normal));
+	if (abs(f) < Edge)
+		color = DiffuseColor * 0.2;
+	if (f > Phong)
+		color = PhongColor;
+
+	gl_FragColor = vec4(color, 1);
+}
-- 
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