1 files changed, 41 insertions, 0 deletions
diff --git a/src/GLSLShaderTest/dimple.vert b/src/GLSLShaderTest/dimple.vert
new file mode 100644
index 0000000..0707d71
--- /dev/null
+++ b/src/GLSLShaderTest/dimple.vert
@@ -0,0 +1,41 @@
+
+//
+// dimple.vert: Vertex shader for bump mapping dimples (bumps)
+//
+// author: John Kessenich
+//
+// Copyright (c) 2002: 3Dlabs, Inc.
+//
+
+varying vec3 LightDir;
+varying vec3 EyeDir;
+varying vec3 Normal;
+
+//uniform vec3 LightPosition;
+//uniform float Scale;
+vec3 LightPosition = vec3(0.0, 0.0, 5.0);
+float Scale = 1.0;
+
+void main(void) 
+{
+	vec4 pos = gl_ModelViewMatrix * gl_Vertex;
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+    vec3 eyeDir = vec3(pos);
+//    gl_TexCoord[0] = gl_MultiTexCoord0;
+    gl_TexCoord[0] = gl_Vertex;
+
+    vec3 n = normalize(gl_NormalMatrix * gl_Normal);
+    vec3 t = normalize(cross(vec3(1.141, 2.78, 3.14), n));
+    vec3 b = cross(n, t);
+
+    vec3 v;
+    v.x = dot(LightPosition, t);
+    v.y = dot(LightPosition, b);
+    v.z = dot(LightPosition, n);
+    LightDir = normalize(v);
+
+    v.x = dot(eyeDir, t);
+    v.y = dot(eyeDir, b);
+    v.z = dot(eyeDir, n);
+    EyeDir = normalize(v);
+}