1 files changed, 0 insertions, 41 deletions
diff --git a/progs/glsl/CH06-brick.vert.txt b/progs/glsl/CH06-brick.vert.txt
deleted file mode 100644
index e95e6f42f0..0000000000
--- a/progs/glsl/CH06-brick.vert.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Vertex shader for procedural bricks
-//
-// Authors: Dave Baldwin, Steve Koren, Randi Rost
-//          based on a shader by Darwyn Peachey
-//
-// Copyright (c) 2002-2006 3Dlabs Inc. Ltd. 
-//
-// See 3Dlabs-License.txt for license information
-//
-
-uniform vec3 LightPosition;
-
-const float SpecularContribution = 0.3;
-const float DiffuseContribution  = 1.0 - SpecularContribution;
-
-varying float LightIntensity;
-varying vec2  MCposition;
-
-void main()
-{
-    vec3 ecPosition = vec3(gl_ModelViewMatrix * gl_Vertex);
-    vec3 tnorm      = normalize(gl_NormalMatrix * gl_Normal);
-    vec3 lightVec   = normalize(LightPosition - ecPosition);
-    vec3 reflectVec = reflect(-lightVec, tnorm);
-    vec3 viewVec    = normalize(-ecPosition);
-    float diffuse   = max(dot(lightVec, tnorm), 0.0);
-    float spec      = 0.0;
-
-    if (diffuse > 0.0)
-    {
-        spec = max(dot(reflectVec, viewVec), 0.0);
-        spec = pow(spec, 16.0);
-    }
-
-    LightIntensity  = DiffuseContribution * diffuse +
-                      SpecularContribution * spec;
-
-    MCposition      = gl_Vertex.xy;
-    gl_Position     = ftransform();
-}