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author | kcr <kcr@28c7f869-5b4e-e670-f602-82bfaf57f300> | 2005-10-17 23:09:14 +0000 |
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committer | kcr <kcr@28c7f869-5b4e-e670-f602-82bfaf57f300> | 2005-10-17 23:09:14 +0000 |
commit | 4325f75ac43540221ba95d7ac925a1c9dc566152 (patch) | |
tree | facc740ba800f3a3f68e0fb585965b22f78b653c /src/GLSLShaderTest/dimple.vert | |
parent | d73245421b294f50b9d4728bcbc717876f83d250 (diff) |
Merged changes from dev-1_4 branch into the main trunk.
NOTE: all 1.4 development will now proceed on the main trunk. The dev-1_4 branch is closed.
Diffstat (limited to 'src/GLSLShaderTest/dimple.vert')
-rw-r--r-- | src/GLSLShaderTest/dimple.vert | 41 |
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); +} |