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Revision 6871
(checked in by robert, 2 years ago)
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Checked in first cut of new SVN for OpenSceneGraph-Data
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// |
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// eroded.vert: Vertex shader for erosion effect |
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// |
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// author: Randi Rost |
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// |
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// Copyright (c) 2002: 3Dlabs, Inc. |
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// |
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varying float lightIntensity; |
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varying vec3 Position; |
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uniform vec3 LightPosition; |
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uniform float Scale; |
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void main(void) { |
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vec4 pos = gl_ModelViewMatrix * gl_Vertex; |
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Position = vec3(gl_Vertex) * Scale; |
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vec3 tnorm = normalize(gl_NormalMatrix * gl_Normal); |
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float dotval = max(dot(normalize(LightPosition - vec3(pos)), tnorm), 0.0); |
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lightIntensity = dotval * 1.5; |
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gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; |
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} |
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