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33 lines
887 B
GLSL
33 lines
887 B
GLSL
#version 120
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//
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// metavoxel_heighfield.vert
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// vertex shader
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//
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// Created by Andrzej Kapolka on 7/28/14.
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// Copyright 2014 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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// the height texture
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uniform sampler2D heightMap;
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// the interpolated normal
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varying vec4 normal;
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void main(void) {
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// transform and store the normal for interpolation
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normal = normalize(gl_ModelViewMatrix * vec4(0.0, 1.0, 0.0, 0.0));
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// pass along the vertex color
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gl_FrontColor = gl_Color;
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// pass along the texture coordinates
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gl_TexCoord[0] = gl_MultiTexCoord0;
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// add the height to the position
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gl_Position = gl_ModelViewProjectionMatrix * (gl_Vertex +
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vec4(0.0, texture2D(heightMap, gl_MultiTexCoord0.st).r, 0.0, 0.0));
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}
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