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fgdata/Shaders/transition.vert

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// -*-C++-*-
// -*-C++-*-
// Texture switching based on face slope and snow level
// based on earlier work by Frederic Bouvier, Tim Moore, and Yves Sablonier.
// © Emilian Huminiuc 2011
#version 120
varying vec4 RawPos;
varying vec3 normal;
varying vec3 Vnormal;
void main()
{
RawPos = gl_Vertex;
gl_Position = ftransform();
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
normal = normalize(gl_Normal);
Vnormal = normalize(gl_NormalMatrix * gl_Normal);
}