42 lines
904 B
GLSL
42 lines
904 B
GLSL
/**
|
|
* @file terrainV.glsl
|
|
*
|
|
* Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
|
|
* $License$
|
|
*/
|
|
|
|
varying vec3 vary_normal;
|
|
varying vec4 vary_position;
|
|
|
|
vec4 texgen_object(vec4 vpos, vec4 tc, mat4 mat, vec4 tp0, vec4 tp1)
|
|
{
|
|
vec4 tcoord;
|
|
|
|
tcoord.x = dot(vpos, tp0);
|
|
tcoord.y = dot(vpos, tp1);
|
|
tcoord.z = tc.z;
|
|
tcoord.w = tc.w;
|
|
|
|
tcoord = mat * tcoord;
|
|
|
|
return tcoord;
|
|
}
|
|
|
|
void main()
|
|
{
|
|
//transform vertex
|
|
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
|
|
|
|
vary_position = gl_ModelViewMatrix * gl_Vertex;
|
|
vary_normal = normalize(gl_NormalMatrix * gl_Normal);
|
|
|
|
// Transform and pass tex coords
|
|
gl_TexCoord[0].xy = texgen_object(gl_Vertex, gl_MultiTexCoord0, gl_TextureMatrix[0], gl_ObjectPlaneS[0], gl_ObjectPlaneT[0]).xy;
|
|
|
|
vec4 t = gl_MultiTexCoord1;
|
|
|
|
gl_TexCoord[0].zw = t.xy;
|
|
gl_TexCoord[1].xy = t.xy-vec2(2.0, 0.0);
|
|
gl_TexCoord[1].zw = t.xy-vec2(1.0, 0.0);
|
|
}
|