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/**
* @file diffuseV.glsl
*
* $LicenseInfo:firstyear=2007&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2007, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
uniform mat3 normal_matrix;
uniform mat4 texture_matrix0;
uniform mat4 modelview_projection_matrix;
uniform bool invert_tex_y = false;
const mat4 invTexM = mat4(
1, 0, 0, 0,
0,-1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
);
ATTRIBUTE vec3 position;
ATTRIBUTE vec4 diffuse_color;
ATTRIBUTE vec3 normal;
ATTRIBUTE vec2 texcoord0;
VARYING vec3 vary_normal;
VARYING vec4 vertex_color;
VARYING vec2 vary_texcoord0;
void passTextureIndex();
void main()
{
//transform vertex
gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
if(invert_tex_y)
{
vary_texcoord0 = vec2(invTexM * vec4(vary_texcoord0,0,1)).xy;
}
passTextureIndex();
vary_normal = normalize(normal_matrix * normal);
vertex_color = diffuse_color;
}
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