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/**
* @file gatherSkyShV.glsl
*
* $LicenseInfo:firstyear=2005&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2005, 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
* $/LicenseInfo$
*/
ATTRIBUTE vec3 position;
ATTRIBUTE vec2 texcoord0;
VARYING vec2 vary_frag;
uniform vec2 screen_res;
void main()
{
// pass through untransformed fullscreen pos
float oo_divisor = screen_res.x / 64.0;
vec3 pos = (position.xyz * oo_divisor) + vec3(oo_divisor - 1, oo_divisor - 1, 0);
gl_Position = vec4(pos.xyz, 1.0);
vary_frag = texcoord0 * oo_divisor;
}
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