/** 
 * @file sunLightSSAOF.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
 * $/LicenseInfo$
 */
 

//#extension GL_ARB_texture_rectangle : enable

#ifdef DEFINE_GL_FRAGCOLOR
out vec4 frag_color;
#else
#define frag_color gl_FragColor
#endif

VARYING vec2 vary_fragcoord;

uniform sampler2DRect depthMapDownsampled;
uniform sampler2DRect depthMap;

uniform sampler2DRect diffuseRect;
uniform float		  downsampled_depth_scale;
uniform vec2 screen_res;

void main() 
{	
	frag_color[0] = 1.0;
    frag_color[1] = texture2DRect(diffuseRect,vary_fragcoord.xy*downsampled_depth_scale).r;
	frag_color[2] = 1.0;
	frag_color[3] = 1.0;
}