60 lines
1.7 KiB
GLSL
60 lines
1.7 KiB
GLSL
/**
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* @file class1/deferred/gbufferUtil.glsl
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*
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* $LicenseInfo:firstyear=2024&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2007, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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uniform sampler2D diffuseRect;
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uniform sampler2D specularRect;
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#if defined(HAS_EMISSIVE)
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uniform sampler2D emissiveRect;
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#endif
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vec4 getNormRaw(vec2 screenpos);
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vec4 decodeNormal(vec4 norm);
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GBufferInfo getGBuffer(vec2 screenpos)
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{
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GBufferInfo ret;
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vec4 diffInfo = vec4(0);
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vec4 specInfo = vec4(0);
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vec4 emissInfo = vec4(0);
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diffInfo = texture(diffuseRect, screenpos.xy);
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specInfo = texture(specularRect, screenpos.xy);
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vec4 normInfo = getNormRaw(screenpos);
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#if defined(HAS_EMISSIVE)
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emissInfo = texture(emissiveRect, screenpos.xy);
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#endif
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ret.albedo = diffInfo;
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ret.normal = decodeNormal(normInfo).xyz;
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ret.specular = specInfo;
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ret.envIntensity = normInfo.b;
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ret.gbufferFlag = normInfo.w;
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ret.emissive = emissInfo;
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return ret;
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}
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