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277964f074
- Implemented soft shadows using PCF hardware shadow mapping The implementation uses sampler2DArrayShadow and PCF which usually requires Direct3D 10.1 however it is in the OpenGL 3.2 core so it should be widely supported. All 3 light types are supported which means parallel lights (sun) use scene independent cascaded shadow mapping. The implementation is very fast with single taps (400 fps average per scene on a GTX 660 ti OC) however I defaulted it to 16 taps so the shadows look really good which should you give stable 100 fps on todays hardware. The shadow filtering algorithm is based on Carmack's research which was released in the original Doom 3 GPL release draw_exp.cpp. - Changed interaction shaders to use Half-Lambert lighting like in HL2 to make the game less dark - Fixed some of the renderer debugging/development tools like r_showTris
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/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
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Copyright (C) 2013 Robert Beckebans
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 BFG Edition Source Code 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#include "renderprogs/global.inc"
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struct VS_IN
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{
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float4 position : POSITION;
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float2 texcoord : TEXCOORD0;
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float4 normal : NORMAL;
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float4 tangent : TANGENT;
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float4 color : COLOR0;
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};
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struct VS_OUT
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{
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float4 position : POSITION;
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float4 color : COLOR0;
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};
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void main( VS_IN vertex, out VS_OUT result )
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{
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result.position.x = dot4( vertex.position, rpMVPmatrixX );
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result.position.y = dot4( vertex.position, rpMVPmatrixY );
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result.position.z = dot4( vertex.position, rpMVPmatrixZ );
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result.position.w = dot4( vertex.position, rpMVPmatrixW );
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result.color = swizzleColor( vertex.color );
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} |