76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
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* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file cpostshader_ssao.h
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* @brief Implements a post shader screen space ambient occlusion on software
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*/
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#ifndef CPOSTSHADER_SSAO_H
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#define CPOSTSHADER_SSAO_H
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#include "cpostshader.h"
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class CPOSTSHADER_SSAO : public CPOSTSHADER
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{
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public:
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explicit CPOSTSHADER_SSAO( const CCAMERA &aCamera );
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//~CPOSTSHADER_SSAO();
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// Imported from CPOSTSHADER
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SFVEC3F Shade(const SFVEC2I &aShaderPos ) const override;
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SFVEC3F ApplyShadeColor( const SFVEC2I &aShaderPos, const SFVEC3F &aInputColor, const SFVEC3F &aShadeColor ) const override;
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private:
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SFVEC3F posFromDepth( const SFVEC2F &coord ) const;
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float ec_depth( const SFVEC2F &tc ) const;
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float aoFF( const SFVEC2I &aShaderPos,
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const SFVEC3F &ddiff,
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const SFVEC3F &cnorm,
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int c1,
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int c2 ) const;
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float giFF( const SFVEC2I &aShaderPos,
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const SFVEC3F &ddiff,
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const SFVEC3F &cnorm,
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int c1,
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int c2 ) const;
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/**
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* @brief giColorCurve - Apply a curve transformation to the original color
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* it will atenuate the bright colors (works as a gamma function):
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* http://fooplot.com/#W3sidHlwZSI6MCwiZXEiOiIxLjAtKDEvKHgqMS4wKzEuMCkpK3gqMC4zMCIsImNvbG9yIjoiIzAwMDAwMCJ9LHsidHlwZSI6MTAwMCwid2luZG93IjpbIi0wLjA2MjE4NDYxNTM4NDYxNTUwNSIsIjEuMTQyOTg0NjE1Mzg0NjE0NiIsIi0wLjEyNzA5OTk5OTk5OTk5OTc3IiwiMS4xMzI2Il19XQ--
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* @param aColor input color
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* @return transformated color
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*/
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SFVEC3F giColorCurve( const SFVEC3F &aColor ) const;
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};
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#endif // CPOSTSHADER_SSAO_H
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