Lukas Tönne
e15cdec2d4
This allows adding a "fake" sun beam effect, simulating crepuscular rays from light being scattered in a medium like the atmosphere or deep water. Such effects can be created also by renderers using volumetric lighting, but the compositor feature is a lot cheaper and is independent from 3D rendering. This makes it ideally suited for motion graphics. The implementation uses am optimized accumulation method for gathering color values along a line segment. The inner buffer loop uses fixed offset increments to avoid unnecessary multiplications and avoids variables by using compile-time specialization (see inline comments for further details).
38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
/*
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* Copyright 2014, Blender Foundation.
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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, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor:
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* Lukas Toenne
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*/
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#ifndef _COM_SunBeamsNode_h_
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#define _COM_SunBeamsNode_h_
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#include "COM_Node.h"
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/**
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* @brief SunBeamsNode
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* @ingroup Node
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*/
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class SunBeamsNode : public Node {
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public:
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SunBeamsNode(bNode *editorNode);
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void convertToOperations(NodeConverter &converter, const CompositorContext &context) const;
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};
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#endif
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