92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_VEGETABLE_CLIP_BLOCK_H
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#define NL_VEGETABLE_CLIP_BLOCK_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/aabbox.h"
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#include "nel/misc/bsphere.h"
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#include "nel/3d/tess_list.h"
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#include "nel/3d/vegetable_sort_block.h"
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namespace NL3D
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{
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using NLMISC::CVector;
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using NLMISC::CPlane;
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// ***************************************************************************
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/**
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* A block of vegetable instance groups (via sortBlocks) which are clipped in frustum together
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* Internal to VegetableManager. Just an Handle for public.
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* \author Lionel Berenguier
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* \author Nevrax France
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* \date 2001
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*/
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class CVegetableClipBlock : public CTessNodeList
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{
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public:
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/// Constructor
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CVegetableClipBlock();
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// ***************
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private:
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friend class CVegetableManager;
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/// \name Fast clipping.
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// @{
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bool _Empty;
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NLMISC::CAABBox _BBox;
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NLMISC::CBSphere _BSphere;
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// extend sphere
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void extendSphere(const CVector &vec);
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// extend bbox. Must not be empty. NB: do not modify the sphere
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void extendBBoxOnly(const CVector &vec);
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// compute the sphere according to the bbox.
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void updateSphere();
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// return false if empty or out of frustum
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bool clip(const std::vector<CPlane> &pyramid);
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// @}
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private:
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// List of SortBlocks.
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CTessList<CVegetableSortBlock> _SortBlockList;
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// The number of instanceGroups created in this clipBlock.
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uint _NumIgs;
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// RenderList
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CVegetableClipBlock *_RenderNext;
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};
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} // NL3D
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#endif // NL_VEGETABLE_CLIP_BLOCK_H
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/* End of vegetable_clip_block.h */
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