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39 lines
1.0 KiB
39 lines
1.0 KiB
//========= Copyright © 1996-2009, Valve Corporation, All rights reserved. ============//
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//
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// Purpose: used to cross section maps ( i.e. displacements ) to do fast occlusion against
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//
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// $NoKeywords: $
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//=====================================================================================//
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#ifndef FOW_HORIZONTALSLICE_H
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#define FOW_HORIZONTALSLICE_H
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#if defined( COMPILER_MSVC )
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#pragma once
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#endif
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#include "utlvector.h"
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#include "utlspheretree.h"
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#include "mathlib/vector.h"
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#include "fow_lineoccluder.h"
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class CFoW;
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class CFoW_Viewer;
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class CFoW_HorizontalSlice
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{
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public:
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CFoW_HorizontalSlice( void );
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// clears the sphere tree of all line occluders
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void Clear( void );
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// adds a line occluder to the sphere tree
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void AddHorizontalOccluder( CFoW_LineOccluder *pLineOccluder );
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// tests the viewer against all line occluders that are near the viewer
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void ObstructViewer( CFoW *pFoW, CFoW_Viewer *pViewer );
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private:
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CUtlSphereTree m_SphereTree; // spherical tree to quickly find line occulders near a given point
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};
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#endif // FOW_HORIZONTALSLICE_H
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