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113 lines
4.0 KiB
113 lines
4.0 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library 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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* OpenSceneGraph Public License for more details. |
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*/ |
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#ifndef OSG_CLIPNODE |
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#define OSG_CLIPNODE 1 |
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#include <osg/Group> |
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#include <osg/ClipPlane> |
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namespace osg { |
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/** Node for defining the position of ClipPlanes in the scene.*/ |
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class OSG_EXPORT ClipNode : public Group |
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{ |
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public: |
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typedef std::vector<ref_ptr<ClipPlane> > ClipPlaneList; |
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ClipNode(); |
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ClipNode(const ClipNode& es, const CopyOp& copyop=CopyOp::SHALLOW_COPY); |
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META_Node(osg, ClipNode); |
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enum ReferenceFrame |
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{ |
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RELATIVE_RF, |
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ABSOLUTE_RF |
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}; |
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/** Set the light sources's ReferenceFrame, either to be relative to its |
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* parent reference frame, or relative to an absolute coordinate |
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* frame. RELATIVE_RF is the default. |
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* Note: setting the ReferenceFrame to be ABSOLUTE_RF will |
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* also set the CullingActive flag on the light source, and hence all |
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* of its parents, to false, thereby disabling culling of it and |
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* all its parents. This is necessary to prevent inappropriate |
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* culling, but may impact cull times if the absolute light source is |
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* deep in the scene graph. It is therefore recommended to only use |
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* absolute light source at the top of the scene. |
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*/ |
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void setReferenceFrame(ReferenceFrame rf); |
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ReferenceFrame getReferenceFrame() const { return _referenceFrame; } |
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/** Creates six clip planes corresponding to the given BoundingBox. */ |
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void createClipBox(const BoundingBox& bb,unsigned int clipPlaneNumberBase=0); |
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/** Adds the clipplane. Returns true on success, and false if the plane |
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* has already been added, or if clipplane is NULL. */ |
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bool addClipPlane(ClipPlane* clipplane); |
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/** Removes the clipplane. Returns true on success, false if clipplane |
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* isn't in this ClipNode.*/ |
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bool removeClipPlane(ClipPlane* clipplane); |
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/** Remove the ClipPlane with the given index. Returns true on success, |
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* false if pos is not a valid plane index. */ |
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bool removeClipPlane(unsigned int pos); |
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/** Returns the number of ClipPlanes. */ |
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inline unsigned int getNumClipPlanes() const { return _planes.size(); } |
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/** Get ClipPlane at the given index position. */ |
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inline ClipPlane* getClipPlane(unsigned int pos) { return _planes[pos].get(); } |
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/** Get const ClipPlane at the given index position. */ |
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inline const ClipPlane* getClipPlane(unsigned int pos) const { return _planes[pos].get(); } |
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/** Set the ClipPlaneList. */ |
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inline void setClipPlaneList(const ClipPlaneList& cpl) { _planes=cpl; } |
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/** Get the ClipPlaneList. */ |
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inline ClipPlaneList& getClipPlaneList() { return _planes; } |
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/** Get the const ClipPlaneList. */ |
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inline const ClipPlaneList& getClipPlaneList() const { return _planes; } |
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/** Set the GLModes for all ClipPlanes, on the StateSet. */ |
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void setStateSetModes(StateSet&,StateAttribute::GLModeValue) const; |
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/** Set up the local StateSet. */ |
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void setLocalStateSetModes(StateAttribute::GLModeValue=StateAttribute::ON); |
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virtual BoundingSphere computeBound() const; |
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protected: |
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virtual ~ClipNode(); |
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StateAttribute::GLModeValue _value; |
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ClipPlaneList _planes; |
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ReferenceFrame _referenceFrame; |
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}; |
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} |
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#endif
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