ogre_render_queue_clearer.cpp
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00001 /*
00002  * Copyright (c) 2012, Willow Garage, Inc.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  *     * Redistributions of source code must retain the above copyright
00009  *       notice, this list of conditions and the following disclaimer.
00010  *     * Redistributions in binary form must reproduce the above copyright
00011  *       notice, this list of conditions and the following disclaimer in the
00012  *       documentation and/or other materials provided with the distribution.
00013  *     * Neither the name of the Willow Garage, Inc. nor the names of its
00014  *       contributors may be used to endorse or promote products derived from
00015  *       this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 #include "ogre_render_queue_clearer.h"
00031 
00032 #include <OgreRoot.h>
00033 #include <OgrePass.h>
00034 
00035 namespace rviz
00036 {
00037 
00038 OgreRenderQueueClearer::OgreRenderQueueClearer() {
00039         // TODO Auto-generated constructor stub
00040 
00041 }
00042 
00043 OgreRenderQueueClearer::~OgreRenderQueueClearer() {
00044         // TODO Auto-generated destructor stub
00045 }
00046 
00047 
00048 bool OgreRenderQueueClearer::frameStarted (const Ogre::FrameEvent &evt)
00049 {
00050         // Workaround taken from http://www.ogre3d.org/mantis/view.php?id=130
00051         // in case a plugin creates its own scene manager.
00052         //
00053         // Has the following modifications:
00054         // 1. Need to pass 'true' to RenderQueue::clear( bool destroyPassMaps ).
00055         // 2. Don't need to call Ogre::Pass::processPendingPassUpdates(),
00056         //    since this is done within RenderQueue::clear().
00057 
00058         // This workaround is only necessary if there is more than one
00059         // scene manager present, so check for that
00060         Ogre::SceneManagerEnumerator::SceneManagerIterator it = Ogre::Root::getSingletonPtr()->getSceneManagerIterator();
00061         it.getNext();
00062         if ( !it.hasMoreElements() )
00063         {
00064                 return true;
00065         }
00066 
00067         it = Ogre::Root::getSingletonPtr()->getSceneManagerIterator();
00068         while ( it.hasMoreElements() )
00069         {
00070                 it.getNext()->getRenderQueue()->clear( true );
00071         }
00072         return true;
00073 }
00074 
00075 }
00076 


rviz
Author(s): Dave Hershberger, David Gossow, Josh Faust
autogenerated on Tue Oct 3 2017 03:19:31