From Paul Martz, Introduced osg::OcclusionQueryNode with support for OpenGL occlusion query extension
This commit is contained in:
Robert Osfield
686
src/osg/OcclusionQueryNode.cpp
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686
src/osg/OcclusionQueryNode.cpp
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@@ -0,0 +1,686 @@
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//
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// Copyright (C) 2007 Skew Matrix Software LLC (http://www.skew-matrix.com)
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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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#include <osg/OcclusionQueryNode>
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#include <OpenThreads/ScopedLock>
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#include <osg/Timer>
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#include <osg/Notify>
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#include <osg/CopyOp>
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#include <osg/Vec3>
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#include <osg/MatrixTransform>
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#include <osg/Group>
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#include <osg/Geode>
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#include <osg/Geometry>
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#include <osg/BoundingBox>
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#include <osg/BoundingSphere>
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#include <osg/Referenced>
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#include <osg/ComputeBoundsVisitor>
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#include <osg/StateSet>
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#include <osg/StateAttribute>
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#include <osg/PolygonMode>
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#include <osg/ColorMask>
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#include <osg/PolygonOffset>
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#include <osg/Depth>
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#include <map>
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#include <vector>
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//
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// Support classes, used by (and private to) OcclusionQueryNode.
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// (Note a lot of this is historical. OcclusionQueryNode formaerly
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// existed as a NodeKit outside the core OSG distribution. Many
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// of these classes existed in their own separate header and
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// source files.)
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// Create and return a StateSet appropriate for performing an occlusion
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// query test (disable lighting, texture mapping, etc). Probably some
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// room for improvement here. Could disable shaders, for example.
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osg::StateSet*
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initOQState()
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{
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osg::StateSet* state = new osg::StateSet;
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// TBD Possible bug, need to allow user to set render bin number.
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state->setRenderBinDetails( 9, "RenderBin" );
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state->setMode( GL_LIGHTING, osg::StateAttribute::OFF |
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osg::StateAttribute::PROTECTED);
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state->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OFF |
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osg::StateAttribute::PROTECTED);
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state->setMode( GL_CULL_FACE, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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osg::ColorMask* cm = new osg::ColorMask( false, false, false, false );
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state->setAttributeAndModes( cm, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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osg::Depth* d = new osg::Depth( osg::Depth::LEQUAL, 0.f, 1.f, false );
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state->setAttributeAndModes( d, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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osg::PolygonMode* pm = new osg::PolygonMode(
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osg::PolygonMode::FRONT_AND_BACK, osg::PolygonMode::FILL );
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state->setAttributeAndModes( pm, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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osg::PolygonOffset* po = new osg::PolygonOffset( -1., -1. );
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state->setAttributeAndModes( po, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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return state;
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}
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// Create and return a StateSet for rendering a debug representation of query geometry.
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osg::StateSet*
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initOQDebugState()
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{
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osg::StateSet* debugState = new osg::StateSet;
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debugState->setMode( GL_LIGHTING, osg::StateAttribute::OFF |
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osg::StateAttribute::PROTECTED);
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debugState->setTextureMode( 0, GL_TEXTURE_2D, osg::StateAttribute::OFF |
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osg::StateAttribute::PROTECTED);
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debugState->setMode( GL_CULL_FACE, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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osg::PolygonMode* pm = new osg::PolygonMode(
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osg::PolygonMode::FRONT_AND_BACK, osg::PolygonMode::LINE );
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debugState->setAttributeAndModes( pm, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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osg::PolygonOffset* po = new osg::PolygonOffset( -1., -1. );
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debugState->setAttributeAndModes( po, osg::StateAttribute::ON |
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osg::StateAttribute::PROTECTED);
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return debugState;
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}
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// TestResult -- stores (per context) results of an occlusion query
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// test performed by QueryGeometry. An OcclusionQueryNode has a
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// Geode owning a single QueryGeometry that
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// draws the occlusion query geometry. QueryGeometry keeps a
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// TestResult per context to store the result/status of each query.
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// Accessed during the cull and draw traversals.
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class TestResult : public osg::Referenced
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{
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public:
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TestResult() : _init( false ), _id( 0 ), _active( false ), _numPixels( 0 ) {}
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~TestResult() {}
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bool _init;
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// Query ID for this context.
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GLuint _id;
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// Set to true when a query gets issued and set to
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// false when the result is retrieved.
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mutable bool _active;
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// Result of last query.
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GLint _numPixels;
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};
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// QueryGeometry -- A Drawable that performs an occlusion query,
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// using its geometric data as the query geometry.
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class QueryGeometry : public osg::Geometry
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{
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public:
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QueryGeometry( const std::string& oqnName=std::string("") );
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~QueryGeometry() {}
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// TBD implement copy constructor
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virtual void drawImplementation( osg::RenderInfo& renderInfo ) const;
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unsigned int getNumPixels( const osg::Camera* cam );
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protected:
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typedef std::map< const osg::Camera*, TestResult > ResultMap;
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mutable ResultMap _results;
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mutable OpenThreads::Mutex _mapMutex;
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// Needed for debug only
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std::string _oqnName;
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};
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struct RetrieveQueriesCallback : public osg::Camera::DrawCallback
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{
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typedef std::vector<TestResult*> ResultsVector;
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ResultsVector _results;
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RetrieveQueriesCallback( osg::Drawable::Extensions* ext=NULL )
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: _extensionsFallback( ext )
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{
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}
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RetrieveQueriesCallback( const RetrieveQueriesCallback&, const osg::CopyOp& ) {}
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META_Object( osgOQ, RetrieveQueriesCallback )
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virtual void operator() (const osg::Camera& camera) const
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{
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if (_results.empty())
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return;
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const osg::Timer& timer = *osg::Timer::instance();
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osg::Timer_t start_tick = timer.tick();
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double elapsedTime( 0. );
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int count( 0 );
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osg::Drawable::Extensions* ext;
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if (camera.getGraphicsContext())
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{
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// The typical path, for osgViewer-based applications or any
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// app that has set up a valid GraphicsCOntext for the Camera.
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unsigned int contextID = camera.getGraphicsContext()->getState()->getContextID();
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RetrieveQueriesCallback* const_this = const_cast<RetrieveQueriesCallback*>( this );
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ext = const_this->getExtensions( contextID, true );
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}
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else
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{
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// No valid GraphicsContext in the Camera. This might happen in
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// SceneView-based apps. Rely on the creating code to have passed
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// in a valid Extensions pointer, and hope it's valid for any
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// context that might be current.
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osg::notify( osg::DEBUG_INFO ) << "osgOQ: RQCB: Using fallback path to obtain Extensions pointer." << std::endl;
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ext = _extensionsFallback;
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if (!ext)
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{
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osg::notify( osg::FATAL ) << "osgOQ: RQCB: Extensions pointer fallback is NULL." << std::endl;
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return;
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}
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}
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ResultsVector::const_iterator it = _results.begin();
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while (it != _results.end())
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{
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TestResult* tr = const_cast<TestResult*>( *it );
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if (!tr->_active || !tr->_init)
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{
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// This test wasn't executed last frame. This is probably because
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// a parent node failed the OQ test, this node is outside the
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// view volume, or we didn't run the test because we had not
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// exceeded visibleQueryFrameCount.
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// Do not obtain results from OpenGL.
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it++;
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continue;
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}
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osg::notify( osg::DEBUG_INFO ) <<
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"osgOQ: RQCB: Retrieving..." << std::endl;
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ext->glGetQueryObjectiv( tr->_id, GL_QUERY_RESULT, &(tr->_numPixels) );
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if (tr->_numPixels < 0)
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osg::notify( osg::WARN ) << "osgOQ: RQCB: " <<
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"glGetQueryObjectiv returned negative value (" << tr->_numPixels << ")." << std::endl;
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// Either retrieve last frame's results, or ignore it because the
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// camera is inside the view. In either case, _active is now false.
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tr->_active = false;
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it++;
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count++;
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}
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elapsedTime = timer.delta_s(start_tick,timer.tick());
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osg::notify( osg::INFO ) << "osgOQ: RQCB: " << "Retrieved " << count <<
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" queries in " << elapsedTime << " seconds." << std::endl;
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}
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void reset()
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{
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_results.clear();
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}
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void add( TestResult* tr )
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{
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_results.push_back( tr );
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}
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osg::Drawable::Extensions* getExtensions( unsigned int contextID, bool createIfNotInitalized )
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{
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if (!s_extensions[ contextID ] && createIfNotInitalized)
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s_extensions[ contextID ] = new osg::Drawable::Extensions( contextID );
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return s_extensions[ contextID ].get();
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}
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typedef osg::buffered_value< osg::ref_ptr< osg::Drawable::Extensions > > BufferedExtensions;
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static BufferedExtensions s_extensions;
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osg::Drawable::Extensions* _extensionsFallback;
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};
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RetrieveQueriesCallback::BufferedExtensions RetrieveQueriesCallback::s_extensions;
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// PreDraw callback; clears the list of Results from the PostDrawCallback (above).
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struct ClearQueriesCallback : public osg::Camera::DrawCallback
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{
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ClearQueriesCallback() : _rqcb( NULL ) {}
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ClearQueriesCallback( const ClearQueriesCallback&, const osg::CopyOp& ) {}
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META_Object( osgOQ, ClearQueriesCallback )
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virtual void operator() (const osg::Camera& camera) const
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{
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if (!_rqcb)
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{
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osg::notify( osg::FATAL ) << "oagOQ: CQCB: Invalid RQCB." << std::endl;
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return;
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}
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_rqcb->reset();
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}
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RetrieveQueriesCallback* _rqcb;
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};
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QueryGeometry::QueryGeometry( const std::string& oqnName )
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: _oqnName( oqnName )
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{
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// TBD check to see if we can have this on.
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setUseDisplayList( false );
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}
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// After 1.2, param 1 changed from State to RenderInfo.
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// Warning: Version was still 1.2 on dev branch long after the 1.2 release,
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// and finally got bumped to 1.9 in April 2007.
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void
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QueryGeometry::drawImplementation( osg::RenderInfo& renderInfo ) const
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{
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unsigned int contextID = renderInfo.getState()->getContextID();
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osg::Drawable::Extensions* ext = getExtensions( contextID, true );
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osg::Camera* cam = renderInfo.getCurrentCamera();
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// Add callbacks if necessary.
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if (!cam->getPostDrawCallback())
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{
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RetrieveQueriesCallback* rqcb = new RetrieveQueriesCallback( ext );
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cam->setPostDrawCallback( rqcb );
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ClearQueriesCallback* cqcb = new ClearQueriesCallback;
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cqcb->_rqcb = rqcb;
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cam->setPreDrawCallback( cqcb );
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}
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// Get TestResult from Camera map
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TestResult* tr;
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock( _mapMutex );
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tr = &( _results[ cam ] );
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}
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// Add TestResult to RQCB.
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RetrieveQueriesCallback* rqcb = dynamic_cast<
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RetrieveQueriesCallback* >( cam->getPostDrawCallback() );
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if (!rqcb)
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{
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osg::notify( osg::FATAL ) << "oagOQ: QG: Invalid RQCB." << std::endl;
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return;
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}
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rqcb->add( tr );
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// Issue query
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if (!tr->_init)
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{
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ext->glGenQueries( 1, &(tr->_id) );
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tr->_init = true;
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}
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osg::notify( osg::DEBUG_INFO ) <<
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"oagOQ: QG: Querying for: " << _oqnName << std::endl;
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ext->glBeginQuery( GL_SAMPLES_PASSED_ARB, tr->_id );
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Geometry::drawImplementation( renderInfo );
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ext->glEndQuery( GL_SAMPLES_PASSED_ARB );
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tr->_active = true;
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osg::notify( osg::DEBUG_INFO ) <<
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"osgOQ: QG. OQNName: " << _oqnName <<
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", Ctx: " << contextID <<
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", ID: " << tr->_id << std::endl;
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#ifdef _DEBUG
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{
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GLenum err;
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if ((err = glGetError()) != GL_NO_ERROR)
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osg::notify( osg::FATAL ) <<
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"osgOQ: QG: OpenGL error: " << err << "." << std::endl;
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}
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#endif
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}
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unsigned int
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QueryGeometry::getNumPixels( const osg::Camera* cam )
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{
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TestResult tr;
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock( _mapMutex );
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tr = _results[ cam ];
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}
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return tr._numPixels;
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}
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// End support classes
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//
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namespace osg
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{
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OcclusionQueryNode::OcclusionQueryNode()
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: _enabled( true ),
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_visThreshold( 500 ),
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_queryFrameCount( 5 ),
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_debugBB( false )
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{
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setDataVariance( osg::Object::DYNAMIC );
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#if 0
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// Before integration into core OSG, OcclusionQueryNode supported a config
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// file to override default values. Can't include this in core osg as it
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// would introduce a dependency onto osgDB for finding the config file.
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// Override defaults if specified in the config file using the OptionLoader singleton.
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int clampMe;
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if ( OptionLoader::instance()->getOption( "VisibilityThreshold", clampMe ) )
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_visThreshold = (clampMe < 0 ) ? 0 : static_cast<unsigned int>( clampMe );
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if ( OptionLoader::instance()->getOption( "QueryFrameCount", clampMe ) )
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_queryFrameCount = (clampMe < 1) ? 1 : static_cast<unsigned int>( clampMe );
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OptionLoader::instance()->getOption( "DebugBoundingVolume", _debugBB );
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#endif
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// OQN has two Geode member variables, one for doing the
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// query and one for rendering the debug geometry.
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// Create and initialize them.
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createSupportNodes();
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}
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OcclusionQueryNode::~OcclusionQueryNode()
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{
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}
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OcclusionQueryNode::OcclusionQueryNode( const OcclusionQueryNode& oqn, const osg::CopyOp& copyop )
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: Group( oqn, copyop )
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{
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_enabled = oqn._enabled;
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_debugBB = oqn._debugBB;
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// Regardless of shallow or deep, create unique support nodes.
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createSupportNodes();
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}
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//PORT-TBD
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#if 0
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// Currently, retrieves last frame's query results during current frame's cull traversal.
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// In the future, should retrive last frame's results immediately after last
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// frame's buffer swap.
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void
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OcclusionQueryNode::traverse( osg::NodeVisitor& nv )
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{
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if ( !_enabled || (nv.getVisitorType() != osg::NodeVisitor::CULL_VISITOR) )
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{
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osg::Group::traverse( nv );
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return;
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}
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osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>( &nv );
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osg::Camera* camera = cv->getRenderStage()->getCamera();
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// In the future, we could hold a reference directly to the QueryDrawable
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// to avoid the dynamic_cast.
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QueryGeometry* qg = dynamic_cast< QueryGeometry* >( _queryGeode->getDrawable( 0 ) );
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if (qg == NULL)
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{
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osg::notify( osg::FATAL ) <<
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"osgOQ: OcclusionQueryNode: No QueryGeometry." << std::endl;
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return;
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}
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// If the distance to the bounding sphere shell is positive, retrieve
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// the results. Others (we're inside the BS shell) we are considered
|
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// to have passed and don't need to retrieve the query.
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const osg::BoundingSphere& bs = getBound();
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float distance = cv->getDistanceToEyePoint( bs._center, false ) - bs._radius;
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_passed = ( distance <= 0.f );
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if (!_passed)
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{
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int result = qg->getNumPixels( camera );
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_passed = ( (unsigned int)(result) > _visThreshold );
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}
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if (_passed)
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// We're visible. Traverse our children
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osg::Group::traverse( nv );
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// Submit a new query only if sufficient frames have elapsed.
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bool issueQuery;
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{
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||||
const int curFrame = nv.getTraversalNumber();
|
||||
|
||||
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( _frameCountMutex );
|
||||
int& lastQueryFrame = _frameCountMap[ camera ];
|
||||
if ( issueQuery = (curFrame - lastQueryFrame >= _queryFrameCount) )
|
||||
lastQueryFrame = curFrame;
|
||||
}
|
||||
if (issueQuery)
|
||||
_queryGeode->accept( nv );
|
||||
|
||||
if (_debugBB)
|
||||
// If requested, display the debug geometry
|
||||
_debugGeode->accept( nv );
|
||||
|
||||
osg::notify( osg::DEBUG_INFO ) <<
|
||||
"oagOQ: OQN::traverse: OQN: " << getName() <<
|
||||
", Cam: " << camera <<
|
||||
", Passed: " << _passed << std::endl;
|
||||
}
|
||||
#endif
|
||||
|
||||
bool
|
||||
OcclusionQueryNode::getPassed( const osg::Camera* camera, float distanceToEyePoint )
|
||||
{
|
||||
if ( !_enabled )
|
||||
// Queries are not enabled. The caller should be osgUtil::CullVisitor,
|
||||
// return true to traverse the subgraphs.
|
||||
return true;
|
||||
|
||||
// In the future, we could hold a reference directly to the QueryDrawable
|
||||
// to avoid the dynamic_cast.
|
||||
QueryGeometry* qg = dynamic_cast< QueryGeometry* >( _queryGeode->getDrawable( 0 ) );
|
||||
if (qg == NULL)
|
||||
{
|
||||
osg::notify( osg::FATAL ) <<
|
||||
"osgOQ: OcclusionQueryNode: No QueryGeometry." << std::endl;
|
||||
// Something's broke. Return true so we at least render correctly.
|
||||
return true;
|
||||
}
|
||||
|
||||
// If the distance to the bounding sphere shell is positive, retrieve
|
||||
// the results. Others (we're inside the BS shell) we are considered
|
||||
// to have passed and don't need to retrieve the query.
|
||||
const osg::BoundingSphere& bs = getBound();
|
||||
float distance = distanceToEyePoint - bs._radius;
|
||||
_passed = ( distance <= 0.f );
|
||||
if (!_passed)
|
||||
{
|
||||
int result = qg->getNumPixels( camera );
|
||||
_passed = ( (unsigned int)(result) > _visThreshold );
|
||||
}
|
||||
|
||||
return _passed;
|
||||
}
|
||||
|
||||
void
|
||||
OcclusionQueryNode::traverseQuery( const osg::Camera* camera, osg::NodeVisitor& nv )
|
||||
{
|
||||
bool issueQuery;
|
||||
{
|
||||
const int curFrame = nv.getTraversalNumber();
|
||||
|
||||
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( _frameCountMutex );
|
||||
int& lastQueryFrame = _frameCountMap[ camera ];
|
||||
if ( issueQuery = (curFrame - lastQueryFrame >= _queryFrameCount) )
|
||||
lastQueryFrame = curFrame;
|
||||
}
|
||||
if (issueQuery)
|
||||
_queryGeode->accept( nv );
|
||||
}
|
||||
|
||||
void
|
||||
OcclusionQueryNode::traverseDebug( osg::NodeVisitor& nv )
|
||||
{
|
||||
if (_debugBB)
|
||||
// If requested, display the debug geometry
|
||||
_debugGeode->accept( nv );
|
||||
}
|
||||
|
||||
osg::BoundingSphere
|
||||
OcclusionQueryNode::computeBound() const
|
||||
{
|
||||
{
|
||||
// Need to make this routine thread-safe. Typically called by the update
|
||||
// Visitor, or just after the update traversal, but could be called by
|
||||
// an application thread or by a non-osgViewer application.
|
||||
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( _computeBoundMutex ) ;
|
||||
|
||||
// This is the logical place to put this code, but the method is const. Cast
|
||||
// away constness to compute the bounding box and modify the query geometry.
|
||||
osg::OcclusionQueryNode* nonConstThis = const_cast<osg::OcclusionQueryNode*>( this );
|
||||
|
||||
|
||||
osg::ComputeBoundsVisitor cbv;
|
||||
nonConstThis->accept( cbv );
|
||||
osg::BoundingBox bb = cbv.getBoundingBox();
|
||||
|
||||
osg::ref_ptr<osg::Vec3Array> v = new osg::Vec3Array;
|
||||
v->resize( 8 );
|
||||
(*v)[0] = osg::Vec3( bb._min.x(), bb._min.y(), bb._min.z() );
|
||||
(*v)[1] = osg::Vec3( bb._max.x(), bb._min.y(), bb._min.z() );
|
||||
(*v)[2] = osg::Vec3( bb._max.x(), bb._min.y(), bb._max.z() );
|
||||
(*v)[3] = osg::Vec3( bb._min.x(), bb._min.y(), bb._max.z() );
|
||||
(*v)[4] = osg::Vec3( bb._max.x(), bb._max.y(), bb._min.z() );
|
||||
(*v)[5] = osg::Vec3( bb._min.x(), bb._max.y(), bb._min.z() );
|
||||
(*v)[6] = osg::Vec3( bb._min.x(), bb._max.y(), bb._max.z() );
|
||||
(*v)[7] = osg::Vec3( bb._max.x(), bb._max.y(), bb._max.z() );
|
||||
|
||||
osg::Geometry* geom = dynamic_cast< osg::Geometry* >( nonConstThis->_queryGeode->getDrawable( 0 ) );
|
||||
geom->setVertexArray( v.get() );
|
||||
|
||||
geom = dynamic_cast< osg::Geometry* >( nonConstThis->_debugGeode->getDrawable( 0 ) );
|
||||
geom->setVertexArray( v.get() );
|
||||
}
|
||||
|
||||
return Group::computeBound();
|
||||
}
|
||||
|
||||
|
||||
// Should only be called outside of cull/draw. No thread issues.
|
||||
void
|
||||
OcclusionQueryNode::setQueriesEnabled( bool enable )
|
||||
{
|
||||
_enabled = enable;
|
||||
}
|
||||
|
||||
// Should only be called outside of cull/draw. No thread issues.
|
||||
void
|
||||
OcclusionQueryNode::setDebugDisplay( bool debug )
|
||||
{
|
||||
_debugBB = debug;
|
||||
}
|
||||
bool
|
||||
OcclusionQueryNode::getDebugDisplay() const
|
||||
{
|
||||
return _debugBB;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void
|
||||
OcclusionQueryNode::setQueryStateSets( osg::StateSet* ss, osg::StateSet* ssDebug )
|
||||
{
|
||||
if (!_queryGeode.valid() || !_debugGeode.valid())
|
||||
{
|
||||
osg::notify( osg::WARN ) << "osgOQ: OcclusionQueryNode:: Invalid support node(s)." << std::endl;
|
||||
return;
|
||||
}
|
||||
|
||||
_queryGeode->setStateSet( ss );
|
||||
_debugGeode->setStateSet( ssDebug );
|
||||
}
|
||||
|
||||
bool
|
||||
OcclusionQueryNode::getPassed() const
|
||||
{
|
||||
return _passed;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
OcclusionQueryNode::createSupportNodes()
|
||||
{
|
||||
GLushort indices[] = { 0, 1, 2, 3, 4, 5, 6, 7,
|
||||
0, 3, 6, 5, 2, 1, 4, 7,
|
||||
5, 4, 1, 0, 2, 7, 6, 3 };
|
||||
|
||||
{
|
||||
// Add the test geometry Geode
|
||||
_queryGeode = new osg::Geode;
|
||||
_queryGeode->setName( "OQTest" );
|
||||
_queryGeode->setDataVariance( osg::Object::DYNAMIC );
|
||||
|
||||
osg::ref_ptr< QueryGeometry > geom = new QueryGeometry( getName() );
|
||||
geom->setDataVariance( osg::Object::DYNAMIC );
|
||||
geom->addPrimitiveSet( new osg::DrawElementsUShort(
|
||||
osg::PrimitiveSet::QUADS, 24, indices ) );
|
||||
|
||||
_queryGeode->addDrawable( geom.get() );
|
||||
}
|
||||
|
||||
{
|
||||
// Add a Geode that is a visual representation of the
|
||||
// test geometry for debugging purposes
|
||||
_debugGeode = new osg::Geode;
|
||||
_debugGeode->setName( "Debug" );
|
||||
_debugGeode->setDataVariance( osg::Object::DYNAMIC );
|
||||
|
||||
osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
|
||||
geom->setDataVariance( osg::Object::DYNAMIC );
|
||||
|
||||
osg::ref_ptr<osg::Vec4Array> ca = new osg::Vec4Array;
|
||||
ca->push_back( osg::Vec4( 1.f, 1.f, 1.f, 1.f ) );
|
||||
geom->setColorArray( ca.get() );
|
||||
geom->setColorBinding( osg::Geometry::BIND_OVERALL );
|
||||
|
||||
geom->addPrimitiveSet( new osg::DrawElementsUShort(
|
||||
osg::PrimitiveSet::QUADS, 24, indices ) );
|
||||
|
||||
_debugGeode->addDrawable( geom.get() );
|
||||
}
|
||||
|
||||
// Creste state sets. Note that the osgOQ visitors (which place OQNs throughout
|
||||
// the scene graph) create a single instance of these StateSets shared
|
||||
// between all OQNs for efficiency.
|
||||
setQueryStateSets( initOQState(), initOQDebugState() );
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user