Hi Alex and Art,
Does osgPPU::Processor do anything to the update/event traversals?
Robert.
On Wed, Sep 17, 2008 at 3:29 PM, alexandre amyot murray
<[EMAIL PROTECTED]> wrote:
> Hi Art and Robert,
>
> First of all I dont use my own viewer class, I use osgViewer. I initialize
> the viewer camera like this to support osgPPU :
>
> // Set single thread model
> viewer_.setThreadingModel(osgViewer::Viewer::SingleThreaded);
>
> // Set the main window position and size
> osg::ref_ptr<osg::GraphicsContext::Traits> traits = new
> osg::GraphicsContext::Traits;
> traits->x = windowProperties_.winXPos_;
> traits->y = windowProperties_.winYPos_;
> traits->width = windowProperties_.winWidth_;
> traits->height = windowProperties_.winHeight_;
> traits->windowDecoration = false;
> traits->doubleBuffer = true;
> traits->sharedContext = 0;
>
> // Set the graphics context for the camera
> osg::ref_ptr<osg::GraphicsContext> gc =
> osg::GraphicsContext::createGraphicsContext(traits.get());
> gc->setClearColor( osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f) );
> gc->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
> gc->clear( );
> viewer_.getCamera()->setGraphicsContext(gc.get());
>
> // Set the viewport
> viewer_.getCamera()->setViewport( viewportProperties_.viewportXPos_,
> viewportProperties_.viewportYPos_,
> viewportProperties_.viewportWidth_,
> viewportProperties_.viewportHeight_ );
>
>
> // Set the projection matrix as perspective
> double aspectRatio;
> if(
> viewportProperties_.viewportWidth_/viewportProperties_.viewportHeight_ >=
> 1.0 )
> aspectRatio =
> viewportProperties_.viewportWidth_/viewportProperties_.viewportHeight_;
> else
> aspectRatio =
> viewportProperties_.viewportHeight_/viewportProperties_.viewportWidth_;
>
> viewer_.getCamera()->setProjectionMatrixAsPerspective(
> cameraProperties_.cameraFovy_,
> aspectRatio,
>
> cameraProperties_.cameraZNear_, cameraProperties_.cameraZFar_ );
>
> // Positioning the camera
> osg::Matrix camTrans;
> camTrans.makeTranslate( cameraProperties_.cameraPos_.x(),
> cameraProperties_.cameraPos_.y(), -cameraProperties_.cameraPos_.z() );
> viewer_.getCamera()->setViewMatrix( camTrans );
>
> // tell the camera to use OpenGL frame buffer object where supported.
>
> viewer_.getCamera()->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
>
> // create texture to render to
> osg::Texture* texture = createRenderTexture(
> viewportProperties_.viewportWidth_, viewportProperties_.viewportHeight_,
> false );
> osg::Texture* depthTexture = createRenderTexture(
> viewportProperties_.viewportWidth_, viewportProperties_.viewportHeight_,
> true);
>
> // attach the texture and use it as the color and depth buffer.
> viewer_.getCamera()->attach(osg::Camera::COLOR_BUFFER, texture);
> viewer_.getCamera()->attach(osg::Camera::DEPTH_BUFFER, depthTexture);
>
> Ok then I build my particle scene using osgParticle. I use a ModularEmitter
> for the placer, shooter and counter.
>
> Finally I set the osgPPU::Processor and attach all the unit I need for the
> shader rendering. Then I set the viewer scene data and start the main loop
> which look like this :
>
> osg::Group * rootGroupNode = new osg::Group();
> rootGroupNode->addChild( myParticleScene );
> rootGroupNode->addChild( myOsgPpuProcessor );
> viewer_.setSceneData( rootGroupNode_.get() );
>
> while (!viewer_.done())
> {
> if( checkForNewMedias() )
> updateSceneWithMedia();
>
> updateScene();
>
> // Draw the next frame.
> rendering_ = true;
> viewer_.frame();
> rendering_ = false;
>
> Sleep(1);
> }
>
> And the application crash with the error message I provide you. If I comment
> these lines in my viewer application :
>
> // Set single thread model
> //viewer_.setThreadingModel(osgViewer::Viewer::SingleThreaded);
>
> // tell the camera to use OpenGL frame buffer object where supported.
>
> //viewer_.getCamera()->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
>
> // create texture to render to
> //osg::Texture* texture = createRenderTexture(
> viewportProperties_.viewportWidth_, viewportProperties_.viewportHeight_,
> false );
> //osg::Texture* depthTexture = createRenderTexture(
> viewportProperties_.viewportWidth_, viewportProperties_.viewportHeight_,
> true);
>
> // attach the texture and use it as the color and depth buffer.
> //viewer_.getCamera()->attach(osg::Camera::COLOR_BUFFER, texture);
> //viewer_.getCamera()->attach(osg::Camera::DEPTH_BUFFER, depthTexture);
>
> And don't attach the osgPPU::Processor to my rootGroupNode, everything works
> well.
>
> Hope I gave you enough informations, if you need more I'll provide you.
>
> Thanks
>
> Alex
>
>
>
>
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
