Hi Benoit, I would recommend just creating a small example that just has a single RTT camera set up with a float point texture and then see how you get on. Once you are happy with this move up to more complicated combinations.
Robert. On 9/7/07, Benoit bossavit <[EMAIL PROTECTED]> wrote: > Hi all, > > I have a class overloading an osg::Group. I overload the "traverse" method > to apply 3 shaders passes to draw the scene > > create shader1_stateset > create shader2_stateset > create shader3_stateset > > void traverse(osg::NodeVisitor& nv) > { > > if(nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR)) > { > osgUtil::CullVisitor *cv = > dynamic_cast<osgUtil::CullVisitor *>(&nv); > cv->pushStateSet(shader1_stateset); > osg::Group::traverse(nv); > cv->popStateSet(); > > osgUtil::CullVisitor *cv = > dynamic_cast<osgUtil::CullVisitor *>(&nv); > cv->pushStateSet(shader2_stateset); > osg::Group::traverse(nv); > cv->popStateSet(); > > osgUtil::CullVisitor *cv = > dynamic_cast<osgUtil::CullVisitor *>(&nv); > cv->pushStateSet(shader3_stateset); > osg::Group::traverse(nv); > cv->popStateSet(); > } > } > > This algorithm works, but now I want to do Render To Texture in floatting > point. I tried retrieve the camera and set the targetImplementation with a > FBO and attach a floatting texture, but the texture keep empty at the end. > How can I do? > Someone have an idea? > > void traverse(osg::NodeVisitor& nv) > { > > if(nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR)) > { > > if(nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR)) > { > if > (cv->getRenderStage()->getCamera()->getRenderTargetImplementation() > != osg::Camera::FRAME_BUFFER_OBJECT) > { > > cv->getRenderStage()->getCamera()->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); > > cv->getRenderStage()->getCamera()->attach(osg::Camera::COLOR_BUFFER,m_hdrTexture); > } > ... > .... > } > } > } > > > Thanks > > bnua > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org