Re: [osg-users] Single scene, multiple viewers : problem with texture
Hi Aurelien, Sorry for the slow reply, no trying to catch up on my email backlog... osgViewer::CompositeViewer is designed for applications that have multiple Views and your usage model fits this perfectly. The only thing to be careful of is when you are adding and removing View's from the CompositeViewer you should do is calling stopThreading() on the viewer prior to adding or removing views, then call startThreading() afterwards. If you are running SingleThreaded or CullDrawThreadPerContext you won't need to worry about stop and starting threads. Robert. On 29 November 2011 15:55, Aurelien Albert aurelien.alb...@alyotech.fr wrote: Hi Robert, In my application, there is a main viewer to edit the scene, and the user can open/close secondary viewer windows. These secondary viewer windows are not limited in number (sure, there is hardware limits...) and the camera is independant from the other viewers (to see different point of view). So when user open a new secondary viewer window, I create a new viewer instance, a new camera, and the context is shared with the main window. When user close a secondary window, I delete the associated viewer to release some resources. The secondary windows can also be resized, so the viewport is also independant. Each viewer (main and secondary) are embeded in a Qt widget. Is there any way to do this with a composite viewer ? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44119#44119 ___ 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
Re: [osg-users] Single scene, multiple viewers : problem with texture
Hi, Can you explain what you mean by dynamically linking the node ? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44088#44088 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Single scene, multiple viewers : problem with texture
I found the solution : Using the osgUtil::Optimizer::TextureVisitor to set all textures to UnrefImageAfterApply = false -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44104#44104 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Single scene, multiple viewers : problem with texture
HI Aurelien, You should use multiple View's within a single CompositeViewer for doing this rather than multiple viewers. Robert. On 28 November 2011 16:15, Aurelien Albert aurelien.alb...@alyotech.fr wrote: Hi, I've got a problem when viewing the same scene from two different viewers : - Viewer A with Camera A - Viewer B with Camera B I load a node with : Code: osg::ref_ptrosg::Node pNode = osgDB::readNodeFile(...); Then I do : Code: p_viewerA-setCamera(p_cameraA); p_viewerA-setSceneData(pNode); p_viewerB-setCamera(p_cameraB); p_viewerB-setSceneData(pNode); Everything works fine, but when viewer B is deleted, pNode's textures are no more rendered in viewer A (geometry is still rendered correctly). Is there anything special to do to share data between two viewer ? Thank you! Cheers, Aurelien -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44072#44072 ___ 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
Re: [osg-users] Single scene, multiple viewers : problem with texture
Hi Robert, In my application, there is a main viewer to edit the scene, and the user can open/close secondary viewer windows. These secondary viewer windows are not limited in number (sure, there is hardware limits...) and the camera is independant from the other viewers (to see different point of view). So when user open a new secondary viewer window, I create a new viewer instance, a new camera, and the context is shared with the main window. When user close a secondary window, I delete the associated viewer to release some resources. The secondary windows can also be resized, so the viewport is also independant. Each viewer (main and secondary) are embeded in a Qt widget. Is there any way to do this with a composite viewer ? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44119#44119 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Single scene, multiple viewers : problem with texture
Hi, I've got a problem when viewing the same scene from two different viewers : - Viewer A with Camera A - Viewer B with Camera B I load a node with : Code: osg::ref_ptrosg::Node pNode = osgDB::readNodeFile(...); Then I do : Code: p_viewerA-setCamera(p_cameraA); p_viewerA-setSceneData(pNode); p_viewerB-setCamera(p_cameraB); p_viewerB-setSceneData(pNode); Everything works fine, but when viewer B is deleted, pNode's textures are no more rendered in viewer A (geometry is still rendered correctly). Is there anything special to do to share data between two viewer ? Thank you! Cheers, Aurelien -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44072#44072 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Single scene, multiple viewers : problem with texture
Aurelien wrote: Hi, I've got a problem when viewing the same scene from two different viewers : - Viewer A with Camera A - Viewer B with Camera B I load a node with : Code: osg::ref_ptrosg::Node pNode = osgDB::readNodeFile(...); Then I do : Code: p_viewerA-setCamera(p_cameraA); p_viewerA-setSceneData(pNode); p_viewerB-setCamera(p_cameraB); p_viewerB-setSceneData(pNode); Everything works fine, but when viewer B is deleted, pNode's textures are no more rendered in viewer A (geometry is still rendered correctly). Is there anything special to do to share data between two viewer ? Thank you! Cheers, Aurelien Well, I would look at it differently (like using slave cameras), but in this case, have you tried dynamically linking the node? D Glenn David Glenn --- D Glenn 3D Computer Graphics amp; Media Systems. www.dglenn.com -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44083#44083 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
