Re: [osg-users] osgWidget Frame borders
I am having this same problem here. Did anyone find a solution for it? Does anyone not have this problem? Thanks, Alex -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53120#53120 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Callback for resize events
Ok, i'll go with the cull callback workaround since i am working on a big project and do not want to mess with a global handler. Thanks for the reply! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=52763#52763 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Callback for resize events
Hi, I currently have a shader that needs the screen resolution as an Uniform. Is there a simple way to have the resolution uniform updated by a resize event? Thank you! Cheers, Alexandre -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=52742#52742 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Tessellation shaders not working with Radeon Cards
Just tested with Intel HD Graphics 4000 and it is not working as well. It seems to be a different problem than the AMD one though. ... Thank you! Cheers, Alexandre -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51986#51986 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Drawable init method?
Sorry about this delay, i did not notice when i looked and the compileGLObjects method that it was also const, which still confuses me. First of all thanks for the explanation! Still, how is one supposed to create any opengl element (VBOs, textures...) to use inside the drawImplementation method when overriding it? I apologize if it is something simple and i am not seeing it, but i havent found an example that has such scenario. If there is one, could someone please point me to it? Thanks in advance! Cheers, Alexandre -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51961#51961 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Drawable init method?
Hummm, now i understand. I really makes perfect sense. I will follow your advice and implement the gl objects in a multibuffered way then. Thanks a lot for the explanation, it really helped. Cheers, Alexandre -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51964#51964 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Drawable init method?
Ok, that was exactly what i needed. Thanks a lot! Cheers, Alex -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51624#51624 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Drawable init method?
Hi, I just figured out that i was having a lot of trouble when creating vbos inside a drawable because there was no opengl context set during its initialization. After searching for a while i found out that if i initialized the vbos inside drawImplementation method then everything would work. There is one problem however, drawImplementation is const. I ended up setting all my members to mutable and all my methods to const so i could make it work. And now it is working. Isn't there a more proper way of initializing stuff inside a drawable? I would expect a initialize method or something like it, or a non const drawImplementation method. I also tried to set the context before initializing the drawable without using the drawImplementation method to no avail. Thanks a lot fellows Cheers, Alexandre -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51451#51451 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Tessellation shaders not working with Radeon Cards
Hi, I have been trying to render using tessellation shaders with OSG in a Win7 x64 with 2 different Radeon cards (obviously with support for hardware tessellation) but they are behaving very strangely. They show nothing in FILL mode but work in LINE or POINT mode. Also, even in these modes backface culling culls everything... I have tested with NVidia cards and everything seemed to work normally. The very osg example osgtessellationshaders is not working here. Tried with OSG 3.0.1 and 3.1.2, already updated the AMD drivers and none worked. BTW, when i used OpenGL code inside an OSG node everything seems to work fine. Has anyone successfuly executed the osgtessellationshaders in a win7 x64 with a radeon card? EDIT: After trying to isolate the problem, it seems that the first 2 vertices of every patch that is passed to osg are repeated for the rest of the patches. I.e. when passing an index array of (1,3,2,0) and a vertex array of (A,B,C,D), i expected to receive in the shader a primitive (B,D,C,A), but i receive (B,D,D,B). Htat is, the first to indices are always repeated. I do not have much experience with osg, so I cannot investigate much further than that. ... Thank you! Cheers, Alexandre -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51340#51340 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Tessellation shaders not working with Radeon Cards
Hi, i have also tried to post this in the forum, but my account there is moderated since i created it and i don't know why, so i am trying to get in touch with the community here. If the post gets repeated please delete it. I have been trying to render using tessellation shaders with OSG in a Win7 x64 with 2 different Radeon cards (obviously with support for hardware tessellation) but they are behaving very strangely. They show nothing in FILL mode but work in LINE or POINT mode. Also, even in these modes backface culling culls everything... I have tested with NVidia cards and everything seemed to work normally. The very osg example osgtessellationshaders is not working here. Tried with OSG 3.0.1 and 3.1.2, already updated the AMD drivers and none worked. BTW, when i used OpenGL code inside an OSG node everything seems to work fine. Has anyone successfuly executed the osgtessellationshaders in a win7 x64 with a radeon card? After trying to isolate the problem, it seems that the first 2 vertices of every patch that is passed to osg are repeated for the rest of the patches. I.e. when passing an index array of (1,3,2,0) and a vertex array of (A,B,C,D), i expected to receive in the shader a primitive (B,D,C,A), but i receive (B,D,D,B). Htat is, the first to indices are always repeated. I do not have much experience with osg, so I cannot investigate much further than that. Thanks Alexandre Valdetaro ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
