Re: [osg-users] OpenGL 3.x and OSG
Unless, of course, you're actually trying to create a modern application. Then you really do want core profile and must build OSG for GL3. Otherwise, deprecated OpenGL usage will inevitably creep into your app code. The OSG warnings in the OP's post really do serve a purpose. They alert you to the fact that you're accessing outdated functionality, so that you can proactively remove it. -Paul On Thu, Mar 20, 2014 at 5:47 AM, Alistair Baxter wrote: > If you're only running on Windows, you'd be just as well not trying to > build an OpenGL 3 core profile version of OSG, since by default it will use > the most up-to-date version of OpenGL your card supports (probably > 4.something), with the compatibility profile. > > That way you can get all of the new functionality, and all of the old > functionality too. > > OpenGL's deprecation is only really enforced on OSX, so unless you are > doing a mac port, it's probably easier to ignore it. > > Alistair Baxter > Software Engineer > ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenGL 3.x and OSG
Hi, Noted with thanks! Thank you! Cheers, Boon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=58674#58674 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenGL 3.x and OSG
If you're only running on Windows, you'd be just as well not trying to build an OpenGL 3 core profile version of OSG, since by default it will use the most up-to-date version of OpenGL your card supports (probably 4.something), with the compatibility profile. That way you can get all of the new functionality, and all of the old functionality too. OpenGL's deprecation is only really enforced on OSX, so unless you are doing a mac port, it's probably easier to ignore it. Alistair Baxter Software Engineer We'll be exhibiting at PDAC 2014 from booth #1607, 2nd - 5th March 2014. For further information please visit http://www.mve.com/calendar Midland Valley Exploration Ltd. 144 West George Street Glasgow G2 2HG United Kingdom Tel: +44 (0) 141 332 2681 Fax:+44 (0) 141 332 6792 The structural geology experts ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenGL 3.x and OSG
Hi Boon, This topic has been discussed before. It boils down to the fact, that Materials/TexGen are fixed function pipeline features. So they are disabled with GL3. Long story short: Materials are not support, neither is TexGen. You will have to write your own shaders and define materials via uniforms to get the functionality back. I wrote a visitor for this which would remove the material states from the scene graph and replace them with uniforms to be sent to a shader (which has to be tailored to your needs) cheers Sebastian Hi, I managed to compile OSG 3.2 with GL3.h header. In CMAKE, I have checked only OSG_GL3_AVAILABLE . However, when I run osgviewer.exe cow.osg, I get the following problem. Warning: TexGen::apply(State&) - not supported. Warning: Material::apply(State&) - not supported. I am using Intel HD4000 graphics on Windows 8, with the latest 9.x drivers. I have checked that all OpenGL 3.x features are supported. Can somebody help me explain this problem? Thank you! Boon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=58670#58670 ___ 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
[osg-users] OpenGL 3.x and OSG
Hi, I managed to compile OSG 3.2 with GL3.h header. In CMAKE, I have checked only OSG_GL3_AVAILABLE . However, when I run osgviewer.exe cow.osg, I get the following problem. Warning: TexGen::apply(State&) - not supported. Warning: Material::apply(State&) - not supported. I am using Intel HD4000 graphics on Windows 8, with the latest 9.x drivers. I have checked that all OpenGL 3.x features are supported. Can somebody help me explain this problem? Thank you! Boon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=58670#58670 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
