Re: [osg-users] FBO and AntiAliasing
Hi Paul, On Mon, May 19, 2008 at 12:51 PM, [EMAIL PROTECTED] wrote: The OSG's FBO implementation doesn't yet support anti-aliasing, but it shouldn't be difficult extension to add support for. I do have this on my TODO list, just unfortunately quite within grasp as I've been so swamped with other work. Robert. Has this been implemented yet in the latest version of OSG? Note yet. There is a submission for adding anti-aliasing to FBO, but it's written against OSG-1.2. I have done a review, but didn't port the work to 2.3.x at the time as it was non trivial and I was just swamped with other work. It's still on my TODO list. Feel free to tackle this yourself if I don't get on to tackling it soon enough. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] FBO and AntiAliasing
Hi, Robert, As you know, I'm current doing volume rendering work. Currently I've done a GPU voxelization using FBO but the sawtooth of the images greatly affects the result. So I'm very expecting FBO with anti-aliasing and please let know where the code with OSG1.2? I can have a reference. Thanks. Robert Osfield wrote: Hi Paul, On Mon, May 19, 2008 at 12:51 PM, [EMAIL PROTECTED] wrote: The OSG's FBO implementation doesn't yet support anti-aliasing, but it shouldn't be difficult extension to add support for. I do have this on my TODO list, just unfortunately quite within grasp as I've been so swamped with other work. Robert. Has this been implemented yet in the latest version of OSG? Note yet. There is a submission for adding anti-aliasing to FBO, but it's written against OSG-1.2. I have done a review, but didn't port the work to 2.3.x at the time as it was non trivial and I was just swamped with other work. It's still on my TODO list. Feel free to tackle this yourself if I don't get on to tackling it soon enough. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org __ Information from ESET NOD32 Antivirus, version of virus signature database 3108 (20080519) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] FBO and AntiAliasing
On Mon, May 19, 2008 at 3:01 PM, hesicong2006 [EMAIL PROTECTED] wrote: Hi, Robert, As you know, I'm current doing volume rendering work. Currently I've done a GPU voxelization using FBO but the sawtooth of the images greatly affects the result. So I'm very expecting FBO with anti-aliasing and please let know where the code with OSG1.2? I can have a reference. Thanks. Have a look at the osg-submissions archives. However, for volume rendering I wouldn't have thought using anti-aliasing would be the right approach - rather change the sampling of the 3D texture you use in rendering. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] FBO and Antialiasing
On Feb 15, 2008 6:53 PM, [EMAIL PROTECTED] wrote: What is the status of FBO Anti-Aliasing? It doesn't look like it is in 2.3.4. Still waiting for someone to have the time to read the specs and implement the feature. Any idea what I need to do to get FBO Anti-Aliasing. I'm currently using OSG 1.2. See above :-) ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] FBO and Antialiasing
What is the status of FBO Anti-Aliasing? It doesn't look like it is in 2.3.4. Any idea what I need to do to get FBO Anti-Aliasing. I'm currently using OSG 1.2. Paul - Original Message From: Robert Osfield [EMAIL PROTECTED] To: OpenSceneGraph Users osg-users@lists.openscenegraph.org Sent: Friday, January 25, 2008 4:47:48 AM Subject: Re: [osg-users] FBO and Antialiasing Hi Stephane, The OSG's FBO implementation doesn't yet support anti-aliasing, but it shouldn't be difficult extension to add support for. I do have this on my TODO list, just unfortunately quite within grasp as I've been so swamped with other work. Robert. On Jan 24, 2008 9:49 PM, Stephane Lamoliatte [EMAIL PROTECTED] wrote: Hi, I want to know if it is possible to render a scene to a frame buffer object with antialiasing (MSAA). If it is possible, how to do that with OpenSceneGraph ? -- Stephane Lamoliatte ___ 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 Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] FBO and Antialiasing
Hi Stephane, The OSG's FBO implementation doesn't yet support anti-aliasing, but it shouldn't be difficult extension to add support for. I do have this on my TODO list, just unfortunately quite within grasp as I've been so swamped with other work. Robert. On Jan 24, 2008 9:49 PM, Stephane Lamoliatte [EMAIL PROTECTED] wrote: Hi, I want to know if it is possible to render a scene to a frame buffer object with antialiasing (MSAA). If it is possible, how to do that with OpenSceneGraph ? -- Stephane Lamoliatte ___ 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] FBO and Antialiasing
3 options (there may be others) 1) Depending on the fidelity you need, render to a fbo some factor the desired size of your target then downsample in fragment shader (Alternatively, use generate mipmaps in the camera-attach() when you apply the target to your fbo and let the gpu downsample for you). This is the easiest to implement and produces adequate results in most cases. 2) Get yourself an NV80 based (i.e. 8800 or quadro 5600) graphics card and modify the osg framebuffer cpp file to use the nvidia multisample frame buffer extension. 3) Write your own custom multipass antialias routine for each object in your scene (do this if you have lots of development time and want full control over your scene) From: [EMAIL PROTECTED] on behalf of Stephane Lamoliatte Sent: Thu 1/24/2008 3:49 PM To: OpenSceneGraph Users Subject: [osg-users] FBO and Antialiasing Hi, I want to know if it is possible to render a scene to a frame buffer object with antialiasing (MSAA). If it is possible, how to do that with OpenSceneGraph ? -- Stephane Lamoliatte ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org winmail.dat___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
