[osg-users] position list

Hi, I just saw setPosition() from OSG Billboard, what is the _positionList for? why define multiple positions for a Billboard? For what could you use multiple Positions? Cheers, David ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] position list

Hi you can add several drawables to billboard with different positions, and setPosition is there to change position of previously added drawable. Cheers. 25.01.2013, 13:30, DavidHornung horn...@googlemail.com: Hi, I just saw setPosition() from OSG Billboard, what is the _positionList for?

[osg-users] ARB_instanced_arrays

Hello, I've just stumbled across the ARB_instanced_array extension [http://sol.gfxile.net/instancing.html] It seems to be the most efficient way to handle instanced drawing. Can someone help me out to do this in OpenSceneGraph? As I see, the glVertexAttribDivisor is needed for this, but I'm

[osg-users] Method for Converting FLT files to use DDS Textures

This isn't a direct OSG question, but one I was hoping people on this list might be able to help out with. We have several thousand FLT files that use rgbs as textures. Unfortunately we can't convert these to ive or osgb files as they are shared with another application that is not made in OSG and

Re: [osg-users] Method for Converting FLT files to use DDS Textures

Hi Karl, Have you tried using the OSG's write support for OpenFlight, the process would be opening the original model, convert the textures to dds, record the new filename then write out to .flt. Another approach would be cheat ;-) The trick would be to leave the OpenFlight database as is and

[osg-users] Remove node runtime from another thread

Hi, I want to remove and add a child from/to a group runtime, while rendering is running, moreover, I am doing this from a different thread. What is the thread safe way to do it? Which callback should I use, or how would you do it? If I remove the node in the update callback I get crashes. On

Re: [osg-users] Remove node runtime from another thread

Hi Peter, On 25 January 2013 14:24, Peter Bako osgfo...@tevs.eu wrote: I want to remove and add a child from/to a group runtime, while rendering is running, moreover, I am doing this from a different thread. What is the thread safe way to do it? Which callback should I use, or how would you

[osg-users] API changelog for OSG3

Hi, I am using OSG2.8.2, and recently am trying to upgrade, I am following the cumulative changelogs already but I appreciate if there is any document that explains any possible API changes (I have not seen any). It seems I should be able to start with 3.0 but then I wonder why 2.8 is still

Re: [osg-users] API changelog for OSG3

Hi Ehsan, For the most part the common API of 2.8.x and 3.0.x has been maintained so applications should port from 2.8.x to 3.0.x easily. Often it will simply be a case of recompiling against the new version, occasionally you might find a difference, if you do just ping the list or have a look

Re: [osg-users] VBO as default

This is a great topic and I am very interested to learn the facts about this. In osgEarth using display lists (on my NVIDIA GTX275) yields a sizable performance boost over VBOs in many scenarios. In some of my tests I've seen a 50%+ reduction in DRAW and GPU times. But there are strange

Re: [osg-users] API changelog for OSG3

On 1/25/2013 8:47 AM, Ehsan Azar wrote: It seems I should be able to start with 3.0 but then I wonder why 2.8 is still popular. In my experience providing OSG consulting and dev services, some of my customers are content with the stability of 2.8.5 (June 2011), and have no particular need

Re: [osg-users] Remove node runtime from another thread

Hi robert, thank you for the reply If using an update callback you have to be careful about invalidating iterators for the thread calling the update callback. Do you have an example, where this is done? what iterators should I check? Yes, as I do it now - sometimes it crashes, and the

Re: [osg-users] API changelog for OSG3

Paul and Robert, Thank you that is exactly the information I was looking for, and for the reference both 2.8.5 and 3.0.1 linked fine and so far I do not see any issues. Well, even 2.8.2 was working great, OSG is an excellent software. I guess I will update to 2.8.5, and then to 3.0.1 later

Re: [osg-users] [osgPlugins] osgShadow LiSPSM culling problem

Hi Robert, I checked the svn/trunk last week and as you said the clipping problem seems to have been resolved. After exploring your new VDSM implementation further, it seems that there is a bug with the ReceivesShadowTraversalMask (or I am missing something). If I turn off this mask bit the

Re: [osg-users] API changelog for OSG3

I'd wait until the next stable release before going with 3. There's several bugs in the 2.9.x/ 3 releases that have been resolved. Such as incorrect text rendering, buggy slow path rendering and some sort of GL resource handling bug that was causing reuse of invalid display lists. These have all

Re: [osg-users] BAK extension

In my experience a .bak file is typically an indication that the file is a back-up copy of a file. Many programs that run active log files typically copy the current log file to .bak etc As to a data, model, texture format that use a .bak extention I have never come across one