Sharing GLContext's

OpenGL Development JOGL Development
#1

I’ve never used the GLContext sharing capabilities built into jogl and I’m hesitant to write anything using it since it isn’t guaranteed that it will even work. I was wondering if anyone with experience in this matter know how likely the following situation would be able to have a successful sharing:

A desktop that has both the client and server side of the GL on the same graphics card, so just a basic home setup and not a fancy network/distributed workstation setup. I would create a GLCanvas and then share it’s GLCanvas with an even newer GLCanvas so that it can share things like vbo’s and textures.

Thanks

#2

This should work fairly portably. I did recently run into a situation where Intel’s graphics drivers on Vista didn’t support sharing between two OpenGL contexts, which is pretty broken, but that’s the only occurrence I’m aware of.

#3

Thanks, I’m not going to worry very much about vista, in my mind I just pretend that xp is still the latest windows out there.

#4

Do you know the specifics on this problem? Any resolution? Do recent Intel drivers help?

I have a user who just switched to Vista with Mobile Intel 965 Express Chipset, driver version 7.14.10.1230, and it is apparently failing to share contexts, with an error code 0 out of WGL.wglShareLists

#5

I believe that’s the same problem I ran into. If I were you I’d report this bug to Intel.

#6

Actually I’ve raised this bug with a couple of contacts at Intel, but I haven’t heard anything from them in a while so I’d still recommend you file a bug with whatever web form or email address they have available.