Re: [osg-users] Performance regression 3.6.3 vs 3.4.0
Hi Robert, To clarify what I meant by 'link'. If you post on the forum, a matching email would go to the mailing list. At some point that stopped working - various SMTP errors would display and so on. Simply put, if someone posts on the forum, I don't think this mailing list gets the message. Andrew On Thu, Aug 8, 2019 at 1:16 AM Robert Osfield wrote: > Hi Andrew, > > Forgot to ask: > > On Wed, 7 Aug 2019 at 23:43, Andrew Cunningham > wrote: > >> The link to the mailing list failed some time ago. >> > > I am not aware of any stability issues on the osg-users mailing list, so > this might be an issue with the link. Could you point me at the webpage > where you had an issue with the link? > > Robert. > > ___ > 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] [3rdparty] ImGui integration again
Hi all, I would like to use dear ImGUI with openscenegraph. I see that the argument is already been discussed on this mailing list in 2017 (https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg75576.html). Is there any news about that? Is there a usable library that does the interaction or that would be a good starting point for my own library? Greetings, Noè ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Performance regression 3.6.3 vs 3.4.0
Hi Andrew, Forgot to ask: On Wed, 7 Aug 2019 at 23:43, Andrew Cunningham wrote: > The link to the mailing list failed some time ago. > I am not aware of any stability issues on the osg-users mailing list, so this might be an issue with the link. Could you point me at the webpage where you had an issue with the link? Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Performance regression 3.6.3 vs 3.4.0
Hi Andrew On Wed, 7 Aug 2019 at 23:43, Andrew Cunningham wrote: > Firstly, has anyone noticed that http://forum.openscenegraph.org is > basically off-line and has been malfunctioning for some time. > I think it was back working after a bit offline while I was away on holiday, hadn't checked it recently (I don't admin the forum), checking this morning it's offline again. As a workaround for the above issue, and as I don't have any role in management of the forum I took over admin of the osg-users googlegroups mirror and enable it's use as a forum, though as the forum came backonline I didn't announce it: https://groups.google.com/forum/#!forum/osg-users So perhaps it's time to just default to the googlegroup. > The link to the mailing list failed some time ago. > > In any case > > I have noticed a serious performance regression when moving to 3.6.3 from > 3.4.0 > > It's become such an issue for me, such that I had to revert to 3.4.0. > > The problem starts with Geometry::addPrimitiveSet > > . > > I can eventually work around the issue, by doing my work to coalesce > PrimitiveSets , but might be a FYI for some users. > Just how many PrimitiveSet are you using? It has to be pretty extreme to cause performance issues when creating the scene. My guess is that this slow down in creating the model is could be thought of as a canary in the coal mine. OpenGL and modern hardware really don't like being passed primitive data in small chunks, it's a huge performance bottleneck having large number of small bottlenecks. You will for sure get better performance when creating and rendering your scene once you starting using a small number of primitive sets with a large number of primitives. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
