Re: [osg-users] crash in osgviewer on Linux

On Tue, 2008-10-14 at 09:58 +1300, Hartmut Seichter wrote: > Dear osg'ler Following scenario: > > Quad Core 2 with three NVIDIA 260 GTX - SLI is installed but not used - > four screens (final setup will have six), no Xinerama (this performs > even worse). OSG is build with Xrandr support so it w

[osg-users] Using osgUtil::RenderStage for selective lighting

Hi everyone, This is my first post to osg-users, and I'd like to thank everyone who has contributed to OpenSceneGraph. I have found it to be indispensable. Currently I am modifying a Delta3D-based engine to select the most influential lights around an object, to allow our artists to place any num

[osg-users] crash in osgviewer on Linux

Dear osg'ler Following scenario: Quad Core 2 with three NVIDIA 260 GTX - SLI is installed but not used - four screens (final setup will have six), no Xinerama (this performs even worse). OSG is build with Xrandr support so it works as is with the four screens Ubuntu 8.04.1 + latest patches,

[osg-users] OpenThreads/pthreads & OpenMP on RHEL5.2 take 2

Hi, I found some code that tests pthread_setaffinity_np at http://www.thinkingparallel.com/2006/08/18/more-information-on-pthread_setaffinity_np-and-sched_setaffinity. I added to prints immediately before the 2 calls to pthread_setaffinity_np in thread_func. It compiles and runs fine for me.

Re: [osg-users] OpenThreads/pthreads & OpenMP on RHEL5.2

Hi Ralf, I haven't seen a problem like this reported before. The OSG itself does run multi-threaded and make use of multi-processors, but I have never played with OpenMP so can't vouche that there isn't some potential issue with mixing the two - it does surprise me though. The affinity functions

Re: [osg-users] segfault: osgDB::DatabasePager::FindCompileableGLObjectsVisitor::apply

Hi Melchior, Thanks for the update. It's good to hear that things are now working. Whether it was a false alarm or just a symptom of very subtle threading bug I'd leave till the new DatabasePager has been thrashed for a few more years :-) Robert. On Mon, Oct 13, 2008 at 5:29 PM, Melchior FRAN

Re: [osg-users] FBO performance in osgprerender example

Hi Alex, If your frame rate drops when you zoom it suggests you are fill limited which shouldn't be related to the FBO/PixelBuffer/FrameBuffer choice for the RTT as it's res is fixed. Hight RT cost would make give the app less time to do this fill so perhaps the extra fill is just the final stra

[osg-users] OpenThreads/pthreads & OpenMP on RHEL5.2

Hello, I am trying to use OpenMP inside an application that uses OpenSceneGraph. I can get OpenMP to use multiple threads inside my examples, but NOT inside my my OpenSceneGraph app. I think that I may have tracked the problem down to the use of sched_setaffinity inside files in .../OpenT

Re: [osg-users] segfault: osgDB::DatabasePager::FindCompileableGLObjectsVisitor::apply

* Melchior FRANZ -- Monday 06 October 2008: > But next time I'll be a bit more aggressive hunting it down. There was no "next time". I had cleaned out osg and our flightgear libs, updated and compiled a few times, and that segfault didn't appear every since. Sorry for the false alarm! :-) m. ___

[osg-users] Soliciting osgWidget Advice (osgWidget::Frame)

Hello folks. :) So, I'm working on osgWidget::Frame (a 3x3 table-like Window class that has 4 corners, 4 borders, and a center viewable area). What I'm wanting to do is borrow the World of Warcraft (we should remember here that they have almost 10 million users and an unfathomably large UI modding

Re: [osg-users] Problem with OpenThreads::Atomic when buildingapplication with OSG 2.6.0 on SUSE 10.2

Hi, On Friday 10 October 2008 17:27, Björn Blissing wrote: > I have dug down on this problem during the day. > The problem is that the code that checks if ATOMIC should use GCC BUILTIN > fails. > > I have traced this failure to the combination of the XEON processor and GCC > version. > > But if I

[osg-users] FBO performance in osgprerender example

Hi all, I am using OSG 2.6.0 on Linux. I am currently trying to render a subgraph of my scene to texture and then use that rendering again visibly at another place in my scene. I am experiencing some performance problems I would not expect: When using an unmodified osgprerender example on a 1680x

Re: [osg-users] Caching Nodes is not a threadsafe operation

HI Richard, Which version of the OSG are you using? The OSG has had mutex protection of addParents/removeParent() for quite some while. Robert. On Mon, Oct 13, 2008 at 7:59 AM, Schmidt, Richard <[EMAIL PROTECTED]> wrote: > Osg has the option to cache nodes by using osgDB:Registry. Retrieving a

Re: [osg-users] SharedStateManager does not releaseGLObjects

Hi Richard, Could you please put all these SharedStateManager comments into a single thread, as they area clearly all related, this will make it easier to keep track of things. I personally haven't used the SharedStateManager and I'm not the author of this code so can't dive in and answer all que

Re: [osg-users] osgText::getGlyphQuads

Hi Yang, The GlyphQuads are supposed to be be internal data structures that aren't accessed externally, so if you are needing access to them then it suggests that public API really needs to tweaking to give you access to what you want without grappling with the internals. Why not have a bash at a

[osg-users] Skew-matrix domain transfer

FYI -- I'm transferring the skew-matrix.com domain to a new host. In the interim, you can expect some bounces to my email address as well as problems reaching my web site. I apologize for any inconvenience. If you must contact me immediately, call me, or email me at pmartz 'at' frii 'dot' com. Pa

Re: [osg-users] Porting RenderMonkey's NightSky Effect to OSG in GLSL

Hello, Just guessing: But this looks like wrong Texture-Repeating to me. hth Hi All, I want to create sky night effect on simple quad.3ds model with using GLSL like RenderMonkey-> Examples-> GL2->ScreenSpace Effects->NightSky. I opened up render monkey and analyzed the given sample and it'

Re: [osg-users] how to know a node whether in the viewport?

hi Why not just use the cameraLookAt to compute camera direction ? the node will always be seen from the camera... Vincent. 2008/10/13 forest37 <[EMAIL PROTECTED]> > > > hi all, > I set a animationpath to a node,how can i know whether the node is > moved outside of the viewport? > wh

Re: [osg-users] how to know a node whether in the viewport?

Hi forest, Why don't you use nodeTrackerManipulator to trace the expected node. So you can always make this node in the vieweport. Hope this helps. Umit Uzun 2008/10/13 forest37 <[EMAIL PROTECTED]> > > > hi all, > I set a animationpath to a node,how can i know whether the node is > moved

Re: [osg-users] Is OSG Website down?

Is up and running again! this time was our server, I will check out why and schedule a global update... that will be a horrible headache but is mandatory. thank you all for your patience, and sorry for all the inconveniences. Jose L. On Sun, Oct 12, 2008 at 7:58 PM, James Moliere <[EMAIL PROTECT

[osg-users] how to know a node whether in the viewport?

hi all, I set a animationpath to a node,how can i know whether the node is moved outside of the viewport? what i want to do is this:when the node is moved outside of the viewport ,I will change the camera's position to make sure the node is seen all the time.So,what should i do?

[osg-users] Porting RenderMonkey's NightSky Effect to OSG in GLSL

Hi All, I want to create sky night effect on simple quad.3ds model with using GLSL like RenderMonkey-> Examples-> GL2->ScreenSpace Effects->NightSky. I opened up render monkey and analyzed the given sample and it's look like THAT

[osg-users] Caching Nodes is not a threadsafe operation

Osg has the option to cache nodes by using osgDB:Registry. Retrieving a node from the cache and attaching them to your subgraph is not threadsafe, because Node::addParent, Node::removeParent and Node::getParents is not threadsafe. Consider this scenario: A node gets 'disposed' in the main threa

[osg-users] SharedStateManager does not releaseGLObjects

SharedStateManager does not release any GLObjects (like TextureAttributes, for instance). Possible solution osg::Registry::releaseGLObjects calls a SharedStateManager::releaseGLObjects which releases the GLObjects of the shared Statesets and TextureAttributes. Richard Richard Schmidt

[osg-users] SharedStateManager does not check on already compiled TextureAttributes

The ShareStateManager:isShared( ... ) Method does not compare on shared TextureAttributes, but only on shared StateSets. A StateSet (and its TextureAttribute) will get compiled, even if its TextureAttributes are already shared. The causes the texture to be uploaded (when compiling) and being releas

[osg-users] SharedStateManager and autoUnrefImageAfterApply

Hi, the SharedStateManager is not able to share TextureAttributes which have the UnrefImageAfterApply flag set. Unreffing the images will 'change' the TextureAttribute with regard to its comparison operator. (i.e. image name, image data, etc.) There are several solutions for this problem: *