Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Adrian Egli OpenSceneGraph (3D)
Hi Robert, OSG SVN on Windows Vista, VS8, NVidia Quatro 570M, Dual Core, builds and runs fine. osgshaders.exe osgthirdpersonview.exe hangs on exit. other application runs without any restriction. regards adrian 2008/7/1 Robert Osfield [EMAIL PROTECTED]: Hi Jason, On Tue, Jul 1, 2008 at

[osg-users] getColorIndices usage

2008-07-02 Thread Tomas Hnilica
Hello all OSG users, does anyone know how to use the Geometry::getColorIndices() method? I do not know how to work with the returned IndexArray - how to access and change the values. My situation: Geometry uses generally one color and sometimes it's necessary to draw some primitiveSets by

Re: [osg-users] Performance hit caused by porting from VS 7.1 to VS 9

2008-07-02 Thread Robert Osfield
Hi Rick, Do the express editions do full optimizations? I recall previously MS used to cap the optimization on the give away versions of VS. Robert. On Tue, Jul 1, 2008 at 10:13 PM, Rick Pingry [EMAIL PROTECTED] wrote: Hello All, We have succesfully ported from OSG 1.2 to the newest SVN

Re: [osg-users] mouse/viewport issues with CompositeViewer

2008-07-02 Thread Robert Osfield
Hi Bob, Yes moving to 2.5.3 or SVN will fix this issue. Robert. On Wed, Jul 2, 2008 at 12:28 AM, Bob Balfour [EMAIL PROTECTED] wrote: I am wondering about the status of this bug/fix (below) that I originally saw discussed back in late Feb. by Paul M., Jean-Sebastien and Robert, and again in

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Robert Osfield
Hi Adrian, Did these examples previously work for you? If so which versions of the OSG? Could you run these examples in a debugger and break them once they hang to find out where they are hanging. Cheers, Robert. On Wed, Jul 2, 2008 at 8:19 AM, Adrian Egli OpenSceneGraph (3D) [EMAIL

Re: [osg-users] getColorIndices usage

2008-07-02 Thread Robert Osfield
Hi Thomas, I can only guess the tutorial your are copying has rather awkward usage of the OSG, in normal OSG usage you would never reference the TemplateIndexArray template directly, rather just use the typedef UIntArray. As for color indices, please don't use them unless you really really need

[osg-users] Dramatic increase in event traversal time during mouse movement

2008-07-02 Thread Michael Bach Jensen
Hello, group! I was looking at the nice statshandler graphics in osgViewer.exe, and noticed a dramatic increase in the time spent in the event traversal stage when the mouse was moved (goes from 0.02ms to around 8ms). Strangely enough, rotating the view by dragging with the mouse, almost does not

Re: [osg-users] Dramatic increase in event traversal time during mouse movement

2008-07-02 Thread MichaelBach
This only happens in SingleThreaded mode, btw. Switching to any of the multi-threaded modes fixes the problem. I am the victim of the multithreaded, nvidia, multi-monitor bug, so I have to start the viewer with --SingleThreaded... I am on OSG 2.4, btw, and running in release mode. /Michael On

[osg-users] Quicktime osgplugin compile error with eclipse + mingw

2008-07-02 Thread Andrea Martini
Hi guys, i have some problem when i try to compile quicktime osg plugin and openscenegraph 2.2.0. I'm going to compile openscenegraph 2.2.0 with minGW 3.14 and Eclipse 3.3.2 using CMake 2.6.0. I have downloaded quicktime SDK (version 7.1) and i have specified include and lib variables in CMAKE gui

Re: [osg-users] Crash with osgdistortion on non-FBO system

2008-07-02 Thread Paul Melis
Hi Robert, Robert Osfield wrote: osgdistortion isn't failing on my Linux/NVidia box, but... it does have FBO support, so perhaps this is the difference. The call to isMultisample does suggest that the code has detected lack of FBO support properly. I've reviewed the code and it looks like the

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Adrian Egli OpenSceneGraph (3D)
Ok, i should check out an elder version of OSG first adrian 2008/7/2 Robert Osfield [EMAIL PROTECTED]: Hi Adrian, Did these examples previously work for you? If so which versions of the OSG? Could you run these examples in a debugger and break them once they hang to find out where they

Re: [osg-users] getColorIndices usage

2008-07-02 Thread Tomas Hnilica
Hi Robert, many thanks for explanation. So, the best is to use just colorArray and push the same color for each primitive, OK. ColorIndices (what semmed to me to be the thing I need) are used in this tutorial: http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/Textures Tomas

Re: [osg-users] getColorIndices usage

2008-07-02 Thread Robert Osfield
Hi Thomas, On Wed, Jul 2, 2008 at 9:51 AM, Tomas Hnilica [EMAIL PROTECTED] wrote: many thanks for explanation. So, the best is to use just colorArray and push the same color for each primitive, OK. ColorIndices (what semmed to me to be the thing I need) are used in this tutorial:

Re: [osg-users] error in tutorial Loading Models from Files...

2008-07-02 Thread 浣曚紵
you need to add header files #include osgViewer/Viewer #include osgGA/TrackballManipulator 在2008-07-02 09:04:03,Zamo Cédrik [EMAIL PROTECTED] 写道: Hi, in tutorial Loading Models from Files and Positioning Them in a Scene there is : osgViewer::Viewer viewer;

[osg-users] BumpMapping osgFX problem

2008-07-02 Thread Hugo Gomes
Hello, im having problems with the BumpMapping osgFX, somehow it just seems it doesn't light the model. Model is only responding to ambient light. Is there any quirck im forgetting of doing ? The osgfxbrowser example works fine, so its not a hardware problem... Here is the code for the light

[osg-users] Height Above Terrain for PagedLOD node converted from Proxy node

2008-07-02 Thread Kiff Loh
Hi, I've just converted some OpenFlight files to Paged ive by replacing the Proxy nodes to PagedLOD nodes in the master flight, thanks to Brian Hill. Can anyone advise me on how do I do a terrain height query with this new pagedLOD database? Kiff

[osg-users] 144 errors in gl.h

2008-07-02 Thread Zamo Cédrik
Hi, I tried ths tutorial from : http://osghelp.com/readarticle.php?article_id=6 everythings is ok, but now I try to create my own class to manage scene ressources and visual studio dislike this. It seems that I've not linked everithings correctly. here is my main.cpp :

[osg-users] getViewMatrixAsLookAt

2008-07-02 Thread Kim C Bale
Hi all, Just a quick one for you.. when I use the following code: osg::Vec3 eye, centre, up; float dist = 0.f; viewer.getCamera()-getViewMatrixAsLookAt( eye, centre, up, dist ); I seem to get the same value for both eye and centre. Is that supposed to happen? If so how can I get

Re: [osg-users] getViewMatrixAsLookAt

2008-07-02 Thread Kim C Bale
Ha sorry my mistake.. I though dist was an output parameter. Must think before I speak/post! Kim. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kim C Bale Sent: 02 July 2008 11:16 To: OpenSceneGraph Users Subject: [osg-users] getViewMatrixAsLookAt Hi all, Just

[osg-users] 144 errors in gl.h (resend with clean text)

2008-07-02 Thread Zamo Cédrik
Hi,   I tried this tutorial :   http://osghelp.com/readarticle.php?article_id=6   everythings is ok, but now I try to create my own class to manage scene ressources and visual studio dislike this. It seems that I've not linked everythings correctly.   here is my MAIN.CPP:

Re: [osg-users] 144 errors in gl.h (resend with clean text)

2008-07-02 Thread Vincent Bourdier
Hi, I don't know for the compilation errors, but new osg::Camera;// execute main loop will not do anything... try viewer.run() ... Vincent. Le 2 juillet 2008 12:25, Zamo Cédrik [EMAIL PROTECTED] a écrit : Hi, I tried this tutorial : http://osghelp.com/readarticle.php?article_id=6

Re: [osg-users] Height Above Terrain for PagedLOD node converted from Proxy node

2008-07-02 Thread Robert Osfield
2008/7/2 Kiff Loh [EMAIL PROTECTED]: Hi, I've just converted some OpenFlight files to Paged ive by replacing the Proxy nodes to PagedLOD nodes in the master flight, thanks to Brian Hill. Can anyone advise me on how do I do a terrain height query with this new pagedLOD database?

Re: [osg-users] Quicktime osgplugin compile error with eclipse + mingw

2008-07-02 Thread Philip Lowman
On Wed, Jul 2, 2008 at 4:23 AM, Andrea Martini [EMAIL PROTECTED] wrote: Hi guys, i have some problem when i try to compile quicktime osg plugin and openscenegraph 2.2.0. I'm going to compile openscenegraph 2.2.0 with minGW 3.14 and Eclipse 3.3.2 using CMake 2.6.0. I have downloaded

Re: [osg-users] 144 errors in gl.h (resend with clean text)

2008-07-02 Thread Sebastian Messerschmidt
As far as I remember I had this error, too. It was somehow related to the windows.h. Try to include it later. hth Sebastian Hi, I don't know for the compilation errors, but new osg::Camera;// execute main loop will not do anything... try viewer.run() ... Vincent. Le 2 juillet 2008 12:25,

Re: [osg-users] Performance hit caused by porting from VS 7.1 to VS 9

2008-07-02 Thread Peter Wraae Marino
The express editions does full optimizations,.. same compiler. The express version just doesn't have features for web, MFC and stuff like that. regards, Peter On Wed, Jul 2, 2008 at 9:33 AM, Robert Osfield [EMAIL PROTECTED] wrote: Hi Rick, Do the express editions do full optimizations? I

Re: [osg-users] Problems with loading model in OSG 2.2

2008-07-02 Thread Ricky
I still can't solve this problem: Error: [screen #0] ChooseMatchingPixelFormat() - Unable to choose the requested pixel format I just loaded a simple model but the program run really slowly (in debug mode), it's better in release mode. I used osg1.2 and it run so fast, even in debug mode. Please

[osg-users] Some yes/no questions about VBOs

2008-07-02 Thread David Spilling
Dear All, I have a few VBO related questions; a few quick yes/no answers would be much appreciated to stop me going down dead ends... I attach a vertex array, texcoord array and normal array to a Drawable, which is using VBOs. From the code, I can see that calling dirty() on any of the arrays

Re: [osg-users] mouse/viewport issues with CompositeViewer

2008-07-02 Thread Jean-Sébastien Guay
Hi Bob, I am wondering about the status of this bug/fix (below) that I originally saw discussed back in late Feb. by Paul M., Jean-Sebastien and Robert, and again in late May, with no firm resolution. I am using OSG 2.4 and appear to be experiencing this same problem using CompositeViewer

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Jean-Sébastien Guay
Hi Adrian, osgshaders.exe osgthirdpersonview.exe hangs on exit. I can't reproduce that hang. Any chance you could give a stack trace? J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/

Re: [osg-users] Performance hit caused by porting from VS 7.1 to VS 9

2008-07-02 Thread Jean-Sébastien Guay
Hi Robert, Do the express editions do full optimizations? I recall previously MS used to cap the optimization on the give away versions of VS. Nope, since 2005 express (8.0 express) it's the full optimizing compiler that's included. Rick said he converted the projects for his app from

Re: [osg-users] Dramatic increase in event traversal time during mouse movement

2008-07-02 Thread Jean-Sébastien Guay
Hello Michael, I was looking at the nice statshandler graphics in osgViewer.exe, and noticed a dramatic increase in the time spent in the event traversal stage when the mouse was moved (goes from 0.02ms to around 8ms). I've seen that when running in debug version... In release the increase

Re: [osg-users] Dramatic increase in event traversal time during mouse movement

2008-07-02 Thread Jean-Sébastien Guay
Hi Michael, I've seen that when running in debug version... In release the increase is negligible. Perhaps you were running in debug? Sorry, I saw your follow-up after hitting send. I don't know what could be up. On my machine it jumps to ~2.5ms but very very shortly, so it's not

Re: [osg-users] 144 errors in gl.h (resend with clean text)

2008-07-02 Thread Jean-Sébastien Guay
Bonjour Cédrik, everythings is ok, but now I try to create my own class to manage scene ressources and visual studio dislike this. It seems that I've not linked everythings correctly. You need to add WIN32 to the defines in your project. In Visual Studio, right-click on your project, go to

Re: [osg-users] Problems with loading model in OSG 2.2

2008-07-02 Thread Robert Osfield
Hi Ricky, I am not a windows developer, I can't help you with windows specific problems. Robert On Wed, Jul 2, 2008 at 1:29 PM, Ricky [EMAIL PROTECTED] wrote: I still can't solve this problem: Error: [screen #0] ChooseMatchingPixelFormat() - Unable to choose the requested pixel format I

Re: [osg-users] Some yes/no questions about VBOs

2008-07-02 Thread Robert Osfield
On Wed, Jul 2, 2008 at 1:43 PM, David Spilling [EMAIL PROTECTED] wrote: 1) I can't quite understand all of the BufferObject code, but just to check, it looks like all three arrays are dumped into one large contiguous buffer (i.e. one single bufferID). Is that correct? If(1) is true, and it's

Re: [osg-users] Problems with loading model in OSG 2.2

2008-07-02 Thread Jean-Sébastien Guay
Hello Ricky, I still can't solve this problem: Error: [screen #0] ChooseMatchingPixelFormat() - Unable to choose the requested pixel format Your message is missing some info we need in order to help you, and there are some things you could do to try and troubleshoot yourself. What is your

Re: [osg-users] Problems with loading model in OSG 2.2

2008-07-02 Thread Peter Wraae Marino
Hi Ricky, it sounds like you are using software rendering and not hardware. Why your system defaults to software I have no clue. If your project is small and you don't mind sharing.. you can zip and send it to me at [EMAIL PROTECTED] and I'll have a look at it on my machine. Peter On Wed, Jul

Re: [osg-users] Some yes/no questions about VBOs

2008-07-02 Thread David Spilling
Robert, 2) Am I right in thinking that limiting the upload to one of the arrays would involve extending BufferObject to use glBufferSubData, as it isn't currently supported? I should already work in 2.4 onwards. Fabulous! I'm on 2.2 at the moment; I'll upgrade immediately! Thanks for

Re: [osg-users] Some yes/no questions about VBOs

2008-07-02 Thread Robert Osfield
On Wed, Jul 2, 2008 at 2:28 PM, David Spilling [EMAIL PROTECTED] wrote: I should already work in 2.4 onwards. Fabulous! I'm on 2.2 at the moment; I'll upgrade immediately! Thanks for the help, Just checking svn log, it looks like some of the Array changes happend after 2.4, so it would be

[osg-users] VPB and how it generates terrain

2008-07-02 Thread Jean-Sébastien Guay
Hello Robert, We currently have a student doing a masters project at our company, and his job will be to improve the terrain algorithms in the Vortex toolkit (both for physical simulation and graphical representation). One aspect is generating terrain from a height field, which is what VPB

Re: [osg-users] Performance hit caused by porting from VS 7.1 to VS 9

2008-07-02 Thread Rick Pingry
I had thought about maybe express being non-optimal as well, so I had some friends do the compile on their machines with a full version of VS 9, with the same results. The only thing remaining I can think of is making new projects in VS 9 as suggested. Thanks, -- Rick On Wed, Jul 2, 2008 at

Re: [osg-users] VPB and how it generates terrain

2008-07-02 Thread Robert Osfield
On Wed, Jul 2, 2008 at 3:45 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: Hehe, I know, I wasn't expecting an explanation, maybe just some links to articles you used as inspiration... We don't need to reproduce VPB (if that were the case we'd just use it). We just want to have an idea of the

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Gerrick Bivins
Hi All, I thought I'd try to build VPB and I ran into this error (on MacOSX 10.5.3 with OSG svn): CMake Warning (dev) at CMakeModules/VpbMacroUtils.cmake:215 (INSTALL): Policy CMP0006 is not set: Installing MACOSX_BUNDLE targets requires a BUNDLE DESTINATION. Run cmake --help-policy CMP0006

Re: [osg-users] XPath in osg

2008-07-02 Thread David Johansson
Serge, Thanks for the tip. I'll give that a shot. David On Tue, Jul 1, 2008 at 6:40 PM, Serge Lages [EMAIL PROTECTED] wrote: Hi David, Instead of including it into the Core OSG, a possible addition should be a XPath visitor class (deriving from NodeVisitor) into osgUtil, which takes the

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Robert Osfield
Hi Gerrick, I have never built VPB under OSX, and have to defer to developers that work under OSX for fixes/direction on that platforms. What I have done is to try and mirror some of the changes that have being going into to core OSG to help with the OSX build side, but I don't have any first

Re: [osg-users] ViewerQT destruction

2008-07-02 Thread Robert Osfield
Hi Virginia, There is not much I can do without seeing the problem first hand. Is it possible to recreate it by modifying the existing osgviewerQT example? If so, could do this to effectively create a unit test for this particular usage case. Another possible route with solving this type of

Re: [osg-users] VPB/osgdem and transparent textures

2008-07-02 Thread Mike Lewis
Hi Robert, Thank you for helping me. I actually just started using VPB / osgdem so I can't say I'm familiar with all the concepts yet. I have only been using osgviewer to view the .ive or .osg models that osgdem generates. I was terribly wrong to say the alpha channel was being ignored; If I go

Re: [osg-users] XPath in osg

2008-07-02 Thread Cedric Pinson
I would lovee a visitor like that very much ! :) David Johansson wrote: Serge, Thanks for the tip. I'll give that a shot. David On Tue, Jul 1, 2008 at 6:40 PM, Serge Lages [EMAIL PROTECTED] wrote: Hi David, Instead of including it into the Core OSG, a possible addition should be a

[osg-users] Anistropy Question

2008-07-02 Thread paul1492
How do I set the Anistropy for all textures which are read in (using an OpenFlight file) to a particular value?? I prefer to do this without using a NodeVisitor and I do not want to effect textures I manual create and attach to the Scene Graph. In addition, for a TerraPage file, I assume I can

Re: [osg-users] VPB/osgdem and transparent textures

2008-07-02 Thread Robert Osfield
Hi Mike, It's a bit unusual to want to blend terrain, kinda suggests that the pipeline is being used inappropriately. What exactly are you after by the alpha blending? Robert. On Wed, Jul 2, 2008 at 5:59 PM, Mike Lewis [EMAIL PROTECTED] wrote: Hi Robert, Thank you for helping me. I actually

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Eric Sokolowsky
On Wed, Jul 2, 2008 at 11:42 AM, Robert Osfield [EMAIL PROTECTED] wrote: Hi Gerrick, I have never built VPB under OSX, and have to defer to developers that work under OSX for fixes/direction on that platforms. What I have done is to try and mirror some of the changes that have being going

Re: [osg-users] ViewerQT destruction

2008-07-02 Thread Virginia Holmstrom
Robert- I have modified AdapterWidget.cpp from the osgviewerQt example. Use with Osg 2.4, Qt 3.3.3. It is obviously much simplified from what I have but exhibits a similar problem. What I changed: 1. Created 3 ViewerQts instead of just 1 2. Added a destructor to ViewerQt 3. Added the

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Gerrick Bivins
Ok. I¹ll try the bundled flag again once I see the change is submitted. Thanks. Gerrick On 7/2/08 12:58 PM, Eric Sokolowsky [EMAIL PROTECTED] wrote: On Wed, Jul 2, 2008 at 11:42 AM, Robert Osfield [EMAIL PROTECTED] wrote: Hi Gerrick, I have never built VPB under OSX, and have to defer

Re: [osg-users] Testing of OSG and VPB SVN in prep for 2.5.3devreleasese

2008-07-02 Thread Eric Sokolowsky
On Wed, Jul 2, 2008 at 2:02 PM, Gerrick Bivins [EMAIL PROTECTED] wrote: Ok. I'll try the bundled flag again once I see the change is submitted. Thanks. Gerrick I didn't (nor do I plan to) submit this change for VPB. You might want to try it yourself and submit the change.

Re: [osg-users] VPB/osgdem and transparent textures

2008-07-02 Thread Mike Lewis
Hi Robert, I admit one of the main reason I'm after blending / transparency in my terrain is that I'm using source imagery that is reprojected from geographic to UTM coordinates. The reprojection results in a slight warping of the texture, leaving irregular NODATA bands around the sides. When

Re: [osg-users] Problems with loading model in OSG 2.2

2008-07-02 Thread Ricky
Thanks for your supports! I'm using the OSG binaries downloaded from http://www.mew.cx/osg/. I run this program on Windows XP SP2, VS2005 SP1, video card: ATI Mobility Radeon 2400XT 256MB, RAM DDR2 1GB. When I run osgviewer in command line: osgviewer --window 32 32 512 512 cow.osg, I had the same

Re: [osg-users] Problems with loading model in OSG 2.2

2008-07-02 Thread Peter Wraae Marino
Hi Ricky, ok.. i think we should have asked this first. have you updated your graphic-card driver? Peter On Wed, Jul 2, 2008 at 8:37 PM, Ricky [EMAIL PROTECTED] wrote: Thanks for your supports! I'm using the OSG binaries downloaded from http://www.mew.cx/osg/. I run this program on Windows

Re: [osg-users] Bump mapping question

2008-07-02 Thread Judie
in the link: http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a01058.html#_details it says: Note that both diffuse and normal map textures must have corresponding UV maps defined in Geometry objects Is there a way to generate the UV map programmatically? Can I just use

Re: [osg-users] OSG thread profiling results are in!!

2008-07-02 Thread rpingry
Hi Robert, I got the stats handler working on our scene and displaying. I am not sure I understand what the different numbers mean and how I might work with them. I can see the optimization effort is a big deal. I know it is beyond the scope of this group. Are there any resources out there to

[osg-users] new Optimizer improvement rocks

2008-07-02 Thread Terry Welsh
This improvement to sharing duplicate state in Optimizer has boosted my app's performance 10-20% on my various computers at work. Nice job, and thanks. I'm running a pretty complex .flt city model with lots of textures for all the buildings and cars. It also loads lots of external models. I

Re: [osg-users] VPB and how it generates terrain

2008-07-02 Thread Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC
There's an article entitled On-the-sphere block-based 3D terrain rendering using a wavelet-encoded terrain database for SVS by Greg Baxes and Tim Linger of TerraMetrics Inc. The article gives a high level view of their algorithm which I believe is the one or similar to the one used in Earth

[osg-users] Converting model to screen coordinates

2008-07-02 Thread Helbig, Yuen
Hello, I'm trying to convert from model coordinates to screen coordinates with the following code: // Compute the model to screen transformation matrix osgUtil::SceneView* sv = m_sHandler-getSceneView(); osg::Matrix modelView = sv-getViewMatrix(); osg::Matrix projection =

Re: [osg-users] Bump mapping question

2008-07-02 Thread Jon Newell
Hi Judie A rarer than hens teeth content question :) We just use a standard 24 bit normal maps, for which we use a few different tools, the least sophisticated or useful of which is the Nvidia tool, works but is ugly and output is average. Xnormal www.*xnormal*.net and Crazybump

[osg-users] How to control RTT camera sometimes work and sometimes don't work

2008-07-02 Thread guilianzhang
Hi, I want to let the RTT camera render the scene only when the scene changed, are there any callback mechanism that I can control the RTT camera when it has to update the texture and when it should stop working? If I make the RTT camera stop working, will the textures it renders be

Re: [osg-users] Performance hit caused by porting from VS 7.1 to VS9

2008-07-02 Thread James Killian
Thanks for this info... I checked the projects by hand and sure enough all the optimization settings were incorrect. I simply fixed them and viola back in business!! James Killian - Original Message - From: Paul Martz To: 'OpenSceneGraph Users' Sent: Tuesday, July 01, 2008