Re: [osg-users] Caching images
Hi, Doug, Thanks very much for the tips. I will give it a try. After I sent my last email, I also noticed that the option for caching was handled at the registry level, before it got down to the functions in the reader plugins that actually read the image files. Best Regards, Yefei -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Doug McCorkle Sent: Wednesday, June 27, 2012 9:35 PM To: OpenSceneGraph Users Subject: Re: [osg-users] Caching images Hi Yefei, I do this in my code: osgDB::ReaderWriter::Options* opt = new osgDB::ReaderWriter::Options; opt-setObjectCacheHint( osgDB::ReaderWriter::Options::CACHE_IMAGES ); osgDB::Registry::instance()-setOptions( opt ); which seems to solve the problem you describe. I am not sure why your method would not work. Doug On Jun 27, 2012, at 7:03 PM, He, Yefei wrote: Hi, Robert, I’m working on an application that loads multiple ive files and the memory usage gets quite high. A lot of these ive files share textures. It appears that the image files for these textures gets loaded multiple times. For example, if I just run “osgviewer cow.osg cow.osg”, the reflect.rgb file gets loaded twice. Is there any consideration to cache the images to reduce memory usage? There is a ReaderWriter option CACHE_IMAGES. However, I don’t think it is actually being recognized by any of the image reader plugins. At least not by the jpeg or rgb plugins, I believe. Is the mechanism in place to actually cache images? Any examples I can refer to? Thanks, Yefei ___ 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 mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Author permissions on openscenegraph.com
Hi Bryan, Thanks for your help, you are very wellcome :). The author guidelines is in its first stage, I'll try to finish it as soon as possible and let the community know about it. So if you have any doubt don't hesitate to ask. Cheers. 2012/6/27 Thrall, Bryan bryan.thr...@flightsafety.com Robert Osfield wrote on 2012-06-27: I have just updated your permissions to publisher, editor and author so you'll be able to write a page and then publish it directly without requiring publishes to review your work. Thanks! On 27 June 2012 18:01, Thrall, Bryan bryan.thr...@flightsafety.com wrote: I'd like to help migrate the OpenSceneGraph.org website over to the new OpenSceneGraph.com, but I'm having a bit of trouble: I have a login at OpenSceneGraph.com but I think I don't have author permissions because I don't see a button or link anywhere allowing me to submit new pages or edit existing ones. The Migration Tasks and Author Guidelines pages mention contacting the website admins about getting author permissions, but I don't see anywhere that actually lists who those people are or how to contact them. Now, from the mailing list, I know Jordi Torres is the person to talk to :) So, I have two questions: Jordi, would you give me the permissions I need to help with the migration? Can we add a page to OpenSceneGraph.com describing who the website admins are and how to contact them? -- Bryan Thrall Principal Software Engineer FlightSafety International bryan.thr...@flightsafety.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Jordi Torres Fabra gvSIG 3D blog http://gvsig3d.blogspot.com Instituto de Automática e Informática Industrial http://www.ai2.upv.es ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [Off Topic] General OpenGL / DirectX/3D troubleshooting strategy for virtual machines
Hi, OSG is OpenGL only so it won't work with DirectX particularly on an VMware machine unless it support OpenGL, virtual box DOES support OpenGL that allows you to bang the hardware direct if you want to change! I don't believe VMware supports direct OpenGL but may support DirectX, but of course OpenGL wont work Try Virtual box?Unless I am missing the point? Kind Regards Martin From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of John Richardson Sent: 28 June 2012 00:43 To: 'OpenSceneGraph Users' Subject: [osg-users] [Off Topic] General OpenGL / DirectX/3D troubleshooting strategy for virtual machines Hello, Apologies for the general off topic question but this is the only Linux 3-D list I lurk on. Configuration is a Windows XP box with 3 virtual Machines [1 Windows XP VM, 2 Linux VM's]. Google Earth works on the VM using OpenGL but I need it to work using DirectX/3D. DirectX is installed but the VM reports that it cannot be found. VMware Vsphere is most likely the VM generator. The goal is for the VM to get access to the graphics card on the bare metal. Any thoughts? Troubleshooting strategies? John F. Richardson ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Ubuntu insensitive to middle-click, extending SphericalManipulator as workaround
Matthew Grimes writes: Hi Robert, thanks for the reply. I am using the OSG 3.01 that is part of Ubuntu 12.04's repositories (libopenscenegraph-dev 3.0.1-2). I did make-clean and rebuild my project after upgrading to Ubuntu 12.04. Hi Matthew, in Debian, with libopenscenegraph-dev 3.0.1-3+b2, which is where Ubuntu's OSG is based, I have no problems with osgviewer and the middle-click event. However I will try your manipulator in order to see if I can reproduce the problem. -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Caching images
Hi Yefei, On 28 June 2012 07:12, He, Yefei yefei...@uiowa.edu wrote: Thanks very much for the tips. I will give it a try. After I sent my last email, I also noticed that the option for caching was handled at the registry level, before it got down to the functions in the reader plugins that actually read the image files. Doug's pointed you in the right direction already so I don't need to add much. All I would say extra is that .ive files by default store the image within the file itself so there isn't any external read call for the images so the Registry cache of loading images won't be looked at, so won't automatically share images in the cache. Images files externally referenced will use the cache if it's enabled. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [Off Topic] General OpenGL / DirectX/3D troubleshooting strategy for virtual machines
Hi, you could also use Xen as Virt technology. There you can pass through hardware devices and also graphics adapter for exclusive usage in a VM. But If you want to virtualize Windows you need a VT/Pacifica enabled CPU, because Xen is a paravirt solution. Cheers, Torben -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48583#48583 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Manipulating a loaded 3D model
robertosfield wrote: Create a static cylindrical geometry and decorate this subgrpah with a transform node that you update dynamically to align the cylinder with the points your want. Hi Roberto, Thanks for the reply. I want to load a .OSG model which is a cylinder, but not a osg::Cylinder. I wonder if it is possible. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48586#48586 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Manipulating a loaded 3D model
Hi Praveena, On 28 June 2012 10:42, Praveena Sara pravee...@gmail.com wrote: Thanks for the reply. I want to load a .OSG model which is a cylinder, but not a osg::Cylinder. I wonder if it is possible. It makes no difference what the subgraph below the transform node is, it could be an osg::ShadeDrawable+osg::Cylinder or a whole city model it makes no difference. The only thing you need to do is compute the transform to move the two end up points of interest to where you want to put them. There is plenty of articles on the web about matrix maths so go have fun learning ;-) Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Creating flare or shining star with osg
Do not really tell me that nobody has needed such a thing in its entire life in with its graphics projects... :( Tolga -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48591#48591 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Creating flare or shining star with osg
Tolga Yilmaz writes: Do not really tell me that nobody has needed such a thing in its entire life in with its graphics projects... :( Hi Tolga, what about this proposal? http://osdir.com/ml/OpenSceneGraph-Users/2012-01/msg00088.html -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to create osg::Texture2D from osg::Vec3Array...?
Hi, simplest technique is creating osg::Image, then assigning it to texture like this: Code: osg::Image* image = new osg::Image; image-allocateImage(16, 1, 1, GL_RGBA, GL_FLOAT); image-setInternalTextureFormat(GL_RGBA); osg::Vec4* dataPtr = reinterpret_castosg::Vec4*(image-data()); memcpy(); // copy your array Vec4Array osg::Texture2D* texture = new osg::Texture2D; texture-setImage(image); Cheers, Filip -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48593#48593 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Build V8 for osgEarth
I am using osgEarth2.2 now.I get to know osgEarth can use V8 library which support for embed javascript into osgEarth program. I've downloaded V8 and it's third-party package which includes python. When I use python26 to generate sln project by the command python26 build/gyp_V8,I got the errors like this: Traceback (most recent call last): File E:\3D\osgearth\V8\build\gyp_v8, line 50, in module import gyp ImportError: No module named gyp Waiting for ur helps. Thank you very much!___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Build V8 for osgEarth
caijun, You don't need to do that; just uses scons: http://code.google.com/p/v8/wiki/BuildingOnWindows Glenn Waldron / @glennwaldron On Thu, Jun 28, 2012 at 9:16 AM, caijun caijun2002...@126.com wrote: I am using osgEarth2.2 now.I get to know osgEarth can use V8 library which support for embed javascript into osgEarth program. I've downloaded V8 and it's third-party package which includes python. When I use python26 to generate sln project by the command python26 build/gyp_V8,I got the errors like this: Traceback (most recent call last): File E:\3D\osgearth\V8\build\gyp_v8, line 50, in module import gyp ImportError: No module named gyp Waiting for ur helps. Thank you very much! ___ 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] [osgPlugins] Qt OpenSceneGraph 2.8.2
Hi, could anyone tell me what's the better version of Qt to use in OSG 2.8.2 Thank you! Cheers, Antonio -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48596#48596 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] If anyone knows please explain about GL_LIGHT0
YoungStone, Jeong wrote on 2012-06-27: Hi, I'm studying OSG with Beginner's Guide Book. But I did not learn about OpenGL. snip In the code, GL_LIGHT0 and GL_LIGHT1 is being used. I know there are from GL_LIGHT0 to GL_LIGHT7. In my opinion GL_LIGHT0 features seems to be different from others. Who can you explain GL_LIGHT0 is this? I'm not sure what you're asking exactly but maybe this will help: In OpenGL, there is nothing special about GL_LIGHT0. However, osgViewer::Viewer by default uses GL_LIGHT0 as a headlight. You can change this behavior by setting the OSG_DEFAULT_LIGHTING environment variable (see 'osgviewer --help-env') or by calling setLightingMode() on your osgViewer::Viewer. Hope this helps! -- Bryan Thrall Principal Software Engineer FlightSafety International bryan.thr...@flightsafety.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [Off Topic] General OpenGL / DirectX/3D troubleshooting strategy for virtual machines
Martin / Torben, Thanks. I'll pass the advice on. John F. Richardson -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Torben Dannhauer Sent: Thursday, June 28, 2012 1:08 AM To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] [Off Topic] General OpenGL / DirectX/3D troubleshooting strategy for virtual machines Hi, you could also use Xen as Virt technology. There you can pass through hardware devices and also graphics adapter for exclusive usage in a VM. But If you want to virtualize Windows you need a VT/Pacifica enabled CPU, because Xen is a paravirt solution. Cheers, Torben -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=48583#48583 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org smime.p7s Description: S/MIME cryptographic signature ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Caching images
On Jun 28, 2012, at 3:06 AM, Robert Osfield wrote: Hi Yefei, On 28 June 2012 07:12, He, Yefei yefei...@uiowa.edu wrote: Thanks very much for the tips. I will give it a try. After I sent my last email, I also noticed that the option for caching was handled at the registry level, before it got down to the functions in the reader plugins that actually read the image files. Doug's pointed you in the right direction already so I don't need to add much. All I would say extra is that .ive files by default store the image within the file itself so there isn't any external read call for the images so the Registry cache of loading images won't be looked at, so won't automatically share images in the cache. Images files externally referenced will use the cache if it's enabled. ...unless you setup your ive file to load the image files externally instead of encoding the image file into the ive file. Doug ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Away for a week!
Hi All, I am am just heading off for a week, and will be back online on Monday 8th July. Have fun in my absence ;-) Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
