Re: [osg-users] osgVTK
Hi, ? Have a look at the osg-users archive: http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/2008-November/018541.html Download the attachment and rename it to osgVTK.zip. I'm not sure if it can work well with the latest OSG version. Wang Rui 在 2010年7月10日 下午11:33，FlySky 写道： > > Hello, > I'm recently doing some work about VTK. I know there is a project called > osgVTK,maybe long time ago. I would like to rewrite or update this project. > Do you have the project's source code? Can you send this project to me? > > Thank you! > Look forward to your reply! > Good luck! > > > > ___ > 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] osgVTK
Hello, I'm recently doing some work about VTK. I know there is a project called osgVTK,maybe long time ago. I would like to rewrite or update this project. Do you have the project's source code? Can you send this project to me? Thank you! Look forward to your reply! Good luck! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] synchronizing multi rendering?
Hi, I have multi display set up in a way one graphics card to each monitor. I created one context to each screen and framing one texture to each and rendering. The rendering I do in a loop(1..NSCREEN). Display is happening perfectly as stream of video in parallel. After some time, the displays are not getting synchronized with each other. Means that one is going bit ahead of another one. Even though I set my composite viewer with single threaded, I dnt understand why this happens so? I m not sure what needs to be done. Akilan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29893#29893 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] NewBie Question Rotation question
"Rakesh Parmar" writes:
> Hi,
>
> i am trying to do animation about own axis of object
> itself but i am not getting correctly.
>
>
> Code:
>
>
> virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
> {
> if (nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
> {
> osg::MatrixTransform* MT =
> dynamic_cast(node);
> if (MT) {
> osg::Vec3 result(0,1,0);
> osg::Matrix Rot;
> Rot.makeRotate(1,result);
> MT->setMatrix(Rot*MT->getMatrix());
> }
> }
> ///traverse(node,nv);
> }
> ]
Hi Rakesh,
at a glance I can't see anything wrong. What is happening when you run
your program that is different that you were expecting? Can you test
that the update callback is in fact being visited printing a message or
with the debugger?
--
Alberto
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Re: [osg-users] Problem: All my OSG objetct are flipped
Hi Mannuel, I don't know how you can expect others to help you fix the problem in your app as you don't provide any information about how you've set up scene graph. Do you require us to guess?? Please be more specific. Robert. On Sat, Jul 10, 2010 at 12:13 PM, Manuel Garea wrote: > Hi, I have a very big problem with my OSG scene. all the objects I draw are > flipped, it's like OSG was a mirror. In the image below you can see the > textures I used and the drawed objetcs. Everything is flipped!!! > > Do someone know what is the problem??? Is it a problem with my camera??? > > Thank you very much!!! > > Cheers, > Manuel > > -- > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=29890#29890 > > > > > ___ > 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] osgVolume volume rendering ?
Hi Manu, It sounds like you aren't using osgVolume correctly. First up I would recommend using 2.9.2 or svn/trunk as this will contain the latests update to osgVolume. Second up you talk about DCMTK build problems, you'll need to be more precise that this for others to help. In general I would say the DCMTK under Windows can be a bit tricky, have a look through the archives to see how others tackled it. I'm under Linux so don't see problems. Using dicom files is currently the easiest route to loading a full 3D volume, but building the 3D osg::Image yourself it's difficult. With the osgvolume example you'll just have to run with --images filenames to get it to read a series of 2D images and pack them into an 3D osg::Image for rendering. Robert. On Fri, Jul 9, 2010 at 10:47 AM, Emmanuel Roche wrote: > Hi everyone, > > I'm just starting to play with the osgVolume sample and I have a very > beginner question about it: > > -> Can you actually have any kind of volumetric rendering with this ??? > > I perform many tests with various arguments, but each time, all I get is a > simple 2D image sequence of all the provided 2D images: so it's basically > playinig just like a movie... Why would we have complex Raytracing shader > techniques just to render an image sequence ? I must be missing something > here. > > > Also, note that I actually managed to get a 3D rendering specifying zSize, > ySize and xSize, but again the 3D result is merly the projection of a > single 2D image (an the image is dynamically changing...) I know the > osgVolume still needs more development, but is that really all I can expect > from it for the moment ?? > > Also, I could not use DICOM images directly: I got errors from the dcmtk > library, so I first used image magick to convert my dcm images to png > images, could it be I lost "usefull 3D volumetric rendering info" with that > step ? > > And last but not least, those tests were performed on Windows, with OSG > 2.9.6. Any known limitation due to this ? > > > In fact, if anyone as any screenshot I would be interested ! :-) > > Cheers, > Manu. > > > > ___ > 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] Dem file with OSG
Hi Elmar, On Fri, Jul 9, 2010 at 6:53 AM, Elmar Alizade wrote: > I want to laod DEM file as terrain to my program. How can I do it? Generally > does OSG support DEM files? There are a range of ways, from loading the DEM using the GDAL plugin (you'll need to GDAL installed along with dev headers) or then set up the osgTerrain::TerrainTile yourself, or use a tool like VirtualPLanetBuilder to build a database for you, through to using the osgEarth 3rd party NodeKit for loading your DEM's. Which of this routes is appropriate for you I cannot say as you don't provide enough information about what scale of data and what you are trying to achieve. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] LOD Culling issue
Hi Vincent, If a PagedLOD is not being visited then it'll likely be because it's being view frustum culled or culled by an LOD above it. Not setting up the bounding volume of the PagedLOD correctly would be a likely candidate for this happening inappropriately. Robert. On Fri, Jul 9, 2010 at 1:50 AM, Vincent Bourdier wrote: > Hi all, > > Still having issues with PagedLOD... >_< > > My scene is composed by PagedLOD only at start-up. All is good, the files > are loaded and the geometry are displayed. > > But when, before launching the render loop, I add a little geometry (not a > pagedLOD, just a simple little sphere) in my scene, PagedLOD do not Load. > The database pager request List is empty. > I need to move the camera very close to a LOD (knowing it position without > seeing it) to launch the PagedLOD loading. > > It seems that the PagedLOD nodes are not visited byt the CullVisitor, so > they can't request the load of their children. > > Any idea would be very appreciated because after 8h on this issue, I still > have no idea of the problem... > > Thanks for your help. > > Regards, > Vincent. > ___ > 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] floating point exeption in VPB...
Hi Shayne, I develop under 64bit system and haven't encountered any floating point exceptions issues with 64bit build of VPB. Could you please run osgdem in a debugger and see what happens. Could you also update to svn/trunk for OSG and VPB to see if the problem persists. Robert. On Thu, Jul 8, 2010 at 11:01 PM, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC wrote: > All, > > > > I’m using VPB 0.9.10 along with OSG 2.8.2 on a system that is using 64-bit > Linux (Fadora core 10) i386. Both packages were built from source. > > > > No matter what database I try to build, I get a floating point exception > when running osgdem. I know the DTED and imagery are good since I’ve built > VPB databases with this content on a windows 32-bit system. > > > > Here is a sample command that fails: osgdem –TERRAIN –geocentric –PagedLOD > –whole-globe –t wholeearthtexture.tif –l 10 –o output.ive > > > > My question is, has anyone else seen problems with VPB in a similar > environment. Are there some 64-bit issues going on here? I’m at a loss as to > why I’m getting this floating point exception. If I use any other content > (i.e. dted or imagery), I get the same results. > > > > Any help or input would be most appreciated… > > -Shayne > > ___ > 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] ABSOLUTE_RF problem
HI Guillaume, 2010/7/8 Guillaume Tazé : > Hello, i'm trying to understand how ABSOLUTE_RF works, and i've made a small > example. The problem is that it should works but it actually doesn't... ABSOLTE_RF means that the when the cull traversal encounters a Transform node it ignores the inherited modelview matrix so that the local transform matrix on the Transform node becomes the new modelview matrix. This means that the Transform nodes subgraph is placed in new coordinate frame rather than that of it's parents. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] NewBie Question Rotation question
Hi,
i am trying to do animation about own axis of object
itself but i am not getting correctly.
Code:
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
if (nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
{
osg::MatrixTransform* MT =
dynamic_cast(node);
if (MT) {
osg::Vec3 result(0,1,0);
osg::Matrix Rot;
Rot.makeRotate(1,result);
MT->setMatrix(Rot*MT->getMatrix());
}
}
///traverse(node,nv);
}
]
Please help me i am just learning OSG
Thank you!
Cheers,
Rakesh
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=29882#29882
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