[osg-users] new Trackball coordinate system

Hi all, has anyone successfully changed the default coordinate system of the new (svn) osg manipulators? I just want the camera to start up in the default OpenGL coordinate frame: y-up, x-right, -z-forward. I've been trying to set a CoordinateFrameCallback on trackball. Firstly, it seems

[osg-users] Enable/Disable stereo during runtime

Hi, i want to enable and disable stereo in my application during runtime. Do i have to destroy the old graphic context and create a new one or is there an easier way? Thank you! Cheers, Andreas -- Read this topic online here:

[osg-users] Parallel draw on a multi-core, single GPU architecture

Hi all, we have a performance problem where the draw thread seems to be the bottleneck. The target hw has 8 cores and a single GPU. We already run cull and draw in parallel but parallelizing draw itself would also help. So I tried following setup: 2 windows 2 cameras (each on one window)

[osg-users] Integrating OSG with an existing OpenGL solution.

Hi all, and thanks for your support so far. We are using OpenSceneGraph for creating model views for a muscular-skeletal simulation software package, which has worked really well so far. We have had a number of inquiries if it would be possible to make this modelview available to other external

Re: [osg-users] Enable/Disable stereo during runtime

Hi Andreas, On Tue, Aug 17, 2010 at 4:54 PM, Andreas Roth andreas.r...@fastprotect.net wrote: i want to enable and disable stereo in my application during runtime. Do i have to destroy the old graphic context and create a new one or is there an easier way? It all depends on how you are doing

Re: [osg-users] Parallel draw on a multi-core, single GPU architecture

Hi Tugkan, It only ever makes sense to parallelize draw dispatch when you have multiple graphics cards and one context per graphics card. Trying to add more threads than OpenGL/graphics card can handle will just stall things and result in lower performance. If your draw dispatch is overloaded

Re: [osg-users] Integrating OSG with an existing OpenGL solution.

Hi Jasper, It is possible to integration the OSG with an existing OpenGL context, see the osgviewerSDL and osgviewerGLUT examples use of GraphicsWindowEmbedded to do this. If the 3rd party app is doing it's own OpenGL work then things get more complicated as you'll need to make sure the OpenGL

Re: [osg-users] Parallel draw on a multi-core, single GPU architecture

Hi Robert, thanks for the answer. Our scene graph is heavily optimized and there doesn't seem to be any serious optimization possibilities. Maybe a few percent improvement from here and there. We observe that, as our databases grow, the performance requirement for draw thread grows faster than

Re: [osg-users] Parallel draw on a multi-core, single GPU architecture

Hi Tugkan, On Wed, Aug 18, 2010 at 9:49 AM, Tugkan Calapoglu tug...@vires.com wrote: We observe that, as our databases grow, the performance requirement for draw thread grows faster than cull. In the long run, draw will be a serious limiting factor for us. So I wanted to see if we can take

Re: [osg-users] Parallel draw on a multi-core, single GPU architecture

Hi Robert, our databases are for driving simulation and they are usually city streets. We have been employing batching and occlusion culling with very good results so far. Extensive use of LOD's is problematic because 1- They actually reduce performance in most of the cases 2- The switching

Re: [osg-users] Enable/Disable stereo during runtime

Thanks Robert! I'm using quad buffer stereo and to enable or disable i have to create a new graphic context. At the moment i trying to recreate a graphic context using the following ops: - remove my osgViewer::View instance from my osgViewer::CompositeViewer instance - remove all osgGA event

Re: [osg-users] Parallel draw on a multi-core, single GPU architecture

Hi Tugkan, On Wed, Aug 18, 2010 at 10:39 AM, Tugkan Calapoglu tug...@vires.com wrote: Actually, draw always required more time than cull. If you look OSG examples, draw usually takes more time than cull. Now that draw reaches 16 ms border, this started to hurt us. It is typical for cull to be

[osg-users] Visualizing 3D-Points including standard deviation

Hi, I need to visualize points in 3D, whose positions are Gauss distributed. The expected values and the standard deviations for each x, y and z coordinate are given. So, how can I do that with OSG? I could draw a sphere (using osg::SphereDrawable) with a fixed radius at the center and another

Re: [osg-users] How to use osgvolume in an SDL application?

Hi, Thank you Robert for replying so quick! I appreciate it. Cheers, Boubacar from Mali, West Africa -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30876#30876 ___ osg-users mailing list

Re: [osg-users] Proximity Queries between objects

Hi, I tried the following code: Code: //BoundingSphere using computeBound() osg::BoundingSphere bh1Sphere = backhoe1Group-computeBound(); osg::BoundingSphere bh1PATSphere = backhoe1PAT-computeBound(); //BoundingSpere using computeBound(): osg::BoundingSphere bh2Sphere

Re: [osg-users] Proximity Queries between objects

Hi Sanat -- I posted to osgBullet-users with a possible fix for your osgBullet crash, but didn't see a reply from you. Did my suggestion resolve the issue you were encountering? -Paul ___ osg-users mailing list osg-users@lists.openscenegraph.org

[osg-users] Setting alpha to a group node

Hi, I'm still fairly new to OSG and finding my way around. I have a little problem that I need done very quickly, so hope someone can help. I'm trying to apply alpha to a group node so it affects all geometry under it while preserving their other material properties. I've loaded a .lwo

[osg-users] Open Scene Graph Training

Greetings! I found out through the Khronos web site that there is going to be an Open Scene Graph Corse offered in Seattle on Oct 5th-7th by Bob Kuehne. Did anyone else knew about this? ... D Glenn D Glenn (a.k.a David Glenn) - Join the Navy and See the World ...

Re: [osg-users] Open Scene Graph Training

hi david, thanks for the re-post - i *did* know about this. ;) i thought i posted a few weeks back. if it didn't make it through everyone's filters, then here it is again! two weeks remain for discounted pricing, and it'll be a good course. we've given this course for a number of years, and it's

Re: [osg-users] Setting alpha to a group node

Have you considered setting BlendColor at the parent Group node and using one of the blend function parameters that use constant color? -Paul Phil Fugue wrote: Hi, I'm still fairly new to OSG and finding my way around. I have a little problem that I need done very quickly, so hope

Re: [osg-users] Open Scene Graph Training

It was posted here two weeks ago. Search the archives for the thread osg course: oct 5-7, seattle, wa. -Paul David Glenn wrote: Greetings! I found out through the Khronos web site that there is going to be an Open Scene Graph Corse offered in Seattle on Oct 5th-7th by Bob Kuehne. Did

[osg-users] [osgPlugins] osgAnimation update and procedural animation

Hi, I am using osg in Python using the osgSWIG wrrappers. I have recently updated to the latest osg (2.9.9) and updated osgSWIG appropriately. Anyway I have now hit all the changes in osgAnimation and am trying to make my code work again. Firstly I should say that a lot of bugs seems to have

Re: [osg-users] Setting alpha to a group node

Paul Martz wrote: Have you considered setting BlendColor at the parent Group node and using one of the blend function parameters that use constant color? -Paul Thanks for your response. No I havent considered this. I dont understand how it will accomplish what I'm looking for. Can

Re: [osg-users] Setting alpha to a group node

Phil Fugue wrote: Paul Martz wrote: Have you considered setting BlendColor at the parent Group node and using one of the blend function parameters that use constant color? -Paul Thanks for your response. No I havent considered this. I dont understand how it will accomplish what I'm

[osg-users] OpengGLES build failed

Hi Robert, I'm trying to build OSG with the android ndk (android-ndk-r4-crystax). I have made some changes in the code to allow the build, but I think recent changes in Texture.cpp have broken the build against GLES/GLES2. /Users/rgaitan/Projects/OSG/osg-trunk/src/osg/Texture.cpp: In member

Re: [osg-users] osg::Array

Hi, Okay... I get indices like that: _indices = temp-asGroup()-getChild(0)-asGroup()-getChild(i)-asGeode()-getDrawable(0)-asGeometry()-getPrimitiveSet(0); //temporary; data existence is checked; i know it's bad and then indices[i] = (int*)(*_indices).getDataPointer(); //copy to 2-dimensional

[osg-users] [forum] Building a scene graph for several thousand objects

Hi all, First of all, thanks to the folks who built this library. I'm building a 3D game engine based on osg::CompositeViewer featuring rather larger worlds built using cubes. I've attached an image of what I'm trying to create. I was using ShapeDrawable for the blocks until I read I would

Re: [osg-users] Open Scene Graph Training

Paul Martz wrote: It was posted here two weeks ago. Search the archives for the thread osg course: oct 5-7, seattle, wa. -Paul ___ osg-users mailing list http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Setting alpha to a group node

Paul, That did the trick. Thanks for the help. I've programmed some OpenGl in the past, but yes, my knowledge/experience with it is patchy. I own the Programming Guide, but was not aware of the online book, so thanks for the link. I've worked with blend functions before, but never heard of

[osg-users] Displaying OSG data in MFC window

Hi everyone, I am new to both MFC and OSG. I am displaying the 3D point cloud in OSG. I want to display this osg data in the window provided by the MFC. Is there any way to do it? Please reply... ... Thank you! Cheers, Snehal -- Read this topic online here:

Re: [osg-users] OpengGLES build failed

Rafa Gaitan wrote: Hi Robert, I'm trying to build OSG with the android ndk (android-ndk-r4-crystax). I have made some changes in the code to allow the build, but I think recent changes in Texture.cpp have broken the build against GLES/GLES2.

Re: [osg-users] osg::Array

Igor Lebedev wrote: Hi, Okay... I get indices like that: _indices = temp-asGroup()-getChild(0)-asGroup()-getChild(i)-asGeode()-getDrawable(0)-asGeometry()-getPrimitiveSet(0); //temporary; data existence is checked; i know it's bad and then indices[i] = (int*)(*_indices).getDataPointer();

Re: [osg-users] OpengGLES build failed

Hi Jason, Hi, Rafa, Great to hear someone is working on Android! Just curious, how are you handling osgViewer?  I tried to get an Android NDK build going with the crystax version as well, but I ran into a brick wall as soon as I got past osgUtil.  I didn't have time to try and work

Re: [osg-users] [forum] Building a scene graph for several thousandobjects

Hi, David, David Wilson wrote: Hi all, First of all, thanks to the folks who built this library. I'm building a 3D game engine based on osg::CompositeViewer featuring rather larger worlds built using cubes. I've attached an image of what I'm trying to create. I was using ShapeDrawable

Re: [osg-users] OpengGLES build failed

Rafa Gaitan wrote: My first approach is trying to get all built, I've made some changes into CMake for osgViewer, to not build if the system is not supported. I know is not the best approach, but I thing that using GraphicsWindowsEmbedded and using android sdk/ndk to create the graphics context

Re: [osg-users] osg::Array

Jason Daly wrote: Just to make sure you understand everything, some primitive sets include an index list, and others don't. You'll need to be sure you're accessing one of the DrawElements primitive sets to be able to get an index list. If you're sure your PrimitiveSet is a

[osg-users] Dragger Updated Matrix

Hi, I'm having a scene with many osg::Nodes and i'm using the osgmanipulator selection and dragger to select an object and then the dragger to drag the object in the scene. I'm using the linesegmentintersector to check for the intersections and then to move the objects around the scene. I

Re: [osg-users] osg::Array

Igor Lebedev wrote: _indices is osg::PrimitiveSet, so it throws an error: error C2676: binary '[' : 'osg::PrimitiveSet' does not define this operator or a conversion to a type acceptable to the predefined operator So i've got the wrong primitive set? Not necessarily. What you have is the

Re: [osg-users] Proximity Queries between objects

Hello Sanat, However, both the spheres (1 and 2) have the same centre coordinates. When I try the same thing using spheres that are bounds for the top-most PATNodes, I again get the same result (i.e. centre coordinates are the same). I find this confusing as both the nodes have different

Re: [osg-users] Displaying OSG data in MFC window

Hello Snehal, I am new to both MFC and OSG. I am displaying the 3D point cloud in OSG. I want to display this osg data in the window provided by the MFC. Is there any way to do it? Please reply... You can look in the OSG sources, there is an example called osgViewerMFC. In general, if you

Re: [osg-users] osg::Array

Hi, Ok. I did it like that. The same thing. Weird index values and bunch of polygons. So i should search in render function? Thank you! Cheers, Igor -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30909#30909

[osg-users] NITIN R (rangari.niti...@gmail.com) has sent you a private message

Title: Private Message from NITIN NITIN R has sent you a private message Click to read messagePlease read it or NITIN will think you ignored this :( This message has been forwarded at the request of rangari.niti...@gmail.com. To block all emails from FanIQ, please click

Re: [osg-users] Displaying OSG data in MFC window

Thanks.. But I am able to find this example. The link i found is not working. Can you plz post the link here? Sorry for bothering again... Thank you! Cheers, snehal -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30913#30913