Re: [osg-users] osg(terrain) krasches on a double delete

Hi Robert, Ok, I see the problem. If I get the time later today I will look into the code in depth. /Ola On Tue, 21 Aug 2012 20:43:44 +0200, Robert Osfield robert.osfi...@gmail.com wrote: Hi Ola et. al, I've looked at the problem Terrain containers and they present an interesting

[osg-users] Self-Shadowing of Billboards

Hi all I'm thinking of a solution to prevent self shadowing for billboards: If I can determine the radius of the billboard, and verify that the surface that casts shadow on the billboard is further away that the radius, I could make sure that all objects can cast shadows on the billboard, but

Re: [osg-users] Safe downcast

Hello, For the answer, I suggest you revise the C++ docs about dynamic_cast and also check the class hierarchy of OSG's node types. dynamic_castA* succeeds for any pointer to an object of class A or any pointer to an object of a derived class of A. So even if you don't have a proper Group

Re: [osg-users] Self-Shadowing of Billboards

Hi shadow2DProj(sampler, tc.xyzw)  returns float result of shadow comparision test (so it is eccentially 0 or 1) between value stored in texture and tc.z/tc.w, it may be filtered across 2x2 tap (PCF) if texture filter set to linear and such filtering supported by hardware (obviously, with this

Re: [osg-users] Bug in Sequence.cpp

Hi Sebastian, On 15 August 2012 10:34, Sebastian Messerschmidt sebastian.messerschm...@gmx.de wrote: The problem was in one of my visitors, that was setting the wrong indices. Anyways, any objections introducing a check in the setInterval function? I have no objection to adding a check, or at

Re: [osg-users] Problem using AutoTransform with LOD node

Hi Michael, As the AutoTransform changes size it's bounding volume will change will effect the LOD selection so the interaction may well be awkward. It would be better to place the LOD above the AutoTransform, or probably even better to avoid using the combiation of the transforms and LOD's that

Re: [osg-users] [vpb] why the ive created by osgDem more butiful beautiful than vpbmaster?

Hi Gaichao, vpbmaster uses osgdem to create all the terrain, the only difference is that vpbmaster will be breaking up the building into separate tasks that handle different regions. Within each region osgdem creates all the tiles within the region and automatically adjusts all the boundaries so

Re: [osg-users] Camera manipulation with trackball manipulator

Hi Zak, I would recommend writing your own CameraManipulator to do exactly what you want, or simply set the Viewer's Camera's ViewMatrix directly yourself on each new frame. Robert. On 3 August 2012 16:42, Zak Stromquist strom...@umn.edu wrote: Hi, I'm trying to create a camera at a fixed

Re: [osg-users] Cannot add dragger to group node

Hi Oliver, There isn't much other people can do to help with so little information. First up does osgmanipulator work for you? When you get a crash what is the stack trace? Robert. On 7 August 2012 11:14, Oliver Neubauer dewe...@gmail.com wrote: Hi, I'm having a problem setting up any type

Re: [osg-users] Make osg::discardAllGLObjects() also discard shaders?

Hi James, You'll need to tell the scene graph first that you are disposing of a graphics context, this can be done via rooNode-releaseGLObjects(State*), then after this the internal buffers of released GL objects will need to be deleted or discarded depending upon whether you have have control

Re: [osg-users] VBO

Hi Tina, On 13 August 2012 16:41, Tina Guo guoyiting1...@gmail.com wrote: Now I am trying to use VBO. And I got false in viewer-getCamera()-getGraphicsContext()-getState()-isVertexBufferObjectSupported() You'll need to have the context realized first before this value is set. I am not sure

Re: [osg-users] object disappears when using VBO

Hi Tina, On 14 August 2012 21:56, Tina Guo guoyiting1...@gmail.com wrote: I am using VBO on simple models, it works fun. When the model becomes very complex, my object just disappear, and isVertexBufferObjectSupported() returns true in my case. Might you be running out of memory?? Robert.

[osg-users] How to get current position of osgViewer camera

I want to query osgViewer to get the current camera position (Note: not the home position). As I move around in a scene I want to know the current coordinates of my eyepoint so that I can save it to a configuration file so that the next time I run my app I can read that position and set it as

Re: [osg-users] How to get current position of osgViewer camera

Hi check if getViewMatrixAsLookAt(...) on viewer camera is sufficient for your needs Cheers. 22.08.2012, 22:21, Paul Leopard paul.leop...@gmail.com: I want to query osgViewer to get the current camera position (Note: not the home position). As I move around in a scene I want to know the

Re: [osg-users] How to get current position of osgViewer camera

Absolutely perfect. Thanks so much! Paul -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=49412#49412 ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] object disappears when using VBO

Objects randomly disappearing are usually a culling issue, but it's strange if it only happens when using VBOs. Also, is your graphics driver up to date? I just got a new machine with Radeon graphics, and the Linux driver is kind of a mess with lots of incorrect OpenGL state. -- Terry Welsh

Re: [osg-users] Possibility of an OSG bot

I have been postponing the occlusion for now. So far things seem to be working alright. I have found all the intersections and made a geode to collect them all, using storeGeode-containsDrawable(draws) to remove any duplicates. But with the a file (that I'm not sure I can share, for copyright

[osg-users] RESOLVED Re: Repository broken with SVN =1.7.5?

Hi guys, On 19/08/12 12:12, Ulrich Hertlein wrote: That's very well possible, I haven't done a clean checkout for a long time. The repository is back up and a fresh checkout does not have the svn:externals anymore. Cheers, /ulrich ___ osg-users