[osg-users] osgViewer stand alone window problem with 3.1.0.`2

I am trying to get my osg project running on Ubuntu 12.04. I originally had it working with OSG 2.8.3, but I am trying to upgrade to OSG 3.0.1.2. I installed the following packages using Synaptics. libopenscenegraph-dev libopenscenegraph80 openscenegraph openscenegraph-doc

Re: [osg-users] osgViewer stand alone window problem with 3.0.1.2

That was weird. I rebooted my system to try and get a screen shot for you and now it is working in both the osgkeyboardmouse example and in my app. Not sure why that would have made any difference, but it is working great now and I did not do anything else to it. Thanks, David

[osg-users] AutoTransform and multiple views

Hi, I am using the Drag handlers with an autotransform on them (see code below). I have it set to AutoscaleToScreen. This works great as long as I only have 1 view of the scene. When I have multiple views though, I get a problem where zooming in on one will cause the autotransform to change

[osg-users] viewer focus event

Hi, Is there a viewer window focus event? I have been looking through the GUIEventAdapter and I do not see anything that would signal when a window gets the focus? Is it possible to get this info in OSG? Thank you! Cheers, David -- Read this topic online here:

[osg-users] How to calculate a Local transform to ensure specific world coordinates

Hi, This may be easy and I am just not seeing how to do it at the moment. I have a scene graph and I would like to add an object to an arbitrary node on the graph, but I want to make sure that the new node is positioned at the world coordinates that I have specified. So I need to calculate the

[osg-users] picking vertices

Hi, I want to let my user pick individual vertices on a model. I used the osgPick example code to get the picking of an object working great, but when I tried to use the code to pick the vertex it is not really working correctly, and I am not sure what I am doing wrong. Here is the code I am

Re: [osg-users] Simultanious use of TrackballDragger and TranslateAxisDragger

Ok. Looks like I was wrong. The CompositeDragger does exist in the older code, there is just not a separate cpp file for it. However, this still does not address my problem. I tried building my own composite dragger that combines the TranslateAxisDragger and the TrackballDragger, but the

Re: [osg-users] Simultanious use of TrackballDragger and TranslateAxisDragger

Thanks! It turns out that I had it almost right. It was adding the scaling to the translateaxis that made it work. I did not know that was necessary. Thanks for the help, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36066#36066

[osg-users] Simultanious use of TrackballDragger and TranslateAxisDragger

Hi, I am trying to use both a trackballdragger and a translateAxisDragger at the same time, but it is not working. The trackballdragger always takes precedence and the translate never works. I have to use an older version of osg (2.6.1). I think in the newer dragger stuff I could use a

[osg-users] user rotation manipulator problem

Hi, I am attempting to build a system that lets the users move/rotate objects in my scene. When the user selects an object an axis is shown that also has thin toruses around each axis. If they click on one of the axises they can move the part along that axis. If they click on one of the

Re: [osg-users] user rotation manipulator problem

Sorry, the forum thing cut my message off prematurely for some reason. I have posted some of the code, but for some reason it often rotates it to an orientation different that what was shown before these calculations. Does anyone have a more reliable and straightforward approach to this

[osg-users] erratic keypress event using embedded windows

I am working on an MDI app in .net that uses osg windows embedded in .net forms. The forms are created okay, but I am getting erratic behavior on the key up/down event processing. Sometimes it works, and other times it does not. Here is a link to my VS project

[osg-users] embedded .Net composite views not resizing

I am working on an .Net MDI application in VS9 and I am trying to use a composite viewer that has multiple user created embedded views. I have tested the creation/destruction of multiple standalone view windows with a composite viewer and it appears to work fine. However, when I embed the views

Re: [osg-users] disappearing line

Awesome! It looks like making the call to dirtybound fixed it. I tested it pretty hard and never had the problem come up again. Thanks. I did not know I needed to make that call. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26453#26453

Re: [osg-users] disappearing line

Thanks. Increasing the line width fixed the problem. I should have thought to try that. Thanks for the suggestion. I have an nvidia graphics card, so the graphics problem should not be what was causing the problem. -- Read this topic online here:

Re: [osg-users] disappearing line

I did some more extensive testing and it looks like I was wrong. Increasing the line width did not fix the problem. After zooming in to view at different perspectives it still dissapears from certain angles. -- Read this topic online here:

Re: [osg-users] disappearing line

One thing I forgot to mention previously is that the line end points are dynamically changed during the simulation. I am setting the endpoints based on the grab position of a picked object and the current mouse position. If I just leave the end points alone the line does not dissapear. It is

[osg-users] disappearing line

I have a line in my scene. Under most situations it is displayed perfectly fine, but as I rotate around to look at it then it sometimes disappears. Does anyone have any idea on what could be causing the line to behave like this, and if there is anything I can do to prevent it? If more details

[osg-users] Example code for mouse to world coordinates

I am trying to convert mouse coordinates to world coordinates. Does anyone have a suggestion of an example app or somewhere in the OSG code to at look to figure out how to do this? Thanks -- Read this topic online here:

[osg-users] Visibilty of objects

This may be a stupid question, but I have not been able to find a straight forward answer by googling, so I though I would ask for some help. I need to be able to turn the visibility of nodes on or off dynamically during a simulation. I assume I will use a stateset to do this, but I do not see

[osg-users] World to local coordinates

I need to convert the world coordinates of a contact force into the local coordinate system for the contacted part. Is there a straighforward way to do this in OSG? I saw a similar question here (http://forum.openscenegraph.org/viewtopic.php?t=884highlight=body+world+coordinate), but there was

[osg-users] Moving a line and its vertices

Hi, I have created a line in my scene based on the osggeometry example. I create the line and it displays fine, but I also need to change the end-points on the line dynamically as the simulation progresses. I started out by re-setting the vertex array data at each step in the render loop, but

Re: [osg-users] Moving a line and its vertices

I used some different keyword google searches and ran across this post (http://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg31811.html). Making these changes fixed the problem. Thanks for the help everyone. David -- Read this topic online here:

[osg-users] Scale mesh/terrain once before adding to scene

I am new to OSG, so perhaps this is simple and I do not understand how something is working. I want to scale a terrain once immediately after it is loaded, but before it is added to the scenegraph. I know I can do this by adding it to a matrixtransform node that is scaled, but that seems

Re: [osg-users] newbie texture question

You rock Alberto!! I flipped the bmp and it mapped correctly. It would never have occured to me to do that in a million years on my own. Thanks. I tried to step into the osg code, but it did not work. It just stepped over it. I am loading the debug versions, so I am not completly sure why it is

Re: [osg-users] newbie texture question

Ok. I can get the mesh to work using the mtl file, but I have gone back and tried to get the basic geometric textures working and I am still having problems. I created a simple geometry for a box using the code shown below. I set it up to try and place the texture file once on each face. When I

Re: [osg-users] newbie texture question

A previous post suggested I try something other than a bmp. So just to make sure it was not my image I tried a different jpg instead and it worked fine. I then went back and tried it just using the standard osg::box and it worked as well. So It looks like the bulk of my problems was the image

Re: [osg-users] newbie texture question

Ok. I still think it is silly that the default implementation does not produce a basic texture mapping, but I will accept that. However, I also tested a texture mapping using a loaded .obj file. It has the explicit u,v texture coordinates defined in the file, but it still does not work. I have

Re: [osg-users] newbie texture question

I added the recommended line to the mtl file and it did apply the texture to the object this time, but it was still incorrect compared to what is seen in directx. See picture. I tried a couple of the options for the map_Kd command and none helped. Also, this will not help me in the long run

[osg-users] newbie texture question

Hi, I am new to OSG and I am attempting to port some work that was done in directX over to OSG. I am using some of the basic geometric objects like osg::box and osg::sphere. I got those working like I wanted, but when I tried to add texture mapping to them the results are very different than