Re: [osg-users] Visualizing a light cone in scene

2017-01-17 Thread David Heitbrink
Basically What you want is the situation where the peak of the cone is at 0,0,0, and the base is at your negative direction pointed towards the ground. You may have to put transform between say the DOF node, and the cone. You might also just forgo the OSG cone, and have a model where the peak

Re: [osg-users] Visualizing a light cone in scene

2017-01-15 Thread Suraj Paul
Hi David, Thanks for the tips on my problem. Yes, i am trying to use (at present) light cone to show in my scene what its highlighting. But it fails to show the cone light beam emanating from the aircraft. As u suggested, i tried with transparent cone. But The problem is i am not able to

Re: [osg-users] Visualizing a light cone in scene

2017-01-15 Thread Suraj Paul
Hi David, Thanks for the tips on my problem. Yes, i am trying to use (at present) light cone to show in my scene what its highlighting. But it fails to show the cone light beam emanating from the aircraft. As u suggested, i tried with transparent cone. But The problem is i am not able to

Re: [osg-users] Visualizing a light cone in scene

2017-01-15 Thread Suraj Paul
Hi Ekaterina, Thanks for the clue. I am at present doing the round trace in a brute force way: I am retaining the rendered base circle of cone in each of the position of the aircraft. Next when the aircraft moves to next position, i again draw the new base circle, while i translate the cone i

Re: [osg-users] Visualizing a light cone in scene

2017-01-13 Thread Ekaterina Fokina
Hi, I am doing something similar. If you want to have your cone tilted attach it to your air vehicle using MatrixTransform, like in the example "osgspheresegment": osg::MatrixTransform* positioned = new osg::MatrixTransform;

Re: [osg-users] Visualizing a light cone in scene

2017-01-13 Thread David Heitbrink
How are you planning on doing the search light? Are you planning on doing it as a semi-transparent cone? If so I would basically recommend looking at the DOF nodes (osgSim::DOFTransform), and look to attach the DOF node to your aircraft, and then placing your code under the DOF node. As per

Re: [osg-users] Visualizing a light cone in scene

2017-01-12 Thread Suraj Paul
Hi, Any suggestions or clues ? ... Cheers, Suraj -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=69963#69963 ___ osg-users mailing list osg-users@lists.openscenegraph.org