Re: [osg-users] Incorrect zfar/znear when scene rendered under a PRE_RENDER camera

2013-06-05 Thread Fred Smith
Thanks Farshid, that explains it all. Farshid Lashkari wrote: Hi Fred, OSG does compute the correct near/far values for pre-render cameras, assuming it is enabled for it. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=54463#54463

Re: [osg-users] Incorrect zfar/znear when scene rendered under a PRE_RENDER camera

2013-06-03 Thread Fred Smith
Robert, Sorry to further fill in this thread with a question - but couldn't it be that the OSG indeed correctly calculates the near/far values for my pre_render camera, and that I simply just do not know (yet) a proper way to correctly retrieve the projection matrix? I see the CullVisitor

Re: [osg-users] Incorrect zfar/znear when scene rendered under a PRE_RENDER camera

2013-06-03 Thread Farshid Lashkari
Hi Fred, OSG does compute the correct near/far values for pre-render cameras, assuming it is enabled for it. As you can tell, the main problem is getting access to the computed projection matrix. What I have done to get the computed near/far values from camera nodes is to attach a cull callback

Re: [osg-users] Incorrect zfar/znear when scene rendered under a PRE_RENDER camera

2013-05-31 Thread Robert Osfield
Hi Fred, The OSG by default automatically computes the near/far values during the cull traversal so you don't normally need to worry about the specific settings of near/far. The 1.0 and 1.0 are simply default values and are of no particular note. The osg::Camera inherits from

Re: [osg-users] Incorrect zfar/znear when scene rendered under a PRE_RENDER camera

2013-05-31 Thread Fred Smith
Hi Robert, Both my master and slave cameras have matching cull settings, set to COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES. Somehow though, this doesn't work when my scene is under the slave camera. My bounding box is defined as a callback on the unique leaf drawable node I have in my graph. Z

Re: [osg-users] Incorrect zfar/znear when scene rendered under a PRE_RENDER camera

2013-05-31 Thread Fred Smith
There might be one wrong thing. When creating the slave camera, I set it up as a child of my master camera. Should I used osg::View::addSlave(Camera) instead, and leave my master camera's scene graph empty? Sorry if this question has been answered before I am all mixed up with regards to the