Hi Robert, I'm talking about ground vehicle simulation where all HeightAboveTerrain calls are related to previous calls (ie. the position is < meter away from the last call). Most of the calls will be for the vehicle that is being driven. These calls being over 1000Hz. The other calls consisting of surrounding vehicles in a 1km radius around the driver.
So, we can batch the height querries, and they are suitable for caching. But, upon review, I don't see any way to get the normal of the terrain. Of course, this is necessary for vehicles that follow the terrain. Zach -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, December 08, 2006 04:15 To: osg users Subject: Re: [osg-users] osgSim::HeightAboveTerrain Hi Zach, On 12/8/06, Zach Deedler <[EMAIL PROTECTED]> wrote: > Is this efficient? I mean can I make 40,000 calls/second for example > (if I don't draw anything)? It totally depends upon your database, and whether its already paged in. There is support for a cache to help improve coherency. The most efficient way to use it is to batch your height querries, this ensures as much coherency as possible. 40,000 per second is alot though, what granulatity are we talking about? Robert. _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
