David Yazel wrote: > I have not played much with the graphics 2d system in Java3d. When I tried > it 2 years ago it wasn't working very well.
Yes, and by Sun's own admission, the performance is fairly horrible. Note that they recommend creating your own image, fetching the Graphics2D context from that, drawig to the image and then blitting the image using the drawImage call of the Canvas3D's Graphics instance. In 1.3 they did a lot of performance work to optimise the blit path so that this has far less performance impact than it used to. A second option, as used by the RasterTextLabel is to use Raster objects. These are a little more flexible than just straight 2D calls in that they move with the scene graph so if you want labels that stuck to a certain part of your sphere, they work well. > We do all our overlays with 3d geometry and have been pretty happy with it. > Here is an example: > > http://www.magicosm.net/screenshots/cosm740.jpg > > I think the j3d.org has an overlay system which was originally based on our > work, but it may have been compeltely replaced by now, not sure. Some bits remain the same, some have changed. A lot of work that I've done recently on them is to remove a lot of the cruft. I found there were a lot of calls in Dave's code that did nothing so I cleaned out a lot of that and I also changed around the window management code. Dave's code was ripped from his game where he had an internal event delivery system (that looked remarkably like the Windows Message Queue system) and did a lot of the window calculation and event delivery directly. This was causing a lot of problems running with a system that didn't hav a lot of these pre-defined or you wanted to use alternative layout mechanism so I stripped and rebuilt that part of the code. There are now separate window managers, layout managers and overlays so you can piece together the bits you need for a particular application. The current architecture looks a lot like the X Window System architecture. It's also really stable and we've been using it on a bunch of different applications recently. If you're at Siggraph I should be able to demo a few of these to you. -- Justin Couch http://www.vlc.com.au/~justin/ Java Architect & Bit Twiddler http://www.yumetech.com/ Author, Java 3D FAQ Maintainer http://www.j3d.org/ ------------------------------------------------------------------- "Humanism is dead. Animals think, feel; so do machines now. Neither man nor woman is the measure of all things. Every organism processes data according to its domain, its environment; you, with all your brains, would be useless in a mouse's universe..." - Greg Bear, Slant ------------------------------------------------------------------- =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
