[Liman Wong]

Any suggestion? Which one is good for writing 3D games?

[Angus_D]

There are only 2 IDEs for OS X that you should consider (I'm not including REALbasic because, IMO, it's lame, and it's definitely not suited to intensive tasks like 3D).

Metrowerks CodeWarrior is attractive for Carbon development, especially if you want your application to run on OS 9 too. It is, at the moment, best for using to port OS 9 apps to OS X. It costs around $400, I think.

If you want to use Cocoa, you will have to use Apple's Project Builder (supplied on the Developer Tools CD). It's free. It can compile Carbon too, but can't, however, compile CFM apps that will run on both OS 9 and OS X.

Of course you could investigate Java3D, i'm sure i heard someone has got it working, but I wouldn't go with it if it was me writing the program.

[AirSluf]

I got Java 3D working but wouldn't do game dev on it yet. I mostly need it for school related stuff and my prof thinks quaternions will save the world (J3D does those nicely). There are some "undocumented features " in the current release as well that will waste a lot of time if you are not careful.

It may be good enough for slower web based worlds though, just not fast paced games.