Just as a matter of information: I have been fighting perf problem for a while and have now manage to actually succeed performance wise: # first get enought RAM!!! My simple app requires 150Meg which is too much but not really a problem anymore. # Then get a decent graphic card which is compatible with Java 3d: it is the difference between night and day for US 250$ (indeed, I am not talking professional cards here, just 3D game mass produced cards)... a gamble there as Sun people definitively refuse to give any hint on what can/can not work with Java3D...:-( #Then be wise; remove behaviours you do not need, trim your scenes, etc If possible, use a profiler to see where your bottlenecks are: you may be surprised... And use jdk1.3 alpha; twice as fast on my boxes. It is very easy to reduce the number of object in a scene by half without any visual impact.... Give you better result than C++ usage would give you. Java is NOT slow in itself: gc, wrong use of java is..... In short, with the right hardware US$2500 maybe, you can have decent perf. Olivier Happier now than he was a couple of month ago. -- Olivier Fillon Minestar Project [EMAIL PROTECTED] Mincom Limited Ph.+61-7-3303-3344 61 Wyandra Street Fax+61-7-3303-3232 Teneriffe Qld. 4005. Australia Company home page: http://www.mincom.com/ Personal home page: http://www.powerup.com.au/~fillon This transmission is for the intended addressee only and is confidential information. If you have received this transmission in error, please delete it and notify the sender. The contents of this E-mail are the opinion of the writer only and are not endorsed by Mincom Limited unless expressly stated otherwise. -- -----Original Message----- From: Daniel Selman <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Sunday, December 05, 1999 10:40 AM Subject: Re: [JAVA3D] Question for the folks at SUN - but im not from sun ! >Don, > >IBM also have a native compiler. I don't know whether it works with J3D. > >I don't think a native compiler will really help with performance though, >but I could be wrong. I'd be interested to see any benchmarks if anyone has >any (general Java and/or J3D). > >Sincerely, > >Daniel Selman > >[EMAIL PROTECTED] >http://www.tornadolabs.com > > >-----Original Message----- >From: Discussion list for Java 3D API >[mailto:[EMAIL PROTECTED]]On Behalf Of Dave Frost >Sent: 04 December 1999 06:52 >To: [EMAIL PROTECTED] >Subject: [JAVA3D] Question for the folks at SUN - but im not from sun ! > > >Hi, > >Just thought i would point out that cygnus have produced gcj, compile >java source/class files to machine code. It is in the very early >stages, doesn't even have most of the awt. But i suppose this a >similar situation to the java port to linux. i.e. it may take a while >but it will get finished, and i should think at some point it will have >java3D. > >But others may know more about this ! > >Dave > >"Casteel, Don" wrote: >> >> I know Java3d is intended primarily for bringing cross-platform 3D >> functionality to the web. The price we pay for cross platform >functionality >> is speed. By relying on the JRE we sacrifice a lot of speed as compared to >> C++ for example. >> >> I really do like Java, (I've never been able to understand C++). Java is >> easier to understand and much easier to work with. It's a nicely >organized >> language and well thought out. >> >> However I mostly write applications for data analysis and visualization. >> What I really need is a Java class for compiling binary executables for >> Windows from Java Applications. The executables should be entirely self >> contained, and run at speeds rivaling C++ programs. >> >> I'm sure there are many programmers out there who would like the same >> capability, I figure game programmers would really benefit from it. >> > >=========================================================================== >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". > >=========================================================================== >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". > =========================================================================== 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".
