For the platform independence, we switched from c to java3D. I have never done any accurate quantity analysis on the java3d performance. I simply address the fact with my experience. The biggest problems are memory and speed.
In c with Motif, OpenGL, we could handle 800x800 grids with the objects as individuals on terrain grids, but java3D can handle 25x22 grids only with shared objects. The reasons for such big difference includes using Shape3D to represent the objects instead of Shape2D implemented in c because the OrientedShape in j3d does not work well with Shared Group. Lan At 12:06 AM 2/25/2002 +0100, you wrote: >In my opinion, speed is the more important weakness. But I remember when > >I have a 486 and W95, DirectX was very slow. Today DirectX is very fast >on a Pentium IV. Give some time to Java3D! > >Elsam, Robert wrote: > >>I have just started researching into the capabilities of the Java 3d API and >>I have found it quite easy to find information concerning the strengths of >>the Java 3d, but a little more difficult to find information that >>illustrates the weaknesses of it. If anyone could inform me of any >>weaknesses they are aware of through their own expreince or otherwise I >>would be very grateful. I am particuarly interested in how Java 3d compares >>to other 3d graphics utilites particuarly open Gl. >> >>Rob Elsam >> >>=========================================================================== >>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". Lan Wu-Cavener Research Associate and Programmer Dept. of Landscape Architecture =========================================================================== 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".
