Re: [JAVA3D] Sending large 3D images over the Internet.

2005-05-21 Thread Darrin Smith
OK, I'll forget about using the CompressedGeometryFile entirely as you and Laurent Gilson suggested.   He did say that there should be a way to assemble a CompressedGeometry file in the client applet though.    Does something like this sound plausible?   1) Convert my .obj files to .cg files

Re: [JAVA3D] Sending large 3D images over the Internet.

2005-05-21 Thread Mark Hood
> Date: Sat, 21 May 2005 18:24:36 + > From: Darrin Smith <[EMAIL PROTECTED]> > > Again, it isn't the decompression that is slow, nor was it the reading of the > compressed image off of the server or the transmission speed (local Intranet > witha fast network). The problem was somewhere

Re: [JAVA3D] Sending large 3D images over the Internet.

2005-05-21 Thread Darrin Smith
Either I'm not understanding what you mean or you didn't understand my problem.   Here is thescenario:   I have the images in .obj format on the server.  These can be compressed there before hand or on the fly using a servlet into the .cg format.   The destination of these images will be an ap

Re: [JAVA3D] Sending large 3D images over the Internet.

2005-05-21 Thread John Wright
Darrin, First I think you'd have to decide whether you want lossy or lossless compression. You're going to always have a trade-off issue between network performance vs amount of data you send. i.e. there is no "magic" solution that is going to send huge models without some loss of information.

Re: [JAVA3D] Sending large 3D images over the Internet.

2005-05-21 Thread Laurent Gilson
Hello > Using the Java3D compression mechanism (objtocg) works VERY well as the > files get down to around 400K to 600K, but the CompressedGeometryFile was > not written to allow the use of URLs. Why do you use CompressedGeometryFile at all ? Create the compressed data as usual. On the client-si

[JAVA3D] Sending large 3D images over the Internet.

2005-05-21 Thread Darrin Smith
I have some large models that need to be displayed in a Java3D applet. The files are 8 or 9 meg each in .obj format, and two will be needed each time the applet runs. What happens is the applet calls back to a servlet using a URL that has a file name (the name of the 3D image) attached as a paramet