network rendering problems???

miguelafi · March 30th, 2003

i have a small rendering network of 4 pcs, but i can process a heavy animation with network rendering in viz 4 im having problems when the machines try to write each part in a common directory, using a local unit in each machine works pretty fine, but they are separate videos and every one is incomplete, thanks if anyone can help me with this

sorry for my english.

gracias

quizzy · March 30th, 2003

do not render to .avi or .mov but to seperate images (jpg or something else) that should do it. Render them in some other program to one movie file.

Ernest Burden · March 30th, 2003

Quote:

do not render to .avi or .mov but to seperate images (jpg or something else)

Do not render to jpg files, as those will have compression, and then when you complie the animation in Premiere or whatever, you will be adding a new compression on top of it.

Render to TIF, if you can. The files will take up a lot of disk space, so be sure you have the HD space available before rendering.

quizzy · April 1st, 2003

you can render to jpg. Let me explain:
If you would render a 640x480 res sequence at 25 fps. If you would render one jpg, how much Kbyte would one jpg be? Well, 100 - 200 Kbytes (depend on the amount of color and compression. I would suggest that you go for maximum quality for the jpg-files. How much Kbyte would this be per second animation? 25 * 200 Kb = 5 MB. Believe me, your final animation for web or cd-rom will not be 5 MB per second.. So if you don't have much hard drive space just render to jpg's, you won't see the compression degradation in your animations due to the use of jpg's. The final compression codec however is going to determine your final quality (wich will be allways worse than the jpg')
If you are rendering for television or film, its a whole different story. Then you should render top quality uncompressed images..

ingo · April 1st, 2003

As mentioned before the best way is to render single images, like tif or tga. So you can easily put those image sequences together at do the usual compositing and cutting, and compression is of course the last thing you do before you send out the animation file.

HTH
ingO

Brian Cassil · April 2nd, 2003

I agree with ernest and ingo. Hard drive space is cheap these days anyway.

March 30th, 2003	#1 (permalink)
miguelafi Member Join Date: Mar 2003 Location: Guadalajara Age: 30 Posts: 81 Name: Miguel Flores	i have a small rendering network of 4 pcs, but i can process a heavy animation with network rendering in viz 4 im having problems when the machines try to write each part in a common directory, using a local unit in each machine works pretty fine, but they are separate videos and every one is incomplete, thanks if anyone can help me with this sorry for my english. gracias __________________ Miguel Angel Flores Izquierdo Arquitectura y Representacion en 3D www.ar3d.net

March 30th, 2003	#2 (permalink)
quizzy Super Moderator Join Date: Apr 2002 Location: Utrecht, The Netherlands Age: 35 Posts: 1,610 Name: Michiel Quist	do not render to .avi or .mov but to seperate images (jpg or something else) that should do it. Render them in some other program to one movie file. __________________ Michiel Quist http://www.3idee.nl

April 1st, 2003	#4 (permalink)
quizzy Super Moderator Join Date: Apr 2002 Location: Utrecht, The Netherlands Age: 35 Posts: 1,610 Name: Michiel Quist	you can render to jpg. Let me explain: If you would render a 640x480 res sequence at 25 fps. If you would render one jpg, how much Kbyte would one jpg be? Well, 100 - 200 Kbytes (depend on the amount of color and compression. I would suggest that you go for maximum quality for the jpg-files. How much Kbyte would this be per second animation? 25 * 200 Kb = 5 MB. Believe me, your final animation for web or cd-rom will not be 5 MB per second.. So if you don't have much hard drive space just render to jpg's, you won't see the compression degradation in your animations due to the use of jpg's. The final compression codec however is going to determine your final quality (wich will be allways worse than the jpg') If you are rendering for television or film, its a whole different story. Then you should render top quality uncompressed images.. __________________ Michiel Quist http://www.3idee.nl

April 1st, 2003	#5 (permalink)
ingo Veteran Member Join Date: Sep 2002 Location: Hamburg, mostly harmless Posts: 642 Name: ingo M	As mentioned before the best way is to render single images, like tif or tga. So you can easily put those image sequences together at do the usual compositing and cutting, and compression is of course the last thing you do before you send out the animation file. HTH ingO __________________ ingo *** www.im-graphics.com

April 2nd, 2003	#6 (permalink)
Brian Cassil Moderator Join Date: Apr 2002 Location: Salt Lake City, Ut. Age: 36 Posts: 2,021 Name: Brian Cassil	I agree with ernest and ingo. Hard drive space is cheap these days anyway. __________________ "writing notes is quieter."

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