Speed challenge - Rendering Chroma Key

will-3 wrote on 6/19/2008, 7:07 AM

I'm wondering how long it takes you guys to render 30 seconds of chroma key...

- with the chroma blur applied first in the effects chain...
- then the chroma key effect.

I'm sure it is processor and system dependant... but I wonder about the speed gained for various processors, processor speeds, & system configurations.

We are shooting talking heads with no other props. It takes hours to render about 12 minutes of content.

We have this on the tracks... top down...
1 - Media Generated Text (with Track Motion 2D Glow)
2 - Media Generated Text (with Track Motion 2D Glow)
3 - Video shot with green screen background
4 - Jpeg image background

We are running on a 2.01 Ghz PC with a meg of Ram. Windows XP.

I know faster is better... just trying to get some actual data about how much faster for specefic processors/configurations so we can make our next buy decision with some idea of what we will get.

Thanks for any help.

Comments

TheHappyFriar wrote on 6/19/2008, 7:23 AM

there's an "official" render test file that's used for system comparisons. do a search for "Rendertest" & it will come up.

rs170a wrote on 6/19/2008, 9:16 AM

With that slow a machine, I'm not surprised it takes hours to render 12 min. worth :-(
Two years ago, I did a 15 min. project that used a LOT of chroma key and other assorted FX.
My work machine (P4, 3.4GHz hyper-threaded) took 3 hr. to render.
When I got my new quad core, I loaded the project up and did the render in 27 minutes!!
Click on my name to see my system specs.
IMO, it was money VERY well spent :-)

Mike