best settings for re-rendering later?

Randy Brown wrote on 8/31/2010, 8:23 AM

I can't seem to find an answer to this simple question:
I'm doing my first HD project where I have multiple sections to put together and then reassemble later in the final project.
When I did SD I would just render these small multi-track sections down to an uncompressed avi to compile later for DVD or whatever.
I am wondering now what settings are optimal for using later to compile into the master project...ie mp2, avi? do I really need "best settings" for the video?
I ask that because I just rendered a 6 minute project and it took 21 min with mp2 and the HDV 60i template with video set to "best".
Granted there was color correction on every little (5 sec or less) clip and 7 audio tracks but that seems like a long time to render for 6 minutes doesn't it....especially when the rendered clip is 2.27 GB in size?
Thanks very much,
Randy

Comments

TheHappyFriar wrote on 8/31/2010, 8:44 AM

I woudln't bother pre-rendering anything for rerender later. You're just wasting space & time @ this point with rendering to another format to go down to SD.

As for the length of time, doesn't seem bad to me. mpeg2 to mpeg2 is pretty fast & you're processing every frame, like you said. If it's ready for DVD & you want to save time later, render DVDA (or whatever app you plan on using) ready mpg/ac3 files.

Randy Brown wrote on 8/31/2010, 10:20 AM

Maybe I didn't explain myself well....this is annual project is usually an hour plus of hundreds of clips to build music montages, interviews,etc with different kinds of media from several sources submitted by different people (stills, different sizes of HD video, SD video, avhcd, etc ) if I don't pre-render I would think I would get so bogged down that V8.1 would become unresponsive and/or crash....wouldn't you think?
Also I'm not so worried about space I just want to make sure I'm using the optimum settings.
BTW delivery will be bluray, DVD, and internet.
Thanks very much Happy,
Randy

TheHappyFriar wrote on 8/31/2010, 11:42 AM

ahh, ok. :)

So you want to prerender each segment for later use? Since space isn't an issue, I'd suggest HDV.

ritsmer wrote on 8/31/2010, 1:43 PM

Since your highest delivery quality is BlueRay then you could use the template MPEG-2 Blu-Ray for your purpose. If you change the normal template to include audio too.
Under Custom/System you should also unclick "Save as separate ..." and also change Stream Type to Program.
After this you can save your new template.

Now, what you have then is a format that *mostly* will pass through later rendering processes without being de/en-compressed again - and so you get no quality loss after the first rendering - (see page 341 in the Vegas 9.0d manual (can be downloaded))

Randy Brown wrote on 8/31/2010, 2:22 PM

Thanks very much guys...ritsmer, did you mean page 382 in the manual (341 appears to be on scopes)?
Thanks again,
Randy

ritsmer wrote on 9/1/2010, 12:31 AM

No & yes: it depends on whether you use the Acrobat page numbering (then 349) or the Vegas manual printed page numbering (then 341).

It is quite interesting for your purpose and says: "If you've prerendered your project, those prerendered sections can be used for your final render etc." (search for it)

Randy Brown wrote on 9/2/2010, 11:29 AM

Sorry, I just now remembered this thread (I wish there was a "notify when someone responds" option).
Anyway I found it thanks very much!