Render Question

MarkCC777 wrote on 5/26/2007, 8:55 AM
I am a fourth grade teacher and I'm making a video yearbook for the students in my class. I plan to give each student a copy. My question...I'm finished creating the video and it's now time to render. The content is mostly still photos with various transitions. There are a couple of video clips inserted though. One of the clips is in .avi format and the other is .mpg. Any suggestions on the render type? What template should I use? I've used .avi before but I'm not sure if this is giving me the best quality.

Mark

Comments

TheHappyFriar wrote on 5/26/2007, 9:23 AM
on DVD? If it were me & I had the space, I'd render the WHOLE project to a DV AVI & then render that AVI to mpg2 for DVDA.
Chienworks wrote on 5/26/2007, 12:36 PM
If it were me, i'd render the whole thing directly to MPEG-2 for DVD Architect. Unless you're planning on printing the finished project back to MiniDV, there isn't much need for doing an AVI render first.
TheHappyFriar wrote on 5/26/2007, 5:21 PM
depending on the complexity of the project, project to AVI to mpeg could be a lot faster render. Plus then if you wanted to re-render it to another format (another mpeg @ different settings, wmv, etc.) it's faster.
Chienworks wrote on 5/26/2007, 8:21 PM
Just curious, but has anyone ever timed:

a) project -> AVI -> MPEG2

vs.

b) project -> MPEG2

to see if a) is faster than b)? I've done this way more than a few times and b) has always been faster than a) by a substantial margin. True, the first part of a) (project -> AVI) is faster than b) just a tiny bit, but then the second part (AVI -> MPEG2) has to be done and this far more than makes up the difference.

So, just curious, but has anyone ever actually timed a) to be faster than b)?

Stephen does make a valid point though that if you're going to be rendering to multiple output formats then an initial AVI render and doing subsequent renders from that AVI file can be faster than rendering from the project each time.
MarkCC777 wrote on 5/27/2007, 7:13 PM
Thanks for all the suggestions everyone. I ended up rendering the project using AVI template. The 18 minute, mostly picture slideshow, took approximately 45 minutes to render. I didn't try the mpeg template because it said that I would have to render the audio separately. Since I'm still learning this software, I didn't know how to do that. Seems like that would just be more work though.

Mark
Grazie wrote on 5/27/2007, 9:55 PM
There is yet another reason for doing an interim AVI - mistakes!

#1 - Spilling mistakes. Doesn't happen often, but I'd rather correct in the AVI.

#2 - Colour Correction. Yes sometimes I DON'T see the CC needed until . .

#3 - Sequencing and transition flow. Sometimes I don't "see" my clumsy, awkward and downright "naff" results UNTIL I see a/the pre-finished product. And that is even AFTER countless RAM build and so on. Selective pre-rendering is the next best thing .. however . . this IS another case for pre-rendering file retention and management.

#4 - Something finished and in the back pocket! Insurance for that one time WHEN the mpeg render goes tits-up.

Grazie



John_Cline wrote on 5/27/2007, 10:36 PM
As myself and others have pointed out in other posts, from a quality standpoint, it is better to go directly from the timeline to MPEG2 rather that render to AVI and then MPEG2. This is particularly true in this instance where most of the material is stills. Stills are essentially a 4:4:4 colorspace, DV is 4:1:1 and DVD MPEG2 is 4:2:0.

If you go directly to MPEG2 from the timeline, you will end up with 4:2:0 on the DVD and keep as much color information as possible. If you render to 4:1:1 DV AVI first, then encode to 4:2:0 MPEG2, you will actually end up with a 4:1:0 on the DVD. This means that only 12.5% of the color information in the original stills will end up on the DVD.

John
Grazie wrote on 5/28/2007, 1:46 AM
I'll use your advice John. I'll treat the pre-draft AVI as just that and then render to an MPG.

Where does that leave those amongst us that render to new track and carrying on using that "Render to New Track" file as part of the finished project?

Any thoughts John? It would appear that that file would also take a similar quality hit? Yes? No? I'm goning to need to re-think the value and function of Vegas "Render To New Track" now. Also where does that leave the all important pre-render? Yikes! Does that do it too? Or are all of these uncompressed? Or they can be?

Interested to hear your thoughts on that too.

Grazie

Chienworks wrote on 5/28/2007, 3:47 AM
I never really saw much benefit to rendering to a new track. RAM previews handle everything i'd ever want in that function, and do so without the quality hit. I just do one final render at the end.
Grazie wrote on 5/28/2007, 4:25 AM
Depending on the complexity and LENGTH of the material for viewing, RAM renders are fine. I choose relatively, tiny, discreet portions, but not longer sustained lumps. It is me longer lumps that I'm wanting to see how they develop that I either use Pre-render or Render to new track. These longer portions don't get a chance with my RAM renders.

I'm always wanting better Previewing - Speed, clarity and narrative.

As with telephoto, wanting more reach, more Preview and faster!

Grazie