Rendering many complex projects to multiple target...

klt wrote on 2/2/2019, 1:33 PM

Hi, I thought I ask experienced people, maybe You come up with an idea better than mine...

How would you do this?

So I have 35 projects from the past, archived, all of them 1280x720 25p.

Those are somewhat complex projects, with 8..12 tracks, that varies. So rendering them takes a while.

Each project is long, 80 to 120 minutes, that varies...

I need to render all those projects until the end of the next week.

Targets:

-1280x720 25p AVC mp4 (multiple bitrate, ~15Mbps for quality, 4Mbps for easy transfer/download)

-640x360 25p (low bitrate, I guess this will be only preview)

-mp3 (the soundtrack only, 44,1kHz stereo, multiple bit rates: 256kbps, 128kbps)

Goal would be to finish on time, and not to sit beside my computer all the day - automate as much as possible.

My idea was to add my archived projects as nested projects to a container - already done this step.

Then add regions, and batch-render those to an intermediate (XAVC-I???), also to the mp3's. And then encode the intermediates also with a batch render.

Do you have an idea to make this process more efficient? If not XAVC-I, which codec should I try to make it fast?

Thanks in advance.

Comments

john_dennis wrote on 2/2/2019, 1:56 PM

I've rendered the same project to multiple output formats from multiple Vegas instances open at the same time. There is a point where the system starts to thrash and all the projects take longer than rendering in succession would have. That depends largely on your system and I/O. If you have lots of disks, it might make sense to duplicate your source disks, if possible. The render target probably won't get hit that hard.

In your batch render scenario, I don't see the point of the intermediate.

Have you thought about having multiple batch render jobs running at once, each rendering a different output type? I've never done that.

Likely, I'd just bury the machine with multiple instances of Vegas, go for long walks, drink something and come back every so often to check on the progress.

klt wrote on 2/2/2019, 2:06 PM

Thanks @john_dennis,

The point about the intermediate is that because of the structure of the project the render is slow. So I have to really render the projects only once, not 3 times.

Multiple instance is a good idea, I'll break the long container into 2 parts. I'm currently rendering the audio parts.

That all is about 62 hours long, would you guess Vegas resets timecode couple times in this container? 😀

-Oh yes, the projects are on an external USB3 disk. I render to the disk on the inner SATA.

OldSmoke wrote on 2/3/2019, 8:52 AM

I would use Vegasaur’s Transcoder. I have done batch rendering to different formats many times with it.