Faster Cache Render

[Martin Facci]

Hi!

Working with the new 8K, of course, i can't get a 25FPs playback. Also, as you go and make the project more node/processing heavy it getts a little worse.
With Dragon i also never get 25 fps so i get used to work with the Render Cache option in DaVinci, wich is pretty good for my workflow.

I was wondering if anyone knows exactly what gets involved in making faster this render cache. (Besides changing the cache codec and putting the cache folder on a SSD drive)

It's related to GPu? Ram? Cores? Hard drive speeds? All together?

 

[Peter Moretti]

One thing I've learned about the Render Cache is that unless it's set for source, it renders from the output. That means that if you are using optimized media, the Render Cache is not going to back to the original source files, rather it's using the image from the optimized media. This means that it never makes sense, AFAICT, to use a Render Cache quality better than the optimized media quality. So for example, an optimized media of DNxHR SQ combined with a DPX Render Cache really doesn't make sense unless one has bandwidth to burn.

As for your situation, I would recommend looking at the Task Manager, Performance Monitor and GPU monitoring program like GPU Shark to see where your system's bottlenecks are.

I've found that debayer settings are really important, for a little bit of a interim quality hit you can significantly better performance.

And on the flip side, I've found Proxy Mode to be utterly useless, at least for improving playback on the edit page.