DR 15 vs DR 16 - framing issue

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Robin Erard

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DR 15 vs DR 16 - framing issue

PostTue Jun 25, 2019 3:30 pm


I was making some test with material from Cintel scanner and discovered something problematic with resolution render into DR 16. I made a small video about it (sorry for my english, I normally speak french) :

1) Why Blackmagic changed the way render resolution is process ? On DR 15 it was perfect.
2) Why the framing change when I change the resolution ? On DR 15, it was not the case.


Robin Erard
Colorist, director, editor
Nord 13, 2300 La Chaux-de-Fonds

James Little

Blackmagic Design

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  • Joined: Mon Oct 10, 2016 12:15 am

Re: DR 15 vs DR 16 - framing issue

PostWed Jun 26, 2019 3:16 am

Hi Robin,

I imagine that in Resolve 16 they simply added the warning, as the "Timeline Resolution" really is the absolute resolution, so 'up-scaling' at Render is indeed something to worry about as you've already suffered the resolution loss. I'm not with the Resolve team so if that's contentious I'll leave it with somebody from there to reply.

However, I believe what is going on in your case, is that you're ultimately after 4096x3072, that is 1.33, HD is 1920x1080 1.77, which is 1/4th of Ultra HD, which is 3840x2180, that is 1.77. So if you're expecting the resize operation to track your timeline resolution change perfectly, you should be upscaling your timeline resolution to 3840x2180 from HD such that the aspect ratio is the same, else the resize operation has to 'do its best'. The Cintel Scanner is 4096x3072 full aperture, whereas the actual image area for 35mm formats is never greater than 3840 (by design).

So I think maybe it's just a confusion and nothing actually wrong?



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