Full range render

[Joseph Owens]

[Robin Erard] “why this function “render video scale” exists ?”

Its for the handful of individuals who grade for broadcast and other tasks that use 64-940.

jPo

You mean “Old Ben”? Ben Kenobi?

[Christopher Adams]

SO we should maybe set processing to full and then work in legal scaled then output “legal scaled” setting on more then not for Broadcast at this point?
Does this also clip to legal things like DPX that in the past always output full range data?
CJ

[Stig Olsen]

Maybe this answers some of your questions – https://forums.creativecow.net/readpost/277/10662

[Robin Erard]

Hello,

If we output in Full range the only thing we have to tell to other softwares is to read the file as REC709. In Nuke we just select REC709 to have the good mapping. Am I right ?

Even in FCP the render in Full range is interpreted as REC709.

That’s why I don’t understand when we need to rend in legally ? Is it when we output on tape ?

I’m very sorry with these bascis questions, before this new option everything was clear in my mind, but this new option disturbs my spirit.

Best

Robin

réalisateur, scénariste, monteur, étalonneur
http://www.robinerard.ch

[Tim Farrell]

As Joe says it’s for people who want to render “studio RGB” (scaled) instead of “computer RGB” (full range). (eg: render dpx files and have Data Level set to Normally scaled legal video.)

If rendering to YUV codecs like ProRes 422 or DnxHD it’s not relevant because your renders will always scale to 64-940.

[Peter Chamberlain]

Joseph and Tim are correct. If you have a RGB file type, like DPX, it will usually be in the full range data structure. When you record that full range DPX to tape to make a HD Rec.709 standard video, the DeckLink scales the full range to the video range. Just like the DeckLink does for your Rec.709 monitor.

The new option lets you render the DPX in the video range and this make a HD deliverable without the need to go to tape.

Consider now that on the input side, you have some DPX files in full and some in video range. The clip by clip selection allows you to scale the video range DPX up to the full range used in the Resolve processing and to match all the other files.

The YUV formats are generally in video range and so you may not have considered the above scenarios before as you would not have seen this workflow.

These new features in 8.1 are to give you more flexibility if you need it, but should not change your normal operation if you don’t need them.
Peter

[Stig Olsen]

But, make sure you dont switch the full range vs normal range in the middle of a project, because it influence how you “see” the image on your timeline.

If you want to read 64-940 on your internal scoop, simply add a soft clip lut set to 64-940 on the timeline track. But then, make sure its set to full range for not doubling the effect.

For the Avid workflow…
Resolve works as it should, just render to YUV and the scaling are correct, no matter if you work 0-1023.
The problem is with Avid. Mediacomposer is not a finishing tool, and there is no way to have Avid to read the files correctly when imported back the regular way or with AMA.
Even though the YUV files from Resolve is scaled to legal, Avid will wash out the black levels and increase the highlights. Its just the way it works. The new major Avid-upgrade that is soon comming has not taken this seriosly, so if you want it to look the same in Avid as in Resolve – there is no way as it is today.