Margus Voll

BL and aces pushing hard

Recommended Posts

Hi.

I wonder if you see ever material breaking up while using aces?

What i mean is if shadow gets rather deep i get insane snow of super saturated pixels like noise in another platform.
So i wonder if BL does the same thing or if it is handled better?

My assumption is that non aces tools do not do that because of the clever math.

Link to comment
Share on other sites

@Margus: Are you using ACEScc or ACEScct as a working space? ACEScc might make noise in under-exposed shots a lot more visible, because it increases the contrast in the blacks if you push up a shot heavily. Curves like ACEScct, T-Log, LogC, etc. avoid that by using a toe in the shadows and are better suited as working space.

The out of gamut colours that Jussi mention need to be dealt with accordingly. The T-Log / E-Gamut working colour space is optimised for typical out of gamut colours of current cameras. Alternatively working with the native primaries of the main camera sources (LogC / WideGamut, 3G10Log / REDWideGamutRGB, S-Log3 / S-Gamut3.cine, V-Log / V-Gamut, etc.) might avoid them on input side. But when you are running into out of gamut artefacts on the output side (e.g. in the RRT) during grading you need a tool to deal with that.

In Baselight we have the CompressGamut tool which deals with out of gamut problems in both cases. It gently moves colours back into a target gamut without affecting the overall look. And it can bring back even negative code values, so it also works nicely in smaller working gamuts like AP1. 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.