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For a given track: Key Grade vs Grade?

Posted: Mon, 9th Nov 2009, 12:35pm

Post 1 of 4

lingyai

Force: 400 | Joined: 17th Oct 2009 | Posts: 22

CompositeLab Pro User

Gold Member

Hi there,

I'm a bit unclear as the point of using the Key Grade object for a given track, as the manual says that "Any alterations made using the key grading filters will NOT affect the final composite, which will retain the original colors and appearance."

Also, as the Grade objects DO affect the final composite, and offer all the filters listed under Key Grade and many more, it would seem like a no-brainer to just use the Grade objects, yes? Or am I missing something?
Posted: Mon, 9th Nov 2009, 12:49pm

Post 2 of 4

Sollthar

Force: 13360 | Joined: 30th Oct 2001 | Posts: 6094

VisionLab User VideoWrap User PhotoKey 2 Pro User FXhome Movie Maker Windows User MacOS User

SuperUser

You're missing something. smile

The point is that, say, you have a shot with a badly light greenscreen. Hence the color information of said green isn't very strong and creates edges when keyed. So you want to simply increase the color information of that green, but without ending up with an actor who's bright yellow. You want a filter that affects the image so you can get a smoother key, but without affecting the image actually after keying.

That's where the, rather vital, difference is.

Key Grade filters affect images so you get a solid key, but they don't actually affect the output at the end other then the resulting alpha mask.

Grade filters actually grade your image and therefore the output.
Posted: Mon, 9th Nov 2009, 1:09pm

Post 3 of 4

lingyai

Force: 400 | Joined: 17th Oct 2009 | Posts: 22

CompositeLab Pro User

Gold Member

What's wrong with bright yellow actors? What are you, some kind of racist?

Just kidding of course.... Thanks for your answer. I figured I must have been missing something.

So, to clarify -- Key Grading is a tool which has no direct effect on the ultimate clip, but is like a pair of specialist glasses to wear which allow you to make a better choice of which Keying object / settings to use to obtain an outcome which does directly effect the ultimate clip, yes?

(Please say yes)
Posted: Mon, 9th Nov 2009, 1:10pm

Post 4 of 4

Sollthar

Force: 13360 | Joined: 30th Oct 2001 | Posts: 6094

VisionLab User VideoWrap User PhotoKey 2 Pro User FXhome Movie Maker Windows User MacOS User

SuperUser

Yes. smile