Track Matte Mask Conundrum

[Spiketrain]

Hi!

This one's stumped me a bit....

Track matte masks should be easy right?

Well watch this video and see me fail!

Anyone got a clue as to what I'm not doing properly?

Help!

Sx

[R Neil Haugen]

Change the Composite mode to Luma ... see if that works.

Neil

[Spiketrain]

Thanks for the tip Neil!

Tried it... didn't work....

It's definately an alpha channel requirement here

And to be clear, I tried the PNG option on the video I made AFTER I'd already created a colour matte track above the image and masked it to the correct outline - so I make that two different ways of representing a shape with an alpha channel that the track matte mask should have adhered to...

So yeah... still stumped... and this isn't the first time I've been through this - the first time it happened I just gave up!

[Spiketrain]

Guys!

I cracked it!

It's a pretty complicated process of course.

I'll do another video and show (those who care) how it's done.

In short... . IE spoiler before I do a video.... The reason I think it didn't work was because I'm using a multicam track which is a bit 'squiffy' sometimes with stuff like this. So the fix is to nest the track with something else... then to track matte that.

It's really exciting!..... if you're a bit of a geek like me that is. Not seen it done anywhere else.

[Spiketrain · Accepted solution]

Here's the video I promised of the process - hopefully clear enough.

Any confusions from here for anyone... then do let me know, I've fallen in most of the pitfalls on this one by now surely! - so my learnings might be useful for someone else.

I include some of the background as to why I choose multicam. I have a friend that also does these videos - and he had not been using multicam, as a result, he had some colour grading and synching issues further down the line.... so I have no interest in trying to manage multiple tracks on a timeline without first timing them up in multicam. The only problem I experienced is that, when you do this, track mattes don't work (amongst other anomolies). But by creating a multicam track in a nested sequence, you can overcome!

All the best!