"simple" masking (V7)

mel58i wrote on 11/27/2007, 12:28 PM
What I'm trying to do is this:-
Split a still horizontally across the centre, then moving both halves (using track motion) to the left and right respectivley off the screen, then keyframe for them to join at the middle.
No probs moving or keyframing - but tried setting up a mask, b/w horizontal (from med gens) and putting that on track 1, with copies of the still on tracks 2 and 3. Set tracks 1 and 2 as parent/child in mask mode and set event fx to "mask gen".
When I moved tracks 2,3 slightly off screen, track 1 showed half the still (correct), but track 2 was full still.
Perhaps I got it wrong about masking, thinking that one half of the mask should show track 1 and the other half track 2.
Ok, can acheive the results by the same mask on tracks 1 and 3 and the still on tracks 2 and 4, inverting one of the masks in event fx.
Is there an easier way on acheiving this - I find parent/child - masking and compositing a real headache.

thanks Mel

Comments

JohnnyRoy wrote on 11/27/2007, 12:33 PM
You could try using the built-in Mask that's in Pan/Crop. Since this is at the Event level it will move correctly with the event.

~jr
bStro wrote on 11/27/2007, 12:48 PM
Assuming I understand what you're going for here: forget masks, parent/child relationships, and all that jazz. Just fade your image in / out / whatever and apply a Barn Door transition. Adjust the length and settings so that it opens and closes however you want for however long you want.

If you need more control (say you want it to slow down or speed up, or change direction), insert a transition progress envelope.

Rob
mel58i wrote on 11/28/2007, 4:45 AM
Just to make the explanation easier to follow, look at the example shown in the link. Which way would you do it?

www.members.aol.com/mel58i/test.wmv

Mel
dcrandall wrote on 11/28/2007, 9:06 AM
Hi Mel,

If you supply me with an email address I'll be happy to send you a "VEG" file with examples of a couple of ways to do this effect.

-Dan
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