making a hole transparent

[Graham Quince]

Hi Heather

I think I understand – you have a rendered animation and want video to appear within it. You’ve already cut a mask and dropped the video behind the animation, but the mask is circular and there’s a part of the animation you want visible in front of the video.

You could either:

– add a second mask using the pen tool and draw around the animation element, set the mask to intersect (i think)

– or if there’s a lot of movement, duplicate the background layer, reverse the mask and then use a key or some description to isolate the element you want to keep

Hope that helps

Graham

[Heather Crank]

Thanks Graham,

Great idea! I’ll try that now!

Thank you soooo much!

Heather

[Kevin Camp]

right now you have the whole thing composited with a ‘place holder’ video in place. hiding the place holder video won’t help because you have a background behind it, so you need to cut a hole in the background, but leave the foreground….

i would try to precomp all the layers that are behind/under the video that will be replaceable and move all attributes (don’t open new comp).

now select the backgound precomp to use the place holder video as a track matte, inverted alpha. this should knock a hold in the background that is exactly the same as the place holder video, but leave all the foreground in place. you can toggle the checkerboard transparency grid to verify.

now render the graphic with alpha so the client will place video behind/under your graphic.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW

[Heather Crank]

Thanks Moldyboot!

I’ll give that a shot too!

Heather

[Heather Crank]

This worked like a charm!!!!

THANK YOU SOOOOO MUCH! Another crisis averted thanks to the wonderful creative cow community.

You rock Kevin!

H