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3D layers, shadows, and track mattes.

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Justin Ross3D layers, shadows, and track mattes.
by on Feb 20, 2010 at 8:56:49 pm

Okay, so, for the time being I've figured out a workaround, but for the sake of my understanding, I figured I'd post here anyway.

Now, I'm still learning After Effects, and ran into the following problem on a project. I've googled my brains out, and dug through posts here, but didn't find anything specific to my problem, and didn't really know what to search for that would lead me to the information that would explain my problem.


Here goes:

I've got the following layers:




Which produce this when the gray solid is on:




And this when the gray solid is off:



which is what I'm trying to accomplish, except for the fact that I can't seem to get the text shadow to show up.

I assumed the shadow cast upon the gray solid by the text would factor into the black solid's luma matte, but it doesn't seem to, and I'm not sure I understand why.



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Joey ForemanRe: 3D layers, shadows, and track mattes.
by on Feb 20, 2010 at 10:41:12 pm

Is the black solid's 3d switch enabled?


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Justin RossRe: 3D layers, shadows, and track mattes.
by on Feb 20, 2010 at 10:42:41 pm

Yup. Gray Solid, Black Solid, and Text layers are all 3D layers.


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Joey ForemanRe: 3D layers, shadows, and track mattes.
by on Feb 20, 2010 at 10:44:38 pm

And if it is, is Accepts Shadows enabled in its Material Options?


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Justin RossRe: 3D layers, shadows, and track mattes.
by on Feb 20, 2010 at 10:48:20 pm

Sure is.



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Justin RossRe: 3D layers, shadows, and track mattes.
by on Feb 20, 2010 at 11:20:11 pm

Heck, here's the project. Only issue you'll probably run into is not having the font I'm using (NeutraFace).

http://ownedgear.com/shared/SoonToBeWed.aep


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Joey ForemanRe: 3D layers, shadows, and track mattes.
by on Feb 21, 2010 at 6:01:52 am

It seems the base layer in a luma matte must have a brightness value higher than pure black in order to receive a shadow - visibly, at least. Not sure that theory is sound on all levels, but this seems to work:

Try bringing up the luma level of your solid in Solid Settings by shifting the color up in brightness a tad.

The shadows will show up. They may be hard to see against transparency, but put in a solid below and you'll see them.


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Joey ForemanRe: 3D layers, shadows, and track mattes.
by on Feb 21, 2010 at 6:11:21 am

What I mean is they will darken as the base layer's brightness is raised.


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Justin RossRe: 3D layers, shadows, and track mattes.
by on Feb 21, 2010 at 11:05:53 pm

Very interesting.

Thanks for the info! Glad I posted this. :)


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