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Precomped Stroke Effect not showing up final comp

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Nathan Halder
Precomped Stroke Effect not showing up final comp
on Dec 2, 2014 at 6:58:14 pm

I'm having some trouble seeing my comp with a stroke effect (Production Premium CS5.5) so I'm hoping someone can help out . . .

I watched the Aharon Rabinowitz tutorial on masking a signature and applying the stroke effects to it. Each stroke of the signature is set to Paint Style: On Transparent.

I then precomped that so I could speed up the stroke on effect using the time remapping. If I RAM preview this comp I can see it.

Then I took that precomp and put it in a final comp with other graphics. That precomp is on the top layer. I can see the layer's bounding box when I select the layer but I cannot see the stroke effect/signature on. Also, all I can see is the precomp background color.

If I render it Lossless with Alpha, then import that movie back into AE, I can see the effect I want with all the other layers behind it. Problem solved? More of a workaround with a 4GB :30 rendered comp.

Thanks for any help.


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Dave LaRonde
Re: Precomped Stroke Effect not showing up final comp
on Dec 2, 2014 at 7:45:48 pm

I'm not sure what a "4GB :30 rendered comp" would be. That's a new one.

A file size of 4GB for 30 seconds of video is pretty darn big.
An AE project file that's 4GB is monster huge!
A computer running AE with 4GB of memory is underpowered.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Nathan Halder
Re: Precomped Stroke Effect not showing up final comp
on Dec 3, 2014 at 7:18:19 am

Dave, sorry for the confusion.

I rendered my signature comp in Lossless AVI with Alpha and the size of the :30 comp is 4.6GB.

Can I use this? Sure. Do I want that taking up space on my media drive? No.

Also, I would like to understand why my prerendered comp of the write on (Stroke) effect does not seem to have an Alpha channel.


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Nathan Halder
Re: Precomped Stroke Effect not showing up final comp
on Dec 3, 2014 at 7:35:14 am

Here's an update. If I render my final comp in AE, the Stroke on effect is rendered.

If I use RAM preview or drag the pointer through the comp, it doesn't show up.

The obvious problem here is not being able to check size, positioning, effects before rendering.


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Dave LaRonde
Re: Precomped Stroke Effect not showing up final comp
on Dec 3, 2014 at 8:23:29 pm

If it were my project, I'd probably do a prerender of the animation. I'd use the AE Render Queue withe the Output Module set to make a quicktime movie in either the PNG or animation codecs, RGB+Alpha, Millions (or perhaps Trillions) of Colors+, Straight (i.e. not Premultiplied).

Hasn't failed me yet... unless I've done something dumb like prerendering a comp with no transparency in it. It's one of those Homer Simpson "Doh!" moments.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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