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PI project won't generate alpha

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Eric Goldstein
PI project won't generate alpha
on Jun 26, 2006 at 6:55:00 pm

Hi,

I've created a PI project. I'm rendering it as Quicktime uncompressed (none), Millions of Colors +. I've checked "Save Alpha" and "Create non-intense alpha."

I've trided ths over and over and have checked my settings, but I continue to get a file with no alpha.

I'm able to render other PI projects with an alpha.

Does anyone have any suggestions?

Thanks,

Eric


Eric Goldstein
Giraffe Film Company
Los Angeles
eric@giraffefilm.com


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Alan Lorence
Re: PI project won't generate alpha
on Jun 26, 2006 at 7:43:52 pm

By "no alpha" do you mean that it's a 24-bit (instead of 32-bit) file, or that the alpha channel is "empty" (all black)?

Remember that when "create non-intense alpha" is checked, any "intense" particles are not included in the alpha channel.




Alan.
wondertouch


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Eric Goldstein
Re: PI project won't generate alpha
on Jun 27, 2006 at 12:07:10 am

Hi Alan,

I'm rendering a 32 bit file. I mean that the alpha channel is blank. When I choose "view alpha" in the View menu, I see an alpha channel. After rendering and finding the alpha channel blank (after checking it in After Effects), I choose view alpha in PI and the alpha image is no longer there.

Thanks,

Eric


Eric Goldstein
Giraffe Film Company
Los Angeles
eric@giraffefilm.com


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Eric Goldstein
Re: PI project won't generate alpha
on Jun 27, 2006 at 12:09:54 am

Ah, oops...

You're right, I just tried it without selecting ignore intense... I assumed there would be some areas that were not intense. I was wrong. After not selecting ignore intense, my alpha channel was there.

Thanks for your help,

Eric


Eric Goldstein
Giraffe Film Company
Los Angeles
eric@giraffefilm.com


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