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export alpha with trapcode particular

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Bart
export alpha with trapcode particular
by
on Feb 12, 2007 at 9:09:50 pm

I used the particular plugin for creating a writing effect. I need to place this together with a 3D character in one scene. Therefor i need to export the imagesequence with an alpha of the particular effect. Is this possible and if so, how ?


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Mylenium
Re: export alpha with trapcode particular
on Feb 13, 2007 at 6:37:38 am

Assuming you are working in AE, check RGB+Alpha in the output module on the render queue and choose a format that supports Alpha channels (PSD, TIFF, Targa etc.). Particular itself calculates proper Alpha inside the comp (which you can see if you enable the transparency checkerboard in the comp window).

Mylenium

[Pour Myl


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Bart
Re: export alpha with trapcode particular
by
on Feb 13, 2007 at 9:26:47 am

Thnx. I now know what the problem was. I had a solid background that covered the alpha of the particular. Problem is when I remove the BG I lose the color of the effect, it becomes white. Do you know what could solve this ?


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Mylenium
Re: export alpha with trapcode particular
on Feb 13, 2007 at 11:04:13 am

Pre-compose your stuff, then put the pre-comp in another comp and use an unmultiply plugin such as XMult, Knoll Unmult or whatever. You may also try to use a duplicate of your pre-comp as a luma matte on the other comp.

Mylenium

[Pour Myl


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Bart
Re: export alpha with trapcode particular
by
on Feb 13, 2007 at 6:57:03 pm

Thanks a lot Mylenium. Works like a charme!


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