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masking an effect with an image

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Steve George
masking an effect with an image
on Jun 19, 2019 at 1:12:53 pm

Hi,

I'm a complete beginner, I wanted to add an effect called Trapcode Starglow to an image sequence of some diamonds rendered out of Maya, but have it only on the diamonds and not any other objects in the scene. I can render out a black and white mask, but I'm having difficulty working out how to apply the mask to limit the effect.

thank you

diamondmask2.jpg


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Richard Garabedain
Re: masking an effect with an image
on Jun 19, 2019 at 8:16:11 pm

you rendered the diamonds right? just render them by themselves without a background and there is your alpha matte...or luma matte either way


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Cassius Marques
Re: masking an effect with an image
on Jun 19, 2019 at 9:09:29 pm

Your Timeline should be:

#layer1 : A pre-comp of: (apply Starglow to this pre-composition)
#1: Luma sequence
#2: Beauty sequence (with track matte set to luma)
#layer2: Beauty sequence's copy

Cassius Marques
http://www.zapfilmes.com


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Steve George
Re: masking an effect with an image
on Jun 19, 2019 at 9:46:34 pm

That worked perfectly. Thank you for your help


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