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iskanderMellakh

09-11-2009, 03:21 PM

Hi All,

I am working on some pixie dust fx and was hoping someone could help with getting rid of the slight dark edge round the image (with alpha).

I am using Sprites and Maya Hardware to render the scene.

any Ideas?

Thanks

altruizine

09-12-2009, 09:05 PM

You should re-create your sprite images but w/out pre-multiplication. That will take care of that edge. Maya doesn't do well w/ premultiplied images for sprites.

-JF

iskanderMellakh

09-13-2009, 12:42 PM

Hi Jeremy Fernsler,

Thank you for the response. Can you recommend the best way of doing this please. I rendered the sprite images in Maya with an alpha. Would it be best to take those images and re-render them in after effects adding a bit more control over the edges?

This is a quick video showing what I am striving to achieve.

http://devilsangelsanddating.ning.com/video/pixie-dust-demo-2

Thanks Alot
Iskander

altruizine

09-14-2009, 03:27 PM

yeah, i'd probably just unpremult in ae or any other compositing app.

iskanderMellakh

09-14-2009, 05:49 PM

Hi Jeremy Fernsler,

Thanks for the reply - That is what I have ended up doing. Still a slight edge but better than it was before.

Iskander

beaker

09-16-2009, 08:31 AM

Make sure you have the alpha for the sprites when you import them in AE set to "premultiply" instead of the default of "straight"

iskanderMellakh

09-16-2009, 09:50 PM

Hey thanks Deke Kincaid, I will try that on my next version of the sprites.

iskanderMellakh

09-24-2009, 08:47 AM

Thanks Deke Kincaid,

That has seemed to work,

(http://www.youtube.com/watch?v=zTOPdk2WXbQ&feature=player_profilepage)http://devilsangelsanddating.ning.com/video/pixie-dust-demo-3

Thanks Alot.

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