compositing 101 - if you dont know this it will change your life

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80,795

Updated:

May 23, 2009

Readership Level:

Intermediate

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Maya Versions:

1.x, 2.x, 3.x, 4.x, 5.x, 6.x, 7.x

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windows

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Language:

English

Compositing 101: The Black edge


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The black edge...that faint line of premultiplied colour can be a devil if nobody has ever shown you how to get rid of it.



Here is your frame turtle_0034

click for larger version

Here is your background sea footage:

click for larger version

The problem is this horrible faint black edge that you can't seem to get rid of:




If you are compositing it for animation you need to select premultiplied when you import the frames into After-effects or whatever compositer you use.



If you are using Photoshop then in the Matting sub-menu there is a remove black matting tool found under layer....



If you do want to know where premultiply is in your render....

Maya software render:

click for larger version

Mental Ray render:

click for larger version

then you have happy turtles:





To those wise experienced compositors...take a moment to share some wisdom...there are a million tuts on how to create scenes and precious few to show you how to assemble them properly....


-andrew

www.dotnamestudios.com
andrew@kerr.name

Comments

Dashboard_avatar
Dec 01, 2009
Post id: 9345
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hey thanks man. great info. my renders will no longer cause me pain.thanks a lot.

Dashboard_avatar
Dec 24, 2009
Post id: 9593
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great!

Dashboard_avatar
Feb 02, 2010
Post id: 10042
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Thanks!

Dashboard_avatar
Oct 03, 2010
Post id: 12638
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thank u .it great to see the tutorial.

Dashboard_avatar
Feb 07, 2011
Post id: 13755
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AHHHHHAAAA FINALLY!!

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