Compositing Hair and Fur - edge antialiasing problems?

robkar97 · December 15th, 2007

How are you supposed to do a composite with Hair and Fur? I've gone through the online manual and done all sorts of test renderings, but I always end up with dark edges of all hairs, so the compositing looks ugly.

See enclosed image.

Using Render Elements doesn't help.

Rendering hair only and saving as a png with alpha channels doesn't help

Going to Customize > Preferences > Rendering and then turn on Filter Background in the Background Antialiasing group doesn't help.

Changing to various Composite Method under Render Effects doesn't help.

I'm getting desperate! :-)

Both default scanline and mental ray gives me the same result... I would prefer mental ray if possible.

Any ideas?

Cheers Rob

jucaro · December 18th, 2007

IN Photoshop...
click on your hair layer
then in Menu--->Layer-->Matting--Remove White(black) matte

In your case, Remove Black Matte.
Have a nice day

robkar97 · December 18th, 2007

This fixed it right away! Now it looks very nice. You're the man, Juan Carlos! Thanks.

December 15th, 2007	#1 (permalink)
robkar97 Member Join Date: Sep 2007 Location: Goteborg Posts: 88 Name: Robert Karlsson	Compositing Hair and Fur - edge antialiasing problems? How are you supposed to do a composite with Hair and Fur? I've gone through the online manual and done all sorts of test renderings, but I always end up with dark edges of all hairs, so the compositing looks ugly. See enclosed image. Using Render Elements doesn't help. Rendering hair only and saving as a png with alpha channels doesn't help Going to Customize > Preferences > Rendering and then turn on Filter Background in the Background Antialiasing group doesn't help. Changing to various Composite Method under Render Effects doesn't help. I'm getting desperate! :-) Both default scanline and mental ray gives me the same result... I would prefer mental ray if possible. Any ideas? Cheers Rob __________________ architect/visualiser i2 STUDIOS, Sweden http://www.i2studios.com

December 18th, 2007	#2 (permalink)
jucaro Moderator Join Date: Jul 2002 Location: Singapore Age: 32 Posts: 612 Name: Juan Carlos Rosalejos	Re: Compositing Hair and Fur - edge antialiasing problems? IN Photoshop... click on your hair layer then in Menu--->Layer-->Matting--Remove White(black) matte In your case, Remove Black Matte. Have a nice day __________________ MD8 Design Solutions X3MFX Interactive Design Agency DE MAX Design PTE LTD

December 18th, 2007	#3 (permalink)
robkar97 Member Join Date: Sep 2007 Location: Goteborg Posts: 88 Name: Robert Karlsson	Re: Compositing Hair and Fur - edge antialiasing problems? This fixed it right away! Now it looks very nice. You're the man, Juan Carlos! Thanks. __________________ architect/visualiser i2 STUDIOS, Sweden http://www.i2studios.com

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