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Removing Black Background

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Brian Rohde
Removing Black Background
on Sep 21, 2009 at 5:47:46 am

I give up!
I bought the SE version and NO WAY with all the tutes/intsructions/codecs can I get the black backgrounds removed.
Very much not amused.
HELP!

Brian


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Alan Lorence
Re: Removing Black Background
on Sep 21, 2009 at 9:41:22 pm



1) Add any emitter to an new project
2) Click "Save Output" button
3) Choose PNG or TGA output, supply filename
4) Check "Save Alpha" option
5) optional: uncheck "remove black bg from RGB channels"

You can also save as AVI if you use a format that supports alpha (like HuffYUV or Lagarith) and the codec is configured for an alpha channel.

If you've done this, what are you using to view the image or movie? It may be that your viewer or video editor is only showing the RGB channels.


Alan.

http://www.wondertouch.com


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Brian Rohde
Re: Removing Black Background
on Sep 22, 2009 at 12:04:54 am

Thanks Alan

Eventually, I was able to save the sequence of .png images into a QuickTime Movie file for use in other 3D apps.

Clicking the right buttons to get the Lagarith idea for AVI seems beyond me

All the same, very surprised at the complexity of the saving approach to make the results usable.

Brian


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Alan Lorence
Re: Removing Black Background
on Sep 22, 2009 at 12:24:03 pm

What makes it complex, checking the "save alpha" box?

If you're on a Mac just save QuickTime directly from pIllusion, using the Animation compressor set to the highest quality and number of colors.



Alan.

http://www.wondertouch.com


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Brian Rohde
Re: Removing Black Background
on Sep 22, 2009 at 2:01:27 pm

Sorry Alan, it does not remove the black background.

Brian


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Alan Lorence
Re: Removing Black Background
on Sep 22, 2009 at 3:26:38 pm

Depends what you mean -- do you mean "make it show on a checkerboard like in Photoshop"? If so, the problem is not that the image doesn't contain transparency (it does if you check the "save alpha" option), the problem is in the way you view the image.

If you have an image that you created with "save alpha" checked and it does not contain transparency, please send it to me at support at wondertouch dot com.

Alan.

http://www.wondertouch.com


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