Subject:
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Re: POV-Ray and transperancy
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Newsgroups:
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lugnet.cad
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Date:
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Sat, 6 Sep 2003 21:15:32 GMT
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Viewed:
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529 times
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> I haven't used POV with alpha channels, but if it supports writing them into the
> transparency channel of a PNG file, then Photoshop should natively import this
> into its own transparency channel, and you should be able to simply add the
> background as a layer behind the main layer.
Yeah. I wrote the webpage because I needed an alpha channel. Mainly, Mac OS
X's window server uses alpha channels to calculate transparencies, so if I
wanted to add a background to the image, but not the entire image, I had to use
alpha channels.
That way I can have a cool lego icon with a custom background that only covers
part of the model. Any transperant lego bricks remain transparent.
See this image (the icon for L3P Launcher):
http://www.cc.utah.edu/~jer29950/images/l3p_launcher_icon.jpg
I don't know if I can take the transparency in a png and create an alpha channel
from it. If it is possible, I should just use that method since it would
probably be easier.
James
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Message has 1 Reply:
 | | Re: POV-Ray and transperancy
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| (...) Well, the transparency in PNG files really is just an alpha channel. It might not be called that, but it's 8 bit just like your standard alpha channel in TIFF and others. For whatever reason, Photoshop treats it as transparency while treating (...) (21 years ago, 7-Sep-03, to lugnet.cad)
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Message is in Reply To:
| | Re: POV-Ray and transperancy
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| (...) transparency channel of a PNG file, then Photoshop should natively import this into its own transparency channel, and you should be able to simply add the background as a layer behind the main layer. For an example, download the following (...) (21 years ago, 6-Sep-03, to lugnet.cad)
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