POV-Ray : Newsgroups : povray.binaries.images : Problem with +UA option (Alpha rendering) : Re: Problem with +UA option (Alpha rendering) Server Time
6 Aug 2024 16:58:45 EDT (-0400)
  Re: Problem with +UA option (Alpha rendering)  
From: "Jérôme M. Berger"
Date: 14 Feb 2007 14:36:40
Message: <45d364c8@news.povray.org>
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EagleSun wrote:
> "Slime" <fak### [at] emailaddress> wrote:
>>> Very strange you don't see a problem.... I see a THICK BLUE circle around
>>> the earth on the version I created with the "+UA" option.  When I tried
>>> converting it to PPM format, the THICK BLUE circle was included.
>> If you take the +UA version and put it on a black background in Photoshop,
>> it's nearly identical to the original (some pixels around the edge are off
>> by a very slight amount (7 or 8 out of 255), which might be caused by how
>> POV-Ray handles transparency on emissive media).
> 
> Hmm... I have GIMP... perhaps you can show me how in GIMP?  (I don't have
> Photoshop.)
> 
	Create a new image with the same dimensions. Fill it with black.
Open your alpha image, select everything (Ctrl-A), copy it and paste
it on the black image...

		Jerome
- --
+------------------------- Jerome M. BERGER ---------------------+
|    mailto:jeb### [at] freefr      | ICQ:    238062172            |
|    http://jeberger.free.fr/     | Jabber: jeb### [at] jabberfr   |
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