POV-Ray : Newsgroups : povray.newusers : Fade, change opacity, etc., how? : Re: Fade, change opacity, etc., how? Server Time
28 Jul 2024 16:15:21 EDT (-0400)
  Re: Fade, change opacity, etc., how?  
From: Jan Dvorak
Date: 18 Jun 2008 02:21:24
Message: <4858a964@news.povray.org>
this is me napsal(a):
> Just like at the beginning of a movie, I've created a reflective Warner Brothers
> - like crest that I rotate and twist as it flies away from the camera to finally
> land in a stationary position.  I've mapped an image onto a thin 'screen' behind
> the camera that reflects off the crest, and the whole effect comes off looking
> pretty good from beginning to end.  What I don't know how to do, however, is
> make the image fade once the crest comes to rest.  I don't want to just blank
> it out - I know how to do that - and it looks pretty bad.  It's a PNG image
> that I'm using, so is there any way to take advantage of alpha or something
> like that?  I suppose the brute force method would be to make an image sequence
> that fades, and then use those, but I was hoping to avoid this approach.
> Anyway, any help would be greatly appreciated.
> 
> -T.I.M.
> 
> 
My idea is to use an average of the image and pigment{Clear} with 
weights set by the clock.


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