POV-Ray : Newsgroups : povray.beta-test : Alpha output : Re: Alpha output Server Time
30 Jul 2024 12:24:49 EDT (-0400)
  Re: Alpha output  
From: Warp
Date: 3 Nov 2001 07:22:15
Message: <3be3e176@news.povray.org>
Slime <noo### [at] hotmailcom> wrote:
: I think the reason reflection isn't transparent is because if it were, and
: you had the PNG on, say, a web page, the object would appear transparent
: rather than reflective. It would show things behind it when it should show
: reflected things.

  Yes, that's exactly why alpha in reflections doesn't make any sense.

  Also I like a lot the improved alpha channel support. Now I can create
media flames with transparency to a PNG at it will work like a marvel.
  For example I made this alpha channel test page using exactly that:

http://www.cs.tut.fi/~warp/alphatest.html

  If your browser supports transparent PNGs correctly, the page should look
like this:

http://www.cs.tut.fi/~warp/alphatestsnapshot.jpg

  So far I know of just few browsers which have this good alpha channel
support: Netscape 6.x, Mozilla 0.9.x, Internet Explorer 5.x for Macintosh
and perhaps a couple of less-known browsers.
  Note that IE 5.x for Windows does *not* support PNG alpha channel correctly.

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -


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