POV-Ray : Newsgroups : povray.general : PNG and Alpha : Re: PNG and Alpha Server Time
20 Nov 2024 02:31:43 EST (-0500)
  Re: PNG and Alpha  
From: Mahalis
Date: 10 Nov 2001 08:00:12
Message: <3bed24dc$1@news.povray.org>
Does IE6 show PNG transparency properly?

--

//Mahalis
camera{location<0,0.25,-2> look_at 0.5*y} #declare T=texture{pigment{crackle
scale 0.5 rotate 90 turbulence 0.75 color_map{[0 rgb 1][0.05 rgb 1][0.1
rgb<1,0.25,1>][0.25 rgbf 1][1 rgbf 1]}} finish{ambient 1}} #declare
c=difference{torus{0.5,0.1 rotate -90*x}box{<0.7,0,0.2>,<-0.7,-0.7,-0.2>}}
merge{object{c translate<0.5,0.5,0>} object{c translate<-0.5,0.5,0>}
cylinder{<1,0.5,0>,<1,0,0>,0.1} cylinder{<-1,0.5,0>,<-1,0,0>,0.1}
cylinder{0.5*y,0,0.1} texture{T}}
--


"Warp" <war### [at] tagpovrayorg> wrote in message
news:3bed1c99@news.povray.org...
> QuadHall <tre### [at] ww-interlinknet> wrote:
> : Recently (I think) there were some postings in one of the povray
newsgroups
> : involving POV produced PNG files (with an alpha channel) and the
internet
> : browsers that properly displayed such images.  One of these postings, if
my
> : questionable memory serves me, had a link to an example web page-->I
think
> : it had a png image of a lit match against some sort of varied background
.
> : Does anyone remember seeing these posts? (and if so, which newsgroup,
date,
> : etc?)  thanks.....
>
>   I think that post was made by me. I don't remember which thread it was,
> though.
>   The page is this one:
>
> http://www.cs.tut.fi/~warp/alphatest.html
>
>   If the browser supports alpha properly, it should look like this:
>
> http://www.cs.tut.fi/~warp/alphatestsnapshot.jpg
>
>   The only browsers I know that support the alpha channel properly are
> Netscape 6.x, Mozilla 0.9.x (which is practically the same thing) and
> Internet Explorer 5.x for MacOS (the Windows version has no proper
support).
>
> --
> #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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