POV-Ray : Newsgroups : povray.programming : [ot] tga 16 gray Server Time
23 Dec 2024 15:14:49 EST (-0500)
  [ot] tga 16 gray (Message 1 to 2 of 2)  
From: Rafal 'Raf256' Maj
Subject: [ot] tga 16 gray
Date: 22 Sep 2002 13:30:09
Message: <Xns9291C6607BBF0raf256com@204.213.191.226>
Hello,
where can I find description of 16 bit gray .tga format ?
Or maybe there is some other format more easy to implement (I want to make 
a little utility for generating landscapes)

-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M


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From: Peter Popov
Subject: Re: [ot] tga 16 gray
Date: 22 Sep 2002 15:04:42
Message: <pr4sou074hmfl1gk3pkoirijud1cgor7n1@4ax.com>
The HF_Gray_16 format POV-Ray uses is just a normal three-channel
(RGB), 8 bit per channel, TGA format. However, the way POV interprets
the data is different. Of the three bytes that form each pixel, the
first two - red and green - are treated as a 16-bit word, and the
third one - blue - is ignored. It's quite simple, actually, so any
code you find that writes TGA files can suit your needs.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg


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