POV-Ray: Newsgroups: povray.newusers: orthographic is not accurate

POV-Ray : Newsgroups : povray.newusers : orthographic is not accurate		Server Time 28 Nov 2024 17:42:20 EST (-0500)

From: LSC
Subject: orthographic is not accurate
Date: 10 Feb 2000 04:08:36
Message: <38a28014@news.povray.org>

I found that orthographic view in povray is not accurate. When I draw a box,
I get some curve at the edge, and the upper face and the lower face look
unparallel. Is there anyway I can make the image more accurate?

Thanks.

Post a reply to this message

From: Nieminen Juha
Subject: Re: orthographic is not accurate
Date: 10 Feb 2000 04:22:41
Message: <38a28361@news.povray.org>

LSC <lia### [at] pljaringmy> wrote:
: I found that orthographic view in povray is not accurate. When I draw a box,
: I get some curve at the edge, and the upper face and the lower face look
: unparallel. Is there anyway I can make the image more accurate?

  An example scene could help.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

Post a reply to this message

From: Markus Becker
Subject: Re: orthographic is not accurate
Date: 10 Feb 2000 06:36:41
Message: <38A2A310.DF70A413@student.uni-siegen.de>

LSC wrote:
> 
> I found that orthographic view in povray is not accurate. When I draw a box,
> I get some curve at the edge, and the upper face and the lower face look
> unparallel. Is there anyway I can make the image more accurate?

Perhaps your monitor isn't too well adjusted?

;-)

Markus

Post a reply to this message

From: Peter Popov
Subject: Re: orthographic is not accurate
Date: 10 Feb 2000 16:14:52
Message: <Xp6iOALQ+lsydsV0HmSRZHfBkg6G@4ax.com>

On Thu, 10 Feb 2000 17:07:28 +0800, "LSC" <lia### [at] pljaringmy> wrote:

>I found that orthographic view in povray is not accurate. When I draw a box,
>I get some curve at the edge, and the upper face and the lower face look
>unparallel. Is there anyway I can make the image more accurate?
>
>Thanks.

I've never had such problems. I've used the ortho camera for web stuff
like buttons and toolbars and other important tasks and it has proven
itself trustworthy. Are you sure your monitor's geometry (pincushion,
trapezoid, rotation) is calibrated? :)

Peter Popov
pet### [at] usanet
ICQ: 15002700

Post a reply to this message

From: Jon A Cruz
Subject: Re: orthographic is not accurate
Date: 11 Feb 2000 00:49:02
Message: <38A3A30A.6D156E66@geocities.com>

LSC wrote:

> I found that orthographic view in povray is not accurate. When I draw a box,
> I get some curve at the edge, and the upper face and the lower face look
> unparallel. Is there anyway I can make the image more accurate?

Are you sure the lines are not parallel? You mention that they don't 'look'
parallel, but did you actually measure them?

http://web.inter.nl.net/hcc/Hans.Kuiper/optical1.htm
http://web.inter.nl.net/hcc/Hans.Kuiper/optical7.htm
http://web.inter.nl.net/hcc/Hans.Kuiper/optical4.htm

A sample source and image would help.

--
"My new computer's got the clocks, it rocks
But it was obsolete before I opened the box" - W.A.Y.

Post a reply to this message