POV-Ray : Newsgroups : povray.binaries.images : Torus/Camera Angle Bug??? <15k jpg> Server Time: 25 Sep 2017 15:08:51 GMT
  Torus/Camera Angle Bug??? <15k jpg> (Message 1 to 5 of 5)  
From: Eric Freeman
Subject: Torus/Camera Angle Bug??? <15k jpg>
Date: 20 May 2000 18:09:10
Message: <3926d4c6@news.povray.org>
See source code in povray.bugreports

Eric
--------------------
http://www.datasync.com/~ericfree
--------------------
"I don't like it, and I'm sorry I ever had anything to do with it."
- Erwin Schrodinger talking about Quantum Mechanics.


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From: Tor Olav Kristensen
Subject: Re: Torus/Camera Angle Bug??? <15k jpg>
Date: 20 May 2000 20:22:47
Message: <3926F358.2E82E041@hotmail.com>
I really like the lower right torus.

If that is a bug, then don't fix it !

Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


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From: Peter Popov
Subject: Re: Torus/Camera Angle Bug??? <15k jpg>
Date: 21 May 2000 07:56:49
Message: <hc5fisksrd63ojiouqk6luivf6ep31igsr@4ax.com>
On Sat, 20 May 2000 13:07:39 -0500, "Eric Freeman"
<eri### [at] datasynccom> wrote:

>See source code in povray.bugreports

povray.bugreports is a moderated group so your post won't show up
there unless it's a confirmed bug. Please repost your source in one of
the scene files groups.

With a camera angle of 1, the camera must be quite far from the
object. This may cause accuracy problems with complex shapes. Have you
tried any of the following?

1) a quartic torus (in shapesq.inc, I think)
2) an isosurface torus
3) sturm


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


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From: Eric Freeman
Subject: Re: Torus/Camera Angle Bug??? <15k jpg>
Date: 21 May 2000 15:48:25
Message: <39280549@news.povray.org>
"Peter Popov" <pet### [at] usanet> wrote in message
news:hc5fisksrd63ojiouqk6luivf6ep31igsr@4ax.com...
>
> povray.bugreports is a moderated group so your
> post won't show up there unless it's a confirmed
> bug. Please repost your source in one of the
> scene files groups.

I just got an email from the moderator explaining how the bugreports group
works.  I'll post the code and a description of the problem in
povray.general.

> With a camera angle of 1, the camera must be quite
> far from the object.

Yes.

> This may cause accuracy problems with complex
> shapes. Have you tried any of the following?
>
> 1) a quartic torus (in shapesq.inc, I think)

No.

> 2) an isosurface torus

No, but if it's a bug in the program, that won't fix it.

> 3) sturm

Yes.

Eric
--------------------
http://www.datasync.com/~ericfree
--------------------
"I don't like it, and I'm sorry I ever had anything to do with it."
- Erwin Schrodinger talking about Quantum Mechanics.


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From: Chris Huff
Subject: Re: Torus/Camera Angle Bug??? <15k jpg>
Date: 21 May 2000 20:44:48
Message: <chrishuff_99-1D4478.15482621052000@news.povray.org>
In article <39280549@news.povray.org>, "Eric Freeman" 
<eri### [at] datasynccom> wrote:

> I just got an email from the moderator explaining how the bugreports group
> works.  I'll post the code and a description of the problem in
> povray.general.

Actually, povray.text.scene-files would probably be a better group for 
the source code.


> > With a camera angle of 1, the camera must be quite
> > far from the object.
> 
> Yes.

How far?(I haven't looked at the code yet, sorry)


> > 2) an isosurface torus
> 
> No, but if it's a bug in the program, that won't fix it.

Actually, it easily could fix it(or work around it, at least). 
Isosurfaces (and isoblobs) have a completely different solving method 
from all the other objects.

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/


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