POV-Ray: Newsgroups: povray.newusers: Why that circles?

POV-Ray : Newsgroups : povray.newusers : Why that circles?		Server Time 6 Nov 2024 17:29:59 EST (-0500)

From: Aldo Colombo
Subject: Why that circles?
Date: 29 Aug 1998 00:24:35
Message: <35E7740A.A90AD0F0@dialup.com.ar>

Hi,
I trace a single sphere (code below, taken from POV tutorial) and I see
circles (i.e. the illumination seems not to be even, or...?). Anyone
know why?
Also: I heard about Texture Magic which might interest me, any further
info?
Thanks,
Al

#include "colors.inc"
camera {
    location <0, 1, -10>
    look_at 0
    angle 36
  }
light_source { <500, 500, -1000> White }
sphere { <0, 0, 0>, 1
    pigment { Red }
    translate 0.5*x
  }

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From: K Tyler
Subject: Re: Why that circles?
Date: 29 Aug 1998 00:30:33
Message: <35E76759.AE282ACF@pacbell.net>

Aldo Colombo wrote:

> Hi,
> I trace a single sphere (code below, taken from POV tutorial) and I see
> circles (i.e. the illumination seems not to be even, or...?). Anyone
> know why?
> Also: I heard about Texture Magic which might interest me, any further
> info?
> Thanks,
> Al
>
> #include "colors.inc"
> camera {
>     location <0, 1, -10>
>     look_at 0
>     angle 36
>   }
> light_source { <500, 500, -1000> White }
> sphere { <0, 0, 0>, 1
>     pigment { Red }
>     translate 0.5*x
>   }

A quick Guess.
  If your screen is set to 256 colors you will see banding.
Try setting to a higher screen resolution. 16 million is the
best of course.

I can't remember which program Texture Magic is so I'm
going to keep quiet for now.

K.Tyler

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From: Aldo Colombo
Subject: Re: Why that circles?
Date: 30 Aug 1998 07:12:12
Message: <35E92513.7FFFB3E2@dialup.com.ar>

Thanks, the circles were gone when I changed to 24 bit color. Now it looks
really fine.
About Texture magic seems to be a program to create your own textures for
POV. Maybe I will try to get it...but still got enough.
Aldo

K. Tyler wrote:

> Aldo Colombo wrote:
>
> > Hi,
> > I trace a single sphere (code below, taken from POV tutorial) and I see
> > circles (i.e. the illumination seems not to be even, or...?). Anyone
> > know why?
> > Also: I heard about Texture Magic which might interest me, any further
> > info?
> > Thanks,
> > Al
> >
> > #include "colors.inc"
> > camera {
> >     location <0, 1, -10>
> >     look_at 0
> >     angle 36
> >   }
> > light_source { <500, 500, -1000> White }
> > sphere { <0, 0, 0>, 1
> >     pigment { Red }
> >     translate 0.5*x
> >   }
>
> A quick Guess.
>   If your screen is set to 256 colors you will see banding.
> Try setting to a higher screen resolution. 16 million is the
> best of course.
>
> I can't remember which program Texture Magic is so I'm
> going to keep quiet for now.
>
> K.Tyler

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