POV-Ray : Newsgroups : povray.bugreports : Bad cylinder warp causes crash : Re: Bad cylinder warp causes crash Server Time
15 Jun 2021 09:55:13 EDT (-0400)
  Re: Bad cylinder warp causes crash  
From: green
Date: 1 Dec 2018 08:40:02
Message: <web.5c028de27cc2800d0c6faf90@news.povray.org>
"jr" <cre### [at] gmailcom> wrote:
> hi,
>
> "Bald Eagle" <cre### [at] netscapenet> wrote:
> > I was trying to work out how to create a paneled cylindrical tank, ...
>
> > When done improperly, POV-Ray crashes.
> > A slight change, and it works fine.
> > ...
> > cylinder {Origin, y+<0, TankH, 0> 1
> > scale <TankR, 1, TankR>
> > texture {TankTex}
> > //scale <TankR, 1, TankR> // after is fine
> > }
>
> sort of works for me.  your version renders the cap but no walls (maybe because
> I use a wrong image?), green's version renders cap and solid (blue) wall.
> strange.  v3.8.0-alpha.9945627.unofficial.
>
>
> regards, jr.

i used povray-3.8.0-x.tokenizer.9945666-av627-Win64.  with the non-crashing
versions i show a very dark wall (gray), not my image.  i messed around with it
a little while and concluded i know nothing about 'warp'.  i also do not know
why putting scale before texture would work, or not work.  but recasting the
image_map as map_type 2 (no warp) works (shows the image), but crashes when the
scale is before texture.


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