POV-Ray : Newsgroups : povray.binaries.images : sor bug : Re: sor bug Server Time
4 Oct 2024 09:16:01 EDT (-0400)
  Re: sor bug  
From: Ronald Lembcke
Date: 8 Apr 1999 17:45:40
Message: <370d1574.0@news.povray.org>
> What version/platform do you have there?
Hasn't changed since my first mail ;-)

| I use Linux (Kernel 2.2.5-ac1), AMD K6-2-350
| self compiled Povray version 3.1e (tried with and without uvpatch)
| 
| I've also tried an inofficial version of I've compiled 3.1 and the bug
| didn't seem to be present...


> I just rendered my sordemo.pov file using POV-Ray for Windows 3.02 (I
> also have 3.1e though no sordemo.pov with that one) and it rendered it
> open without the 'open' keyword. Then using 3.1e it renders the same sor
> as closed, so you are correct sir!

Yes... but there's still something strange going on in 3.1e

A mail from Alan Kong in  povray.announce.frequently-asked-questions
(Subject: Here are the changes between public POV-Ray 3.1 and 3.1e)
says

| 3.1a               9/29/98 Chris Young
| Fixed problem with sor and lathe affecting unix and amiga

Maybe this fix introduced another problem (I don't know the original one)

I've modified the sordemo scene a little bit... (camera and sor)
I'll attach images rendered with 3.02 (the version from the Debian Linux
package) an inofficial version of 3.1 and the version of 3.1e I've compiled.

The wierd thing is the shadow of the image rendered with 3.1e
The shadows of 3.02 and 3.1 are correct... well... one sor is open
the other one is closed... but the shadows are ok in respect to this.

But in 3.1e there's a half-shadow... similar to the half existing cap
in my previous posts.


modified version of sordemo.pov:


#include "colors.inc"
#include "golds.inc"
 
global_settings { assumed_gamma 2.2 }

camera {
  location <5, 9, -10>
  look_at <0, 5, 0>
  angle 45
}

background { color rgb<0.2, 0.4, 0.8>  }

light_source { <100, 100, -100> color rgb 1 }

plane { y, 0
  pigment { checker color Red, color Green scale 10 }
}

sor {
  4,
  <0.5,   4.0>,
  <1.0,   5.0>,
  <3.0,  6.0>,
  <4.0,  7.0>
  texture { T_Gold_1B }
}


--
Ronald Lembcke
es1### [at] fenbaynetde


Post a reply to this message


Attachments:
Download 'sor_302pvm_deb.gif' (6 KB) Download 'sor_31.gif' (4 KB) Download 'sor_31e.gif' (4 KB)

Preview of image 'sor_302pvm_deb.gif'
sor_302pvm_deb.gif

Preview of image 'sor_31.gif'
sor_31.gif

Preview of image 'sor_31e.gif'
sor_31e.gif


 

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.