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From: Mike Thorn
Subject: Possible HDRI handling bug
Date: 21 Dec 2004 08:50:50
Message: <41c82a3a$1@news.povray.org>
Today while tring out HDRI for the first time with MEGAPOV 1.1, I ran 
across something that I don't think should happen.

Normally it's quite possible to map images onto a sky_sphere, but when I 
tried it with a HDRI image (using image_map, just as shown in the 
documentation), MEGAPOV crashed every single time.

sky_sphere {
   pigment {
     image_map {
       hdr "HDRI/kitchen_probe.hdr "
       once
       map_type 1
     }
   }
}

Using map_type 7 did not effect the outcome either. I can provide the 
rest of the file as well if necessary, but it rendered perfectly just 
before I added the sky_sphere HDRI (see "Star Wars Battle Droid" in p.b.i)

Changing the code to use a finite sphere fixed the problem. I'm running 
MEGAPOV 1.1 on WinXP SP1 using a fresh download of the kitchen probe.

~Mike


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From: Christoph Hormann
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 09:10:01
Message: <cq9ak8$fru$1@chho.imagico.de>
Mike Thorn wrote:
> 
> sky_sphere {
>   pigment {
>     image_map {
>       hdr "HDRI/kitchen_probe.hdr "
                                    ^

unless you have a space at the end of your file name this is wrong.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 23 Sep. 2004 _____./\/^>_*_<^\/\.______


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From: Mike Thorn
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 10:02:51
Message: <41c83b1b$1@news.povray.org>
Christoph Hormann wrote:
> unless you have a space at the end of your file name this is wrong.

Sheesh.

I wouldn't have expected it to crash because of that. I guess that's 
what I get for not proofing better.

~Mike


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From: Warp
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 12:10:06
Message: <41c858ee@news.povray.org>
Mike Thorn <mik### [at] realitycheckmultimediacom> wrote:
> I wouldn't have expected it to crash because of that. I guess that's 
> what I get for not proofing better.

  What do you mean by "crash"? If it just gives an error message, that's
not crashing.
  If it, however, truely crashes (ie. the OS gives you something like
"this program has performed an illegal operation" or "segmentation fault"),
then that's a bug which should be reported.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -


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From: Christoph Hormann
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 12:55:02
Message: <cq9o1a$o84$1@chho.imagico.de>
Warp wrote:
> 
>   What do you mean by "crash"? If it just gives an error message, that's
> not crashing.
>   If it, however, truely crashes (ie. the OS gives you something like
> "this program has performed an illegal operation" or "segmentation fault"),
> then that's a bug which should be reported.

It crashes and i assume the reason is the .hdr extension is not listed 
in gPOV_File_Extensions and Locate_Filename() can't cope with this.  But 
it should be obvious why this has never been a problem in the past 
(since it is quite rare you specify the wrong file name).

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 23 Sep. 2004 _____./\/^>_*_<^\/\.______


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From: Nicolas Calimet
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 14:03:38
Message: <41c8738a@news.povray.org>
> (since it is quite rare you specify the wrong file name).

	Bad, bad to assume things are not likely to happen  ;-)

	- NC


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From: Thorsten Froehlich
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 14:54:42
Message: <41c87f82$1@news.povray.org>
In article <cq9o1a$o84$1@chho.imagico.de> , Christoph Hormann 
<chr### [at] gmxde>  wrote:

> It crashes and i assume the reason is the .hdr extension is not listed
> in gPOV_File_Extensions and Locate_Filename() can't cope with this.

Sorry, but this is nonsense.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org


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From: Mike Thorn
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 17:05:17
Message: <41c89e1d@news.povray.org>
Thorsten Froehlich wrote:
> Sorry, but this is nonsense.
> 
>     Thorsten

But of course you can't be bothered to explain why?! :(

It is quite unconstructive to criticize someone's statement without at 
the very least explaining why you believe it to be so.

~Mike


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From: Christoph Hormann
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 17:50:02
Message: <cqa94a$4oc$1@chho.imagico.de>
Thorsten Froehlich wrote:
> 
>>It crashes and i assume the reason is the .hdr extension is not listed
>>in gPOV_File_Extensions and Locate_Filename() can't cope with this.
> 
> 
> Sorry, but this is nonsense.

It might be a good idea not to say nonsense if you don't have a better 
explanation and did not look at the code.  Adding

  ,{{ ".hdr",  ".HDR",  "",      ""      }}  // POV_File_Image_HDR

in fileinputoutput.cpp solves the problem - you get the expected

Parse Error: Error opening HDR image.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 23 Sep. 2004 _____./\/^>_*_<^\/\.______


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From: Thorsten Froehlich
Subject: Re: Possible HDRI handling bug
Date: 21 Dec 2004 17:57:48
Message: <41c8aa6c$1@news.povray.org>
In article <41c89e1d@news.povray.org> , Mike Thorn 
<mik### [at] realitycheckmultimediacom>  wrote:

> But of course you can't be bothered to explain why?! :(

No, not here.  But there are places you cannot see (but Christoph and I
can).

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org


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