POV-Ray : Newsgroups : povray.beta-test : error when writing jpeg format (linux build) : Re: error when writing jpeg format (linux build) Server Time
30 Jun 2024 12:55:12 EDT (-0400)
  Re: error when writing jpeg format (linux build)  
From: Jim Holsenback
Date: 8 Aug 2010 06:38:34
Message: <4c5e892a$1@news.povray.org>
On 08/08/2010 03:16 AM, Le_Forgeron wrote:
> Le 08/08/2010 07:47, Le_Forgeron nous fit lire :
> 
>>> i was going to give it a day or too and see if anyone
>>> had even attempted ANY beta build using v8b. it seems to me that subject
>>> was briefly mentioned in another thread before ... but darned if i can
>>> find it.
>>
>> I'm going to try to install manually 8b and then re-configure&compile
>> povray to see. More on that later.
> 
> Done, configure with --with-libjpeg=/usr/local/lib (by default,
> configure would fine 8b but the linker option for povray would omit
> -L/usr/local/lib, which result in aborted render when used with +fj due
> to a mismatch: expecting libjpeg 80, 62 found... so adding the option to
> configure really helps)

thanks ... good info

> 
> Render with new version (8b) is ok for +fj +ua (but image remains as
> previously: no checkered alpha displayed in my visualisation programs
> (imagemagick display & eye of gnome) on ubuntu 10.4 amd64 from source.
> (beta38 level). +fn is ok on that aspect of alpha.

maybe you missed (or perhaps i didn't communicate clearly) +fj +ua
(since beta38) will generate a warning as jpeg DOESN'T support alpha channel

> 
> It might very well be a 32 bit specific issue for 8b.

I'll try on my system today if I don't get sidetracked.

> 
> P.S.: the data information on image 8b & 62 are identicals, should I had
> expected any difference ?

Nope


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