Jim Holsenback <ash### [at] nospamcom> wrote:
> On 04/25/2018 06:38 AM, Jim Holsenback wrote:
> > On 04/24/2018 09:24 PM, green wrote:
> >> linux versions 3.7, 3.8 and uberpov will not write or read EXR file
> >> formats.
> >> trying to write gives a command-line-option error, whereas trying to
> >> read an EXR
> >> gives a more useful
> >>
> >> This unofficial POV-Ray  binary was built without support for the
> >> OpenEXR file
> >> format.  You must either  use an official POV-Ray binary or recompile the
> >> POV-Ray sources on a system  providing you with the OpenEXR library to
> >> make use
> >> of this facility.
> >>   Alternatively, you may use any of the following built-in formats: HDR.
> >> Fatal error in parser: Cannot open file.
> >> Render failed
> >>
> >> how does one do that?
> >>
> >> this is ubuntu 16.04  kernel 4.4.108, the following libraries are
> >> installed;
> >>     libopenexr-dev
> >>     libopenexr22
> >>     openexr
> >> and associated
> >>     libilmbase-dev
> >>     libilmbase12
> >> all of these are version 2.2.0-10ubuntu2
> >>
> >> thank you.
> >>
> >>
> > works fine on my system:
> >
> > POV-Ray 3.8.0-alpha.9322209.unofficial
> >
> > Copyright 1991-2017 Persistence of Vision Raytracer Pty. Ltd.
> > This is free software; see the source for copying conditions.  There is NO
> > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> >
> > Built-in features:
> >    I/O restrictions:          enabled
> >    X Window display:          enabled (using SDL)
> >    Supported image formats:   gif tga iff ppm pgm hdr png jpeg tiff openexr
> >    Unsupported image formats: -
> >
> > Compilation settings:
> >    Build architecture:  x86_64-suse-linux-gnu
> >    Built/Optimized for: x86_64-suse-linux-gnu (using -march=native)
> >    Compiler vendor:     gnu
> >    Compiler version:    g++ -std=gnu++11 4.8
> >    Compiler flags:      -pipe -Wno-multichar -Wno-write-strings
> > -fno-enforce-eh-specs -Wno-non-template-friend -s -O3 -ffast-math
> > -march=native -pthread
> >
> > and i sourced these libraries from opensuse repositories during build:
> >
>
> forgot to mention that package names in your repository are most likely
> different ... i routinely read and write exr and hdr formats

the difference in the SUSE and unbuntu libraries seem too much to be compared.
for what it is worth, i compiled uberpov for windows 7 and EXR works just fine.
one difference from yours i see below is the compiler version; could this be my
problem?


POV-Ray 3.7.0.1.unofficial

Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Built-in features:
  I/O restrictions:          enabled
  X Window display:          disabled
  Supported image formats:   gif tga iff ppm pgm hdr png jpeg tiff
  Unsupported image formats: openexr

Compilation settings:
  Build architecture:  x86_64-pc-linux-gnu
  Built/Optimized for: x86_64-pc-linux-gnu (using -march=native)
  Compiler vendor:     gnu
  Compiler version:    g++ 5.4.0
  Compiler flags:      -pipe -Wno-multichar -Wno-write-strings
-fno-enforce-eh-specs -Wno-non-template-friend -s -O3 -ffast-math -march=native
-pthread


thank you.

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