hello,

i'm curently using povray 3.5, and when i create scene the render generates
a .bmp image..which satisfy me till someone told me that it is possible to
create png files with transparent background (the white of my scene will be
fully transparent) ..
My problem is that i dont know in which ini file  the .bmp could be change
in .png and which parameter will allow transparency ...


alisea..

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POVGroup <zor### [at] brefemailcom> wrote:
> i'm curently using povray 3.5, and when i create scene the render generates
> a .bmp image..which satisfy me till someone told me that it is possible to
> create png files with transparent background (the white of my scene will be
> fully transparent) ..

  Use the command-line parameter +fn (if you are using the Windows version
you can put that in the command-line parameter field, which is at the right
of the resolution dropdown menu on the top of the application).
  If you want to make this change permanent, put that option at the end
of the main povray.ini file (there's a shortcut to edit that file in the
tools menu).

  To switch the alpha channel on, use +ua.
  (I don't recommend writing this to the master .ini file because then
it would be *always* calculated. Better just put it in the command-line
field when you want it to be used.)

  Note, however, that if I remember correctly POV-Ray 3.5 doesn't calculate
the transparency correctly when using antialiasing, semitransparent objects
nor media. You'll have to upgrade to 3.6 for them to work properly.

-- 
                                                          - Warp

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thanks ...




news:452e2b03@news.povray.org...
> POVGroup <zor### [at] brefemailcom> wrote:
> > i'm curently using povray 3.5, and when i create scene the render
generates
> > a .bmp image..which satisfy me till someone told me that it is possible
to
> > create png files with transparent background (the white of my scene will
be
> > fully transparent) ..
>
>   Use the command-line parameter +fn (if you are using the Windows version
> you can put that in the command-line parameter field, which is at the
right
> of the resolution dropdown menu on the top of the application).
>   If you want to make this change permanent, put that option at the end
> of the main povray.ini file (there's a shortcut to edit that file in the
> tools menu).
>
>   To switch the alpha channel on, use +ua.
>   (I don't recommend writing this to the master .ini file because then
> it would be *always* calculated. Better just put it in the command-line
> field when you want it to be used.)
>
>   Note, however, that if I remember correctly POV-Ray 3.5 doesn't
calculate
> the transparency correctly when using antialiasing, semitransparent
objects
> nor media. You'll have to upgrade to 3.6 for them to work properly.
>
> -- 
>                                                           - Warp

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