In article <36fb884e.0@news.povray.org> , Nieminen Mika <war### [at] cctutfi>  
wrote:

>   This means that the outputting is buffered, just like outputting to
> standard output in any programming language.

It is not, at least not in the POV-Ray core code.  The code used will work
on most other platforms that output the text directly. However, the GUI
platforms need to workaround certain limitations of text streams.

We are aware of the shortcomings of the current text stream only based
output when using graphical user interfaces. This will all work much better
in future versions of POV-Ray.

>   In programming languages the solution to this is to flush the stdout
> stream after outputting the text. AFAIK there's no way to flush text
> streams in povray other than outputting a "\n".
>
>   How about a new feature: #flush <stream>, where <stream> can be
> 'debug', 'render', 'warning', etc...
>   For example:
>
> #warning "This is a warning"
> #flush warning


     Thorsten

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