[Radiance-general] rad and/or mgf to 3ds/dxf

[Gregory J. Ward]

Whoops -- that's what I get for not reading e-mails carefully.   
Cristiano's e-mail arrived in such a tiny font that I could scarcely  
read it, though.  That's my excuse, and I'm sticking to it.

I also naively thought that VRML-2 would be upwards compatible with  
VRML-1.  And I hadn't heard about the problems with floating point  
values before.  I should probably look into VRML-2 at some point.  In  
a parallel universe, I'm sure I have time for that.

-Greg

> From: "Lars O. Grobe" <grobe at gmx.net>
> Date: July 24, 2006 10:56:42 PM PDT
>
> Hi!
>
>> There is also a program distributed with Radiance called mgf2inv,
> [...]
>
> I think that is what Christiano tried. There are two point to consider
> using mgf2inv. The first is, that it creates vrml-1. There are very  
> few
> programs reading vrml-1 worlds in our days, most vrml-parsers support
> vrml-2 (aka vrml-97), and all development work goes to x3d. The second
> is that I experienced problems with the notation used for floating
> points in mgf2inv's output. That can be solved with some
> printf-formatting strings. Note that mgf2inv uses a floating point  
> that
> conforms to the standard. Still, e.g. when I tried to import into  
> formZ,
> I had to change it. If you use those old vrml-1 parsers, be  
> prepared to
> find lots of bugs - most of these vrml-1 parsers have been more or  
> less
> neglected for years. You know that Blender reads vrml-1? Just break  
> your
> scene into parts, because Blender does not like to import very complex
> scenes at once sometimes. And keep your units so that dimensions  
> are not
> exceedingly big or small.
>
> Francesco, if you really managed to write an obj output-filter, that
> would be GREAT!!!! Will have a look at it tomorrow. This would be my
> prefered choice!
>
> CU Lars.
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