Path: chuka.playstation.co.uk!news
From: Craig Graham <c_graham@hinge.mistral.co.uk>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Re: DXF RSDV RSDTOOL 3DSMAX
Date: Thu, 02 Apr 1998 18:03:15 +0100
Organization: Intelligent Research
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Karsten Wutzke wrote:

> I've just created a first 3D model for use in a game...
> I created a car with 3D Studio MAX and exported it
> to DXF which was then converted to RSD. When I
> loaded the RSD into RSDTOOL all polygons (triangles)
> pointed into the opposite direction in which they were
> supposed to. It looked awful when I used that model with

> RSDV, but I blamed my model for its bad looks.

Use:
    dxf2rsd -v -s -Y-Z my_model.dxf

> When I reentered MAX and flipped ALL face normals
> of my model, exported to DXF and RSD, and loaded it
> into RSDTOOL it looked correct. However, RSDV
> didn't like it and still displayed it incorrectly. Why?
>
> Which program shall I believe in then? RSDTOOL (which
> displays it correctly) or RSDV (which displays it incorrectly)?
>
> Why do I have to create a "wrong" 3D model (a model in
> which the polys originally point in the wrong direction) to make it look
>
> correct in RSDTOOL?
> Or: Is the 3DSMAX - DXF Exporter crap?
> Or: Did I do anything wrong here?

The DXF exporter in 3DSMAX is crap (as well), it munges up with
some models and the exported DXF will fail to convert with DXF2RSD.
For those with access to Interchange, exporting as 3DS then using
Interchange to generate a DXF will get more reliable results.

> For my part, I won't be doing any (real) programming before I
> can't be sure that the models I create are somewhat bulletproof
> in sense of correct data...

See above.

> Karsten

  Craig.