Re: Inventor loader messes up indexed linesets

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From: Bram Stolk (bram++at++sara.nl)
Date: 02/04/2001 22:06:24

Guillaume Smietanski wrote:

> One of our old problem was maybe the same as your:
> in the loader (Performer/src/lib/libpfdb/libpfiv/pfiv.C) a rotation is
> made which has for me NO SENSE.
> This is in the
> pfGroup * pfdConvertFrom_iv(SoSeparator *ivRoot)
> function with the following lines:
> // Transform from GL/Inventor's Y-up coordinate system to Performer's
> Z-up
> mat.makeRot(90.0f, 1, 0, 0);
> pfRoot = new pfSCS(mat);
>
> So maybe you only need to have a "new" loader without this rotation.

This rotation is harmless.
It will be applied to all vertices of the lineset (in fact to all
geometry in the iv file), and merely does as stated:
Transform from GL/Inventor's Y-up coordinate system to Performer's

Something else causes this bug.
Probably when going from indexed-representation to non-indexed
representation.

   Bram 

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