| RE: [AD] Proposal for new matrix functions |
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> -----Oorspronkelijk bericht-----
> Van: alleg-developers-admin@xxxxxxxxxx
> [mailto:alleg-developers-admin@xxxxxxxxxx Eric
> Botcazou
> Verzonden: dinsdag 4 maart 2003 8:36
> Aan: alleg-developers@xxxxxxxxxx
> Onderwerp: Re: [AD] Proposal for new matrix functions
>
>
> > How about two new matrix functions..
> >
> > void apply_matrix_translation(MATRIX* m, float x, y, z, float*
> xout, yout,
> > zout);
> >
> > Applies the translation part only. Polygons in OXY plane will always
> > face the screen. Usefull when doing billboarding (powerups, etc).
> >
> > void apply_matrix_rotation(MATRIX* m, float x, y, z, float* xout, yout,
> > zout);
> >
> > Applies the matrix to the 3D (not padded with 1.0) vector
> with the 3z3
> > rotational part. Usefull to rotate normals, etc.
>
> Do you really need the functions? Can't you use specialized
> matrices built
> with get_translation_matrix() and get_rotation_matrix() or
> get_vector_rotation_matrix() ?