Re: Matrix Question

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Rémi Arnaud (remi++at++remi)
Tue, 9 Dec 1997 12:13:55 -0800 (PST)

Sonu Kansal wrote:
>
> I'm trying to figure out how to read a
> Matrix generated by Nichiman Gfx: Can
> someone give me a direction or point me
> to a ref, page w/samples?
>
> the Matrix is in a file and looks like
> this:
>
> 1 // the frame #<1/33> then the 4x4 matrix below
> 1.00000 0.00000 0.00000 0.00000
> 0.00000 1.00000 0.00000 0.00000
> 0.00000 0.00000 1.00000 0.00000
> 23.51391 39.11468 -45.69330 1.00000

 Looks like a tranlation matrix:
 translation is (23,39,-45) for X,Y,Z
   
  In general:

   Rot Rot Rot 0
   Rot Rot Rot 0
   Rot Rot Rot 0
   Trans Trans Trans Scale

   Note that the Rot 3x3 matrix may also contain scale factors and
   that the Scale is usually unsused (=1)

    _ / _ _
|_) _ ._ _ o /\ |_)|\ | /\ | || \
| \(/_| | || /--\| \| \|/--\|_||_/
                                           
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