Path: chuka.playstation.co.uk!news
From: "Stefano Provenzano" <dragon@azzurra.it>
Newsgroups: scea.yaroze.programming.3d_studio
Subject: Rotation problems: help!
Date: Wed, 13 Aug 1997 21:31:15 +0200
Organization: PlayStation Net Yaroze (SCEE)
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Hi,
 I am writing a 3ds file format converter.

 I have a little question about the rotation system :

  How can I convert the values used by 3ds for the rotation in degree, for
obtain three 
  different rotation on the three axis?
  Why a rotation of -90° on X, -90° on Y and 0° on Z result in 3ds file:
   X=-0.577350 Y=-0.577350 Z=-0.577350 and angle=2.094395 (120°) ?

What is the matrix system that 3D-studio use for calculate the rotations?  


 Thanks in advance.

   Stefano 

 P.S.: Excuse for my english.