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Internet Message Format  |  1995-03-19  |  2KB
  1. Return-Path: <owner-lightwave-l>
  2. Received: by netcom20.netcom.com (8.6.9/Netcom)
  3.     id XAA08767; Thu, 16 Feb 1995 23:03:45 -0800
  4. Received: from desiree.teleport.com by netcom20.netcom.com (8.6.9/Netcom)
  5.     id XAA08737; Thu, 16 Feb 1995 23:03:38 -0800
  6. Received: from linda.teleport.com (frederik@linda.teleport.com [192.108.254.12]) by desiree.teleport.com (8.6.9/8.6.9) with ESMTP id XAA26931 for <lightwave-l@netcom.com>; Thu, 16 Feb 1995 23:01:08 -0800
  7. Date: Thu, 16 Feb 1995 23:01:09 -0800 (PST)
  8. From: Karl Frederick <frederik@teleport.com>
  9. To: mailist Lightwave <lightwave-l@netcom.com>
  10. Subject: Re: Spinning an Object
  11. In-Reply-To: <Pine.3.87.9502152347.E5434-0100000@agora.rdrop.com>
  12. Message-ID: <Pine.SUN.3.91.950216225754.4084C-100000@linda.teleport.com>
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  15. Sender: owner-lightwave-l@netcom.com
  16. Precedence: bulk
  17.  
  18. On Wed, 15 Feb 1995, TV wrote:
  19.  
  20. > 
  21. > >  I have a helicopter, the blades and the tail rotor spin 
  22. > > independently of the body of the craft.  
  23. > > 
  24. > 
  25. > You don't really even need to have a null object. Just parent the rotors 
  26. > to the body. Wherever you move the body, the rotors will stay right 
  27. <snip>
  28.  
  29. Close.  Also, read the section on Gimbal Lock.  It describes the exact 
  30. situtation of parented objects, you need.
  31.                          .
  32. -Karl                     .
  33. Karl Frederick               .
  34. Portland, Oregon                 .
  35.                                          .
  36.                                                         .
  37.                                                                            .