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Subject: 
Re: LD-Lite Rotation Matrices?
Newsgroups: 
lugnet.cad
Date: 
Wed, 8 May 2002 16:20:21 GMT
Viewed: 
443 times
  
In lugnet.cad, Mike Walsh wrote:

I have been using a matrix (-a-1,0,1,-0.5,-1,-0.5,1,0,1) for rendering
upside down images with LD-Lite. It works fine with one issue:  The rendered
image is also rotated 180 degrees around the Y axis (assuming X horizontal,
Y vertical, and Z out of the page). Anyone have a matrix that will turn the
image upside down without rotating it?

Try one of these, maybe they'll work:
   -a1,0,-1,-0.5,-1,-0.5,-1,0,-1
   -a-1,0,1,0.5,1,0.5,1,0,1

Otherwise, fire up your favorite LDraw file editor, set up a 1-part file
(I'd use something like 3626bp01, the minifig head).  Set your view to
Front.  Rotate the part around until it's positioned the way you want.
Use the parameters from that line as the parameters for your -a matrix.

Steve



Message is in Reply To:
  LD-Lite Rotation Matrices?
 
I have been using a matrix (-a-1,0,1,-0.5,-1,-0.5,1,0,1) for rendering upside down images with LD-Lite. It works fine with one issue: The rendered image is also rotated 180 degrees around the Y axis (assuming X horizontal, Y vertical, and Z out of (...) (23 years ago, 8-May-02, to lugnet.cad)

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