Adding a 3d tracker to perfly.

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Eric Heft (eheft++at++dnaco.net)
Mon, 30 Dec 1996 17:06:06 -0500 (EST)

Hi All,

   I was wondering if anyone has done any modifications to add a 3d
tracker to perfly. To save space I'll let those interested check out
http://www.dnaco.net/~eheft/hmd.html

   The basic questions boil down to :

   Given I'm modifying perfly, and perflys default view to is +Y, and
   view up is +Z.

1: If I have a view to and view up vector, how do I get the HPR values
   used by pfChanViewOffsets?

2: If I have a DCS object (sceneDCS) which is translated to a point
   x,y,z. How do I rotate the DCS about the origin?

2a: How do you rotate a DCS node about an arbitrary point.

If you check out http://www.dnaco.net/~eheft/hmd.html please
use the mail to item at the bottom to give me any feedback on the
page layout. I'm trying to learn html :)

Thanks
Eric

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