Hi Desiree,
If I understand your problem correctly, you could just multiply
the upper 3x3 of your transformation matrix with the old normal.
Translating the plane will not affect the orientation of the
normal.
Also, it is perhaps quite efficient to simply expand and
write out the [3x3] [3x1] matrix-vector product instead
of doing it with "for loops" or making a function call.
Hope this helps
Raj Vaidya
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA3D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
