I'm playing with using BillBoard... whenever I set the

  bb.setAlignmentAxis(0f, 0f, 1f )

to select the Z-axis, the object DISAPPEARS.  If I take the axis a
LITTLE off the Z:
  float D = 0.001f;
  bb.setAlignmentAxis( 0f, D, Math.sqrt(1f - D*D) );

It works fine.  What's wrong with using EXACTLY the z-axis?? Using x- or
y-axis works.  Anybody else see this?

-Lee

J. Lee Dixon
Software Engineer
SAIC - Celebration, FL
[EMAIL PROTECTED]

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