   Billboards to emulate a sphere.
  Dear All,I'm having a little bit of a mental block on this subject. Suppose I have a sphere I wish to render using billboards. If the sphere is uniformly colored, it seems to me that I should be able to render this indistinguishably with billboards. However, toward what exactly should the billboard face? Should the billboard normal point toward the eye position, or the nearest point on the near plane. I've actually tried both, so I may have some other issue, but  it seems to me it ought to point toward the eye position. My reasoning is that in this case the billboard perfectly bisects the visible portion of the sphere. Regards,Jesse   
  The billboard should be facing the camera. Otherwise it will look like a billboard.   ;  Yeah if it was parallel to the near plane, then it would look skewed when at the edge of your field of vision, so facing the eye pos makes sense.   ;  That is what I thought. Thanks,Jesse   