I'm experiencing I problem I don't recall seeing before.  I'm building a new figure.  It looks fine in the preview window, but when I render it using FireFly it renders flat black in Poser 6, 7, and 8.  It renders fine in Poser 9 and Pro 2014.  As far as I know I built the OBJ file, UV maps, and textures the same way I always do.  The sketch and Poser 4 look OK.  Any thoughts?  Thanks.

Are there currently only prop objects in the scene? If so stick a figure in the scene, even off camera. I had this happen to me and that fixed it.

You may need to reverse the normals.

Thanks.  The normals are OK.  I use UVMapper PRo for mapping and the mesh appearsd inside out if the norams are reversed.  This is a figure, but small, more an articulated prop.  I added figure and sure enough, it rendered correctly.  Reoved the figure and black again.  Then I scaled it up by 3 and it rendered, then just by 2 and it rendered, but at 150% it rendered but darker.  At 125% it was black.  So apparently the older Poser versions have trouble rendering a scene that consists of only a small object.  Incidentally, this model is scale 7 and a half inches long.

Thanks again for the help.

Actually, there were several old threads which addressed this exact problem and solution.  Nothing new, but trying to pinpoint those threads in the Forum is like trying to find a needle in a haystack.

http://www.renderosity.com/mod/forumpro/showthread.php?message_id=4017040&ebot_calc_page#message_4017040

I searched only for the word "small", posts by me. First match was it.

Note: The solution has nothing to do with adding a figure. The figure works, but does so because it is large, not because it is a figure. Anything large (or more precisely anything that enlarges the scene bounding box to be over a foot) will fix it.

Note also that the symptom may be that the shadow is a rectangle, or it may be that the object is black. The latter is when the mistaken rectangular shadow also happens to perform the mysterious self-shadowing that Firefly is so fond of doing in an infinite number of ways.

While we're on the subject, there is the opposite condition - a very, very large scene bounding box, resulting it what looks like no shadows at all.

http://www.renderosity.com/mod/forumpro/showthread.php?message_id=3278315

Thanks for the additional info.  I did a search before I posted but was seeing only posts about black eyes or black spots or just black, period, and decided it would be quicker to post (and it was).

Thanks again.  This will be a product and I want to give purchasers a heads-up.