...and just another tip for casting shadows - check the view from the casting light's 'Shadow Cam' to adjust the throw. (Only accessable from the Cameras pulldown under the preview window) For best resolution & sharp edges in the shadows, adjust the light so that there is very little spill outside the area of interest. For a soft edged/feathered shadow, increase the light's field of view by increasing the difference between the Start Angle & End Angle or moving the light back. Adjusting the light's throw in this manner has a similar effect to adjusting the shadowmap pixel size but without hogging memory & render speed plus allows better control. The shadow maps are actually 'real' maps but not accessable. IIRC, those are the tmp files that Poser creates in its root directory during a render & then dumps when the render completes.