well, we peons and ignorati need simple! thanks prikshatk. and guess what, it is STILL to dense for me! Let me parse it down, and since you were considerate enough to respond, perhaps you will do so again. You feed HDRShip something. Big TIFF file? Series of TIFF files? And you get back....output 'that attempts to contain the extra....' and you say that actual output cannot be viewed on print or a monitor, fair enough, I noticed the HDRI Viewer and downloaded it along with some .hdr files. Okay. Then you say "can use the information in the probe to control the percentage intensity of individual lights in your light set" so that must mean that with stewer's Python script, you can induce the .hdr probe to drive the settings on the normal lights in Poser. Do I have that right? What's that saying..."technology sufficiently advanced appears like majic to the ingorati" or some such as that. If posers mundane lights can be driven to HDRI in this way, it would look like magic to me. So now this question... does the python script drive the NUMBER of lights? Most fake GI and Radiosity schemes I have seen in Poser depend on ten, twenty, thirty lights at low intensity. Anyway, before I ask more, lets see if I am even at all clued in yet. Thanks again pridshatk, yes, someone might find it useful, myself and plenty of others. ::::: Opera :::::