CompuServe Messages

#Shadows

    07-Oct-94 17:45:10
Sb: #Shadows
Fm: Erik Green 71644,735
To: All
I've been dreading asking this question for half a day now. I've got a black tire which will roll thru a scene which is a perspective matched background. I want the tire to cast a shadow onto the background (give the appearance of actually). I've got a floor plane for the tire shadow to cast onto and can get just fine shadows on it but how can I key out the tire and its shadow to composite over my background. I know I'm missing something painfully obviouos here and will be red in the face when I see it, but I'm totally clueless today. Why can't a matte object receive shadows if we want it to…… That'd be cool hu hu hu hu.