"Brooks Boyd" <boy### [at] midnightdesignhqcom> wrote in message 
news:42a4915e$1@news.povray.org...
>I have an image of a sphere I'm trying to render, but the outer surface of 
>the sphere is an image map (tiff), and the scene calls to cut the sphere to 
>show a cutaway. Now, I'd like the cut edge to show the same color as the 
>surface of the sphere along the same radius as the point (just like 
>rendering a sphere of a smaller diameter with the same texture map). But 
>when I difference{} the sphere with a box, the cut edge is opaque black

Put the pigment (or texture) with the image_map into the difference 
statement instead of only the sphere and it will appear all the way to 
center.

Bob Hughes

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