Interesting. However, I've got an error message with the test image:

Parse Error: sqrt of negative number -1.#IND00
(POV Ray 3.5b10 win2K)
but after this minor change:

    //#if(sqrt((Normal.x)^2+(Normal.y)^2)>0.0001)
    #if(((Normal.x)^2+(Normal.y)^2)>0.01)

it is OK

Thank you for sharing your ideas.

Gleb


"Kari Kivisalo" <ray### [at] engineercom> wrote in message
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