I've been using a `sky' with all 8 primary colors arranged at the
vertices of a cube, with black at the nadir, RGB below the `horizon',
CMY above the `horizon', and white at zenith.  (See the link below for
some examples.)

I'd like to do the same thing on an object, using layered slope
functions, but it's not working.  I tried:

        pigment {
		slope x 
		color_map { [ 0 rgbt <1,1,1,1> ] [ 1 rgbt <1,0,0,0> ] }
		}
        pigment {
		slope y 
		color_map { [ 0 rgbt <1,1,1,1> ] [ 1 rgbt <0,1,0,0> ] }
		}
        pigment {
		slope z
		color_map { [ 0 rgbt <1,1,1,1> ] [ 1 rgbt <0,0,1,0> ] }
		}

I didn't expect this to come out perfect on the first try, but I didn't
expect to see nothing but blue, either.


-- 
Anton Sherwood, http://www.ogre.nu/doodle.html

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