A wiggle surface with its Gaussian curvature as a scala field, stexture
mapped ontop, using irender.

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[OBJECT [diffuse 2] [specular 2] [stexture_bound "-30.0, 30.0"] 
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    [color 14] WIGGLE
    [SURFACE BSPLINE 3 5 3 3 E3
	[KV        0        0        0        1        1
	            1]
	[KV        0        0        0        1        2
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