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dave vanhorn wrote:
> Is there any way to apply a linear twist to an isosurface?
> 
> What I'm after is to twist the heart iso, by about 30 degrees, (+/- 15) 
> along the Y axis.
> 
> 
	Replace x by (x * cos (f (y)) + z * sin (f (y))
	Replace z by (-x * sin (f (y)) + z * cos (f (y))

	Where f is a function that defines the way you want the surface to
twist (the simplest being K*y for some constant K).

		Jerome
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