Wasn't it Warp who wrote:
>  Only linear transformations are possible with transformation matrices
>(scales, rotates and translates are just shortcuts to equivalent
>transformation matrices).
>  What you are trying to achieve is a non-linear transformation which
>is not possible with matrices.
>
>  The way to go is most probably to create the cone as an isosurface
>and then modify the input variables of the isosurface function
>appropriately.

There's an example of a non-linearly scaled sphere in my isosurface
tutorial:

<http://www.econym.demon.co.uk/isotut/substitute.htm#nls>



-- 
Mike Williams
Gentleman of Leisure

Post a reply to this message