

yesbird <sya### [at] gmailcom> wrote:
> Hi,
> Does anybody know the method of object scaling by some function,
> log() , for example?
> I mean scaling along the desired axis, applying scale factor, say,
> to the top part of the object more than to the lower part.
> 
> YB
Check out pg 15 of the tutorial PDF.
Nonlinear scale
#declare P = function {x*x + y*y + z*z  1}
isosurface {
function {P(x, y*(1.05y/5), z)}
....
A nonlinear stretch has turned this sphere into something like a hen's egg. The
sphere is stretched more as y
becomes larger, and compressed more as y becomes more negative.
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