> isosurface { function { pow( (pow(x,2) + pow(y,2) + pow(z,2) - 1)> ,2) } gives no object.
Hello!
What you see, using an isosurface is the functiuon, where it's value is
equall to a threshold. This Threshold defaults to 0. The function you use
above is greater zero in every point but the origin.
If you alter the threshold setting to 1, you will see something.
Kalle
