A few years ago at SolidWorks World I saw a technical tip of how to create a rock by using a spherical part and applying a appearance to it. does anyone remeber this and more importantly remeber how to do this?

A few years ago at SolidWorks World I saw a technical tip of how to create a rock by using a spherical part and applying an appearance to it. Does anyone remember this and more importantly remember how to do this?

SolidworksParts And Features