Hello Michael, as you already know a lot of textures are already applied with bumpmaps etc, but most lack the depth that you are after, and modelling those features with real solids can be very time consuming. The possibility of using an image to generate these kind of features would be a real bonus, especially features that are for appearance, and don't need any high level of accuracy in relation to dimensions. Your flow command is a good example, say an object created with Zsurf and then flowed onto a surface of another object, giving indentations and variation to surface contour.

I am going to have a little try with Zsurf and see how I get on, and will get back to you tomorrow.

Many thanks for your prompt reply!.