Well It works!! … and it doesn’t.
This is a Z-brush alpha map of cracked mud brought in as a jpg. Cut speed 1000 variable power set for a max of 20.
Fine line etching into the surface works pretty great but the nature of the foam means a fairly uneven melt depth, and large areas of engrave will turn into a gooey mess of unpredictability.
Here is a macro shot of what the variable power setting does to XPS at 90 lines
So even with the melt limitations, for etching brick, stone and cracks for terrain models this is awesome
