1.) Draw irregular polygon shapes on each of the 3 axes (I used three 5-sided shapes).
2.) Select all three closed shapes and run the boolean merge command.
3.) Delete all the extraneous parts and you're left with a rock shape.
It's hard to control with any artistic eye, but the results are very easy to produce.
I found that you can "find your groove" when doing this process and make oblong rocks or whatever.
I'd imagine you could make the rock more "shale-like" if you change the lines to slight concave curves.
A "tumbled rock" look could be achieved with convex curves.
Nothing beats the SubD process for boulders and round river rock though.
Note: I should mention that Pilou made me aware of this way of modelling. He's a genius!
:) Cool...you must now make some landscapes render with them! ;)
Not made here but look this other trick ;) Input an image of your Moi's Objects (your rocks) inside Wombo with some % influence ...et voilĂ ! :) https://www.wombo.art/
Or in direct you can also with The magic free Wombo ;)
tiny cubic geometrical rocks filling landscape
Here with a poly modeler but that will be exactly the same in Moi3D! :)
Just use the ExplodeMove Function after any Trim (Press Tab write ExplodeMove) hidden function...