IMM is a huge topic though, and we’ve barely scratched the surface of what can be done with it. You can constrain the new mesh to its original size by using the CTRL key. Once dragged out, use the space bar to move the position of the inserted mesh.

Pick another part and drag again to insert it. This brings up a pop-up menu with anything else this IMM brush has to offer. Very handy! Try it out with the IMM Parts brush: draw an object, enter edit mode, use the shortcuts B-I-A to select the brush and drag to insert a default button on your object. Imagine a brush that inserts buttons: there may be more than one button style one might need, and such styles could be stored in the same IMM brush.

IMM stands for Insert Multi Mesh, and such brushes can be created with several geometries under the hood.

Some of the default brushes are named IMM in the brush menu, but you can get dozens of others from sites like (check it out – they’re phenomenal). The skin brushes in this pack also help you to produce custom and more complex alphas. Several brushes in ZBrush insert 3D meshes into your object rather than sculpting it. A collection of 69 ZBrush custom brushes to generate high-frequency details for the skin in your characters and creatures.

Zbrush brush