Cube extrusions?
Greetings! I've created a patcher for projection mapping fractals on cubes and would like to extrude a smaller cube from the face of a larger gridshape cube. It's easily done, of course, in Blender and other 3d apps, as shown in many sophisticated examples on YouTube. In Max tutorials, I've only seen hints that this could be done with jit.matrix by selecting and extruding a range of texture bumps at the plane's normals, but I may be blowing smoke.
The icing on the cake would be controlling the extrusion distance with a slider or via MIDI note numbers. Any suggestions how to accomplish this?

We are exploring ways to make these kind of geometry manipulations, but there is not currently a good way to do this. If you are feeling adventurous you can get something going with the jit.gl.material heighmap_mode, but it is far from perfect.
Here's a simple example that extrudes on a plane using a heightmap, and links it to the transform of a cube via jit.anim.node.
Thank you very much, Rob!
I've added an Extrude sider and some default settings in this patcher. Now I'm wondering if there's a way to adjust the cube base scale independently of the plane scale?
Hi Joel,
You can also try to keep it simple and use two cubes. If you use jit.gl.pbr @tex_gen triplanar, you can get the same texturing of the cubes despite their different dimensions, and it should look like a legit extrusion:
Excellent, Matteo...thanks!