Can someone make a script that would take a model and place bunch of cubes/parallelepipeds (from a group, so that scattering models already have UV maps and whatnot) using original model’s volume as a guide, to get result similar to what you see on the image ?
Right, but how do you control density/size/distribution of the greebles in/on the guide model ?
Since you are the maker of the add-on, could you please make an example that matches or rivals the sample image I posted? (you can just make a guide model using skin modifier, IMO, to have varied volume size in the mesh)
You could probably make a brush with tablet pressure that determined the cube size and paint these things relatively easily. Also automatic triplanar mapping for good looking texturing, and because they are cubes, the texturing will fit perfectly. Erase brush decreases the size and removes a cube under a certain threshold.