SideFX Houdini

Houdini is a nonfree proprietary program developed by SideFX. It allows defining procedural assets via various nodes, in a workflow akin to Blender's geometry nodes.

It is used in DAE's 3D for Games course (fourth semester).

Despite being proprietary, Houdini works very well on Linux, likely thanks to it packaging a semi-recent version of Qt. It does not, however, run natively on Wayland.