Knitbox is a collection of digital assets for procedural creation of 3D fabric created in Houdini and rendered with Arnold on Gridmarkets.
Houdini Engine for 3ds Max
Houdini Engine, the 3ds Max plug-in enabling Max artists to import and edit content created within Houdini, is now available for free.
Houdini Engine for Autodesk Maya
SideFX have released Houdini Engine for Maya, with 3ds Max and Unreal versions coming soon.