Simstim

About Simstim

Notes, tutorials and fast references for technical directors working across Houdini, Unreal, Blender and Rhino.

Why it exists

The official documentation for every DCC is thorough, but finding one function, one flag or one working example can still take longer than it should. Simstim aims to get you to the answer in a keystroke, with an example you can paste.

What's here

  • Latest: news and tutorials for technical directors, grouped by application.
  • References: searchable API dictionaries. The VEX Dictionary covers every Houdini VEX function; more APIs are on the way.

How the references are made

Signatures and contexts come straight from each application's own tools. Every summary is written from scratch in our own words, then fact-checked against the signatures and the vendor's documentation. Each entry links to the official page when you need the full detail. Spotted an error? Please tell us.

The name

In William Gibson's novels, simstim is a recording of someone else's senses that you can play back and live through. Here it's the same idea: someone else's hours in the viewport, compressed into something you can use.

Houdini, Unreal Engine, Blender and Rhino are trademarks of their respective owners. Simstim is independent and not affiliated with SideFX, Epic Games, the Blender Foundation or Robert McNeel & Associates.