Expression functions let you compute the value of parameters.
Tips and tricks for writing expressions to accomplish various effects.
How to script Houdini using Python and the Houdini Object Model.
VEX is a high-performance expression language used in many places in Houdini, such as writing shaders.
HScript is Houdini’s legacy scripting language.
How to write and combine multiple environment variable definition files for different plug-ins, tools, and add-ons.