Tips

Add a simple visualizer to your HDA using Houdini’s built-in Guide Geometry feature

Create a preset on a Null that lets you run Python code from it

Quickly switch the display for nodes with multiple outputs (Vellum, Split, RBD, etc.) without a Null

Write to attributes with one name while using another in your code

Use one VOP network or VEX wrangle to drive many others without channel referencing

Decay values in a Solver SOP while respecting substeps

Trim unwanted digits from parameter values

Faster way to dilate and erode an SDF