PolyExtrude Tips in Houdini

This are basic ways you can make the most out of the polyextrude node. Will cover the main parameters and good practices, such as grouping with extrusions so that you can make your setups procedural and efficient.

Make sure you are using polygons so that we have subdivisions to extrude.

Polyextrude is the node we will be using.

To extrude individual elements choose the divide info option below group.

Inset allows us to reduce the size of extruded face.

You can also twist and increase its subdivisions to create subdivided twisted geo.

Note how the same setup works with different geo. (1:54)

The extrude options gives us ability to extrude groups and output different parts.

Enable the output back to make sure your extrusions have closed back. (4:46)

The spline controls is awesome fro adjusting the thickness and twist based on rebuilt spline ramps.

Extruding based on groups is procedural and effective. Once grouped you can pick the name of the group inside the extrude sop.(4:23)

Extrusion based on curve will allow you to control the path of the extrusion. (7:02)

(7:47) Shows you an example of how to mix both the curve extrusion and the thickness ramp control together effectively.

(8:57) Here is how to mix extrusions with vdbs and an idea of how to make growing fx.

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