I'm trying to follow along with a tutorial but am stuck.
The tutorial is from v13 and I'm using v16.
How do I generate a random ranged whole value in the “Base Group” field?
The effect based on the random value generated between these two numbers a sphere will go to those points.
The second group will have a different set of ranged values.

This is my first week in Houdini.

The old Group SOP functionality was split into a few separate SOPs in Houdini 16.0. The new Group Expression SOP lets you type a VEX expression (VEXpression) to evaluate on each point/primitive, and if the integer value is non-zero, the point/prim will be included in the group, else it will be excluded. You can do something like:


to randomly select around half of the points. This is similar to the previous rand($PT) < 0.5in HScript. If you need the exact same random numbers as HScript in VEX, you can use the hscript_randVEX function instead of rand. Hopefully that helps!