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Is there a way to know the compatibility of OPs?


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For instance I was using the Knife OP, but it only seems to work on Polygon and Polygon Mesh, not Primitive, Mesh, NURBS, Bezier, Points.

I assume it would in theory if they used different implementations based on geometry type (not sure if can be queried) but it must have a single definition.

It doesn't error out though it's look and see if it works, rather than this geometry type is not supported. Not sure which one is better.

In the help card, it doesn't mention which types are supported either.

So is the best way to know the compatibility of OPs is to try them out with different geometry types? Would be very cool if there was a table that shows it.

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Good question,

The only way I know is to look at what Tab menu the OP was placed under. The other way, is trail and error.

Another thing that bugs me is the phantom feature an OP does. For example, you post a question on the forum "how do I do X in SOPs?" and someone tells you to use some OP and turn on some feature. Something you'd never discover on your own, or from reading the manual. Sometimes I want to make assets that do nothing but what X does, and simply embed that OP and turn on the feature. At least I'd have something called what I want in the Tab menu.

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Thanks, that's useful. Didn't think of that as mostly I just type the name of the OP :)

As for your idea, are you talking about granularity and having things more "atomic", i.e. smaller OPs?

Can you give a specific example? I am just curious.

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Thanks that's good to know. But Houdini tab menu also filters OPs based on context, right?

Yes and No.

Some OPs work on more then one context, but appear only in one menu category. The asset author has to put them somewhere.

Edited by hopbin9
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