Hi Michael,

I see, it's okay with single surfaces. It seems when the edges are shared it doesn't work.

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Hi Danny, ok I can reproduce it now, that looks like a post pick bug.

It has to do with the selection conditions for extrude - extrude is looking for curves (or edges) or faces (or single-face breps) as the inputs, but it does not accept general multi-face "whole object" breps. So when you go click on a face it stops right there and accepts just the face as the selection target rather than selecting the whole object.

I'll look into fixing this, but this one may be a bit tricker than the other one.

Basically because the Extrude command is not looking for general full objects it sort of automatically drills in right away instead of letting the top level object get selected. But because when you click on a brep you are really initially clicking on faces (just because those are the things that make up the real "meat" as far as screen coverage of the brep) the auto-drill-in only happens for faces.

Or at least I think it's something along those lines, I will need to investigate a bit more.

- Michael

Hi Michael,

Just tried this in V2 and it works as expected is this related to the change over to the new WebKit/JavaScriptCore for the UI?

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Hi Danny, hmm that's funny that it works ok in v2. That will probably help me to track down a fix.


> Just tried this in V2 and it works as expected is this related to the change over to
> the new WebKit/JavaScriptCore for the UI?

No, it's pretty unlikely to have anything to do with that, all that UI stuff is pretty unrelated to selection logic.

It's probably changed due to fixing some other selection bug or new feature work like implementing filters and it had an unintentional side effect.

- Michael

Hi Danny, that helped a lot to know that it worked ok in v2.

I tracked it down to a selection change for the Flow command - for surface to surface Flow it needs to pick individual faces for the base surface and target surface and since at that stage it knows that it only wants faces the selection goes into a kind of "auto drill-in" mode so that faces are directly targeted with a single click without needing to select the top level object first.

That same thing is kicking in for extrude and causing this regression. Now that I know the particular thing that caused it I should be able to fix it up. Thanks for reporting it.

- Michael

Hi Michael,

> Thanks for reporting it.

No problem, glad to help out for a quality product :)

Cheers