topic Re: Get vertex position after flex in 3ds Max Programming Forum

Get vertex position after flex

Anonymous — Fri, 19 Dec 2008 05:30:31 GMT

Hi,

Simple problem, no idea how to solve it 😉

A line shape has a simple flex modifier applied.
When I try to get a specific vertex (6) position with getKnotPoint $Line01 1 6, it always returns the vertex position without having the flex modifier applied.
I probably need to run the getKnotPoint on a edit_spline modifier after the flex modifier?

Any idea?

Thanks,
Davy

Re: Get vertex position after flex

Steve_Curley — Fri, 19 Dec 2008 05:46:26 GMT

See if this thread helps any.

Re: Get vertex position after flex

Anonymous — Fri, 19 Dec 2008 06:06:21 GMT

No, not really, I think mine is really Flex related.
Flex updates the line but when using getKnotPoint, it doesn't go all the way up to Flex so it results in the line vertex position without any Flex applied =(

Davy

Re: Get vertex position after flex

Steve_Curley — Fri, 19 Dec 2008 06:12:24 GMT

Don't ask me what happened there - completely the wrong thread...

I've edited the post above to have the correct link - apologies about that.

Re: Get vertex position after flex

Anonymous — Fri, 19 Dec 2008 07:15:00 GMT

Nope, that's about vertices from geometry while mine is from a spline.

I don't understand why it won't get the correct vertex position after flex is applied. Looks like flex does not affect the reall position from all vertices?

Davy

Re: Get vertex position after flex

Steve_Curley — Fri, 19 Dec 2008 07:35:18 GMT

I don't understand it either, but that is why (in the other thread) the solution is to take a snapshot - which does happen at the top of the stack and therefore includes all the changes made by the modifiers.

Ahhh - I knew I'd seen this question before - area.autodesk.com/forum/Autodesk-3ds-Max/maxscript/solved-obtaining-coordinates-of-a-spline-vertex-affected-by-flex/

Re: Get vertex position after flex

Anonymous — Fri, 19 Dec 2008 17:45:39 GMT

Sweet, works like a charm...

Thanks a lot,
Davy