Modifier plugin doesn't react to Animation.

mateusz_s — Sat, 21 Mar 2026 21:32:59 GMT

I am working on the MODIFIER plugin -

everything works when I move the sliders manually

but when I try to animatethe sliders - nothing happens.

The sliders themselves are animating - the values are changing over the time.

But Modifier doesn't react to them.

Also functions like GetValidity and LocalValidity are not executed whlie the animation is playing?

I used the 3ds max Wizard Modifier template as base,

using the Modifier base class.

Thanks in advance!

Re: Modifier plugin doesn't react to Animation.

mateusz_s — Sat, 21 Mar 2026 21:52:23 GMT

Ok, fixed.. I added those lines at the end of ::ModifyObject(..) function.

_os->obj->UpdateValidity(TOPO_CHAN_NUM, ivalid);

_os->obj->UpdateValidity(GEOM_CHAN_NUM, ivalid);