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Tanto
In the Collision tab of the solver, check the Override Attributes parameter, and add "v" to the list.

Brilliant, thanks a lot.

Now the animated velocity for the collider works as expected. Why animating this attribute is not working by default goes beyond me...but then, this is Houdini, why make things simple when they can be complicated.

Does anyone know of a way to animate the point velocity of a collider in a RBDbullet sim ?

It's a very basic test setup, a sphere with some pointvelocity crashing into a fractured object.

I can set the "active" frame with a "rbdconfigure" for the fractured object, and that works as expected.

But as soon as I try to do the same for the collider the animation / velocity is completely ignored. Or when I keyframe the "pointvelocity" it's ignored as well, seems "pointvelocity" is only working when it starts on frame 1 ?

I attached a simple setup with an animated pointvelocity that goes from a value 0.1 to 25 in 25 frames and is completely ignored. Also some SOPs with non animated values for velocity and "active" just reconnect to see the result.

Thanks.

Thats what crossed my mind as well, it wouldn’t be the first time something I suspect is a bug turns out to be by design. But setting the Null axis off center would be a silly choice me thinks.

Because like in this case, when you select anything else then a null as an icon, objects snap off center to the Null.

But thanks for checking, I’ll submit an RFE.