Linking an item onto a rotating prim which is itself linked to a rotating prim

Not having much luck here.

So thought would ask, in case it's not posible:

Take a thin disc and make it rotate

Take a box and link it to one side of this disc and the box goes around like on a merry go round.

NOW............

Create another rotating thin disc and link the 1st disk to the second disc.

Now the box seems to only move in relation to this new disc and does not do what I think it would have done which is still spin on the 1st disk which is itself spinning on the 2nd disk.

So the box does like cirlces within circles so to speak.

If I'm reading you correctly, you want to simulate an "Orbit" effect. For example, the earth orbits around the sun, and the moon orbits around the earth.


Unfortunately, you can't link prims to child prims. That is, there can only be one root prim in an entire linkset.


However, it probably is possible with a lot of prim torture and some very complicated scripts.

that's a better explanation

Yeah, I want to make a moon that rotates around the earth which is rotating around the sun.

Albiet for me it's a yellow rubber duck in the bath !!! LOL

I have it doing round in circles, (linked to an invisible disc) but I thought it would be an even more impressive duck if I linked THAT rotating disc onto another rotating disk.

But when I do that the duck is not longer linked to the 1st disc and gets linked to the second disc.

Oh well..... never mind

If there no way to generate more movements that just a circling motion? if you can't link rotating to rotating (so to speak)

Yes, you could do it.... That's what "some very complicated scripts" means. You would have to essentially have to map out the points on a closed trajectory for the child prim relative to the position of the root prim and then have your script loop continuously around the trajectory. You could even change its own rotation at every point on the trajactory if you wanted to. That seems like one hell of a lot of work to go through for a rubber ducky, though.

"That seems like one hell of a lot of work to go through for a rubber ducky, though."

quoted for posterity.