Dynamics Compound Object Mass

[makkar]

Hi,

I didn't find any functions to set the mass and other properties of a particular element of a compound dynamic object. Like having the metallic head of a hammer be heavier than the handle.

The dynamics.setMass function will handle the whole compound as universally having the same mass.

Can this be done with the current Shiva implementation of ODE?

[FF.Fan]

I'm afraid not

[makkar]

Then what would be the solution with the current ODE implementation?

Make two separate dynamic objects, create a hinge joint between them and limit the rotation angles to 0?

Or is there a better way for establishing rigid connections?

[broozar]

you can apply different mass values in the editor for each component directly, though i cannot currently test if it makes any difference in the simulation.
the bullet plugin demoed here recently supports compound objects in the latest v0.02, maybe it's worth a look.

[makkar]

No, the Editor will also use the last given parameter for all the compound objects, globally.