[ODE] Newbie question about permeability forces.

Jon Watte (ODE) hplus-ode at mindcontrol.org
Mon Nov 26 12:59:52 MST 2007

Jeremy Roberts wrote:
>      The desired effect is such that the shockwave needs to apply 
> forces to neighboring objects as it expands but it should not be solid 
> (i.e. objects could still exist within it's blast radius).  

Use an expanding sphere to detect objects in radius, but don't create a 
contact joint; instead add a force. The force should probably be 
proportional to the difference between the objects velocity and the 
shockwave velocity.

I did this in my decades-old "carworld" ODE demo, back in 0.39 or so. 
That demo has still gone defunct, but it worked a treat.


          / h+

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