Simulating Inertia “Asteroids” videogame-style

[Greg Burrus]

If I where to try this with dynamics I would look into playing with the linear damping and follow position. You may be able to rig something up so that you could animate some linear damping on the movement to give it that asteroid slow down feel.

You could set a initial velocity then key in some linear damping then set it back to 0 to let it keep moving. Depending on what your scene that could work for the beginning then you could add some wind or attractors to make it move faster after the initial burst.

There probably is a setup for this already in c4d with thinking particles so you may want to look through the content browser for a setup that may work.

Hope that helps

Greg

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[Corrado Carlevaro]

Thank you, but isn’t there a more staightforward way to do that? I just want the object not to come to a complete stop at the keyframe, kind of a secondary motion system, or maybe it’s just a matter of keyframe interpolation

[Greg Burrus]

Not sure if you can have a secondary motion system like you can in 3ds max with animation layers if that’s what you had in mind. You definitely could do it with just key frame animation it would just be a matter of adjusting the interpolation with curves to get the motion you want for the movement.

You also could have the main movement controlled by a null then the main object could have its own animation keyframes below it.

Greg

https://mogra.g2bproductions.com/ – Blog
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[Adam Trachtenberg]

You could use dynamics with the simuluation>dynamics>motor object, by placing the motor as a child of your object and animating its rotation and force. Pretty hard to control, though.

[Corrado Carlevaro]

I tried with motor, it’s working but yes, hard to control. At least now I know there isn’t a simple solution.
Thank you

C.C.