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I know some ways to change how quickly an object can we affected [traslation] and such, but how can I change the overall weight so it gets affected differently by gravity?

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Realtime mass changes can be accomplished with the "Edit Object" actuator (my fav) set to Dynamics>Set Mass.

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However, this still doesn't make the object fall faster(Galileo found this ~a long time ago :D)! think, what is gravity, it's a force, right? So applying more force means an object falls faster. If an object is dynamic or rigid body, you get alot more buttons to play with under "Motion". Try adding a force on the -Z axis, remember, 9.80 = 1G. Make sure to uncheck the "L" for local; that way you fall down, not toward your feet. Although they are sometimes the same place, if the player gets flipped, you have problems.

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  • $\begingroup$ This isn't getting my character to fall any faster, thank you for the help though. $\endgroup$ – blackhole Aug 3 '15 at 20:57
  • $\begingroup$ oh, yeah, i was just posting that as a compliment to @gandalf3 s answer $\endgroup$ – Scalia Aug 3 '15 at 21:00
  • $\begingroup$ @blackhole is your character a dynamic or rigid-body physics type? $\endgroup$ – Scalia Aug 3 '15 at 21:01
  • $\begingroup$ Dynamic, I thought it would be the same for rigid-body though, I am looking to apply this for both. $\endgroup$ – blackhole Aug 3 '15 at 21:03
  • $\begingroup$ If it's RigidBody or Dynamic, you could add a motion actuator set to force and just specify how powerful you want it to fall. Adding to answer $\endgroup$ – Scalia Aug 3 '15 at 21:16
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Heavier objects don't fall faster, so you shouldn't be changing the mass. instead decrease the damping factor ( which is like air resistance when falling ) and the object will go faster. also if there is a way to change the gravitational force effect on this object it would work if you increase it.

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  • $\begingroup$ This is just damping. It makes the effect of it being heavier, but now the object slides a ton. I can get the object only a little bit heavier too. Thank you though. $\endgroup$ – blackhole Jul 31 '15 at 19:51
  • $\begingroup$ to solve the sliding, turn up friction in the material physics tab. As for teh "I can only get it a little heavier" this needs an amendment of the entire scene, turn up gravity and damping on everything else by the same ratio, but leave your fall-fast obj damping at 0. $\endgroup$ – Scalia Aug 3 '15 at 20:49
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Change the Mass in Properties > Physics:

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  • $\begingroup$ I've already tried that, it doesn't seem to affect the object. Any suggestions? $\endgroup$ – blackhole Jul 29 '15 at 23:48
  • $\begingroup$ @blackhole In what way do you want the object to be affected? $\endgroup$ – gandalf3 Jul 29 '15 at 23:53
  • $\begingroup$ @blackhole Do you mean that you want to make it fall faster? $\endgroup$ – Denis Jul 29 '15 at 23:55
  • $\begingroup$ @Denis yes, I would like it to fall faster. $\endgroup$ – blackhole Jul 30 '15 at 4:51
  • $\begingroup$ @blackhole The speed at which objects fall doesn't depend on their weight; it depends on the aerodynamics of the object in question (assuming the object is falling through air). $\endgroup$ – gandalf3 Jul 30 '15 at 7:08

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