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Setting gravity vector

From what I see gravity is hard-coded to Z-axis. Is there any way to change it without making nasty hacks? Don't care about blueprint compatibility aswell, it can be only from code.

It has to be one of the worst design decisions.

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asked Jun 16 '14 at 10:34 PM in C++ Programming

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avatar image Mark James G Jun 17 '14 at 02:45 AM

Well, the design assumes that the world isn't exactly a sphere. You're working with a z-plane and thus a flat world. What you could do is find the center of an object and revolve around that depending on your relative position. I think Rama at one point had some sort of working example of this... give me a moment to find it!


There it is. Check it out.

avatar image Neomex Jun 17 '14 at 09:23 AM

But there still won't be gravity for cloth and particles.

avatar image BlueByLiquid Oct 21 '14 at 08:46 PM

anyone ever figure out how to do this for the engine as a whole?

avatar image Mortusnyte Dec 31 '14 at 04:52 AM

Rotate the camera? :P

avatar image BlueByLiquid Jan 03 '15 at 04:55 AM

rotating the camera won't work for a number of reasons and would only work in a very specific case and not well

avatar image MutationDevice May 06 '15 at 02:53 AM

Did you ever find a solution? I'd also like to have spherical gravity...

avatar image Emidee May 06 '15 at 06:00 AM

AFAIR Epic once told they would work on a way to arbitrarily be able to change the gravity vector. I don 't know what's the status though

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Nearly 2 years late but this pull request https://github.com/EpicGames/UnrealEngine/pull/1773 does what you want. UE will hopefully incorporate it within a few months. You need a github account and access to their repo to see it.

Otherwise, without changing the code yourself, you could set all gravity to 0 and apply forces to your objects in the direction you want. This wont rotate characters though.

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answered Mar 23 '16 at 11:16 AM

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