Support for Space Navigator 3D Mouse?

knotff · December 27, 2017, 5:16pm

anonymous_user_bff5939d:

Thanks.

I have an update on the mac port. It is working and can move the camera, but the axis data -> Unreal mapping seems to be incorrect. Here is the current code and here is a video of the mac port in action. As I test, I am moving the spacemouse in these directions in this order: forward, back, left, right, down, up, turn side to side, tilt side to side, tilt forward and back. All movements are very, very slow and the axis mappings seem wrong. I do not seem to be able to turn “to the right” at all.

I do not understand exactly why this code works the way it does. For example I do not exactly understand how “LongToNormalizedFloat” was derived, or how the controller analog mappings work. So I am not quite sure what to change to fix this. Any help with understanding the current code would be appreciated.

If I can get the code to a state it is usable I will submit a pull request.

(One other minor note about the current mac port: I have not attempted button support yet, chiefly because the various necessary constant like V3DCMD_VIEW_ISO1 are not in the mac headers. 3DConnexion’s mac and windows APIs are VERY different for some reason. On Monday I will have access to a Windows machine so I will try to figure out what the raw number values are then.)

EDIT: Looking at the raw axis values output by my spacemouse I am finding that they are uniformly in the range -525 to 525 on all axes. I find this note in the manual: “At maximum speed, the range is -1024 to 1024. Typical range that you should optimize your application for should be -500 to 500.” Is this different from in the Windows implementation?

EDIT 2: I tried multiplying all axis values by 32 before feeding them to LongToNormalizedFloat and now it’s no longer “creeping” but any attempt to rotate is still weiiirrrddd and I’m not sure these axes are correct.

Not working on 4.18.2…
What is the latest UE4 version it works on?