[Opensim-users] accelerometer joystick flycam not returning to 0

[CJ Davies]

Incidentally, the same issue arises when using the accelerometer 
joystick's X axis to control Yaw.

Regards,
CJ Davies

On 23/03/12 14:34, CJ Davies wrote:
> I have an accelerometer attached to an Arduino set up to act as a
> standard USB HID joystick that can be used by an OpenSim viewer. The
> idea is that when you tilt the accelerometer up/down the camera tilts
> the same amount. I am using flycam atm because it doesn't seem that you
> can enable '3D cursor' in 'avatar' mode.
>
> When the accelerometer is laying flat, it sends a value of around 0 on
> its Y axis, which is hooked into the pitch mapping of the OpenSim
> client's joystick control. When the accelerometer is titled upwards, the
> flycam pitches up & when the accelerometer is tilted downwards, the
> flycam pitches down. All good so far!
>
> When the accelerometer is returned to laying flat from being tilted up
> or down, it outputs ~0 on the Y axis & the flycam should return to
> 'level' (eg looking straight forward, parallel to the ground). This is
> where the problem lies. If I tilt the accelerometer up & back to level
> several times, the 'level' position slowly raises, so that after a few
> tilts the flycam is pointing up into the sky when the accelerometer is
> held level. This happens if I tilt downwards & return to level a few
> times too, but much worse.
>
> I have tried all sorts of values in the joystick & camera options but
> can't find anything that effects this issue. Pitch deadzone is set to 0,
> I have tried changing feathering, the pitch scale, camera transition
> time, camera smoothing, all to no avail.
>
> I have tried the accelerometer joystick in Imprudence & Firestorm, in
> case it was client-specific, but both exhibit the same behaviour.
>
> Does anybody have any ideas?
>
> Regards,
> CJ Davies