# FMOD\_3D\_HEADRELATIVE and FMOD\_INIT\_3D\_RIGHTHANDED

**URL:** <https://qa.fmod.com/t/fmod-3d-headrelative-and-fmod-init-3d-righthanded/14473>\
**Category:** FMOD Engine\
**Created:** [March 22, 2019, 12:37am UTC](https://qa.fmod.com/t/fmod-3d-headrelative-and-fmod-init-3d-righthanded/14473 "2019-03-22T00:37:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bprendergast62](https://avatars.discourse-cdn.com/v4/letter/b/8edcca/32.png) [@bprendergast62](https://qa.fmod.com/u/bprendergast62)\
**Post date:** [March 22, 2019, 12:37am UTC](https://qa.fmod.com/t/fmod-3d-headrelative-and-fmod-init-3d-righthanded/14473/1 "2019-03-22T00:37:10Z")

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It looks like the coordinates in FMOD\_3D\_HEADRELATIVE aren’t affected by FMOD\_INIT\_3D\_RIGHTHANDED.

I’m testing a sound that I’ve placed on the left in WORLD RELATIVE mode. I can flip the sound between left & right via FMOD\_INIT\_3D\_RIGHTHANDED and it behaves as expected (i.e., which direction +X is will change with a LH vs. RH coord system).

When I do the same with HEAD RELATIVE mode (i.e., place it to the left of the listener),  
flipping FMOD\_INIT\_3D\_RIGHTHANDED has no effect.

I was wondering if this was known and/or if anyone else has experienced this.

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**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [March 28, 2019, 4:32am UTC](https://qa.fmod.com/t/fmod-3d-headrelative-and-fmod-init-3d-righthanded/14473/2 "2019-03-28T04:32:47Z")

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It looks like this is a bug, 3D right-handed isn’t being considered when calculating the pan for a head relative channel.

I have added this as a task to fix for a future version.

Thanks for reporting this!