Inverse of computeLookAtFromYawPitch: given a lookAt direction and centre, recover the yaw/pitch that would produce it. Writes [yaw, pitch] into result. currentYaw is used as a fallback when looking straight down/up (yaw undefined).
[yaw, pitch]
result
currentYaw
Inverse of computeLookAtFromYawPitch: given a lookAt direction and centre, recover the yaw/pitch that would produce it. Writes
[yaw, pitch]intoresult.currentYawis used as a fallback when looking straight down/up (yaw undefined).