I'm about to implement 3D-sounds for our game engine. Getting the panning right was quite simple. I'm struggling on finding a more/less accurate formula on how to calculate the volume in respect to the distance to a sound-emitter. I guess its not linear, is it?
I've already tried to google and to look at the OpenAL sources, not much luck so far.
For the sake of simplicity, our emitters emit the sound in 360 degrees, so the emitter has no direction.
Thanks in advance