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Help => Audio => Topic started by: kazyamof on October 18, 2016, 01:13:39 pm

Title: Spatialization doubt
Post by: kazyamof on October 18, 2016, 01:13:39 pm: Well, as always, spatialization audio is driving me crazy.
I can't found a good tutorial where this really works! I read a lot of answers on the forum, but I'm missing a step-by-step guide where some clear and simple information is presented. So I expected someone can answer me as simple as possible.

My cenario is:

Screen is 800x600.
My player moves on X screen. He spawns at Vector2(100, 500).
I wanna put a sound at Vector2(300, 500).

1 - What Position shoud I set to Sound? Vector3(300, 0, 500)?

2 - What Direction and Position I should set on Listener to make him hear the sound on right speaker while Player.Position.X < Sound.Position.X, and then on the left speaker when Player.Position.X > Sound.Position.X?
Title: Re: Spatialization doubt
Post by: Laurent on October 18, 2016, 02:40:27 pm: Quote
1 - What Position shoud I set to Sound? Vector3(300, 0, 500)?
Yes

Quote
2 - What Direction and Position I should set on Listener to make him hear the sound on right speaker while Player.Position.X < Sound.Position.X, and then on the left speaker when Player.Position.X > Sound.Position.X?
Vector3(Player.Position.X, 0, Player.Position.Y) for position.
The direction depends on where the player is facing. I'd say it should face negative Z to ear the sound as you describe it.

You see, nothing complicated ;)
Title: Re: Spatialization doubt
Post by: kazyamof on October 18, 2016, 03:10:21 pm: Quote from: Laurent on October 18, 2016, 02:40:27 pm
You see, nothing complicated ;)

Finally is working with this set up and the Direction facing -Z.

Listener.Direction = new Vector3f(0, 0, -1)

Thank you, I think I'm getting the audio's fell I want now.
This works for a platform game where -x/+x avatar's displacement fits with the 'logical' position of left/right speakers.

But what if I decide to make a topdown 2D game, where the avatar's receive rotations, I think this setup will not work anymore, right?
The avatar is rotated so the sound is on his left side, like the second section of this figure.
(https://s17.postimg.org/nuexy44f3/Sem_t_tulo.jpg)

How should I configure the Listener.Direction and Listener.VectorUp to this setup? Direction = Vector3(cos(90), 0, sin(90)) and VectorUp(0, 1, 0) ?
Title: Re: Spatialization doubt
Post by: Laurent on October 18, 2016, 03:29:53 pm: Actually, I had the "top down style" in mind when I answered you, so that should work the same way.