Hello! I’ve been having trouble getting the spatial positioning of 3D sound events to work correctly in my c++ game engine. I believe I’m simply misunderstanding something and it is likely a simple fix. My game is a 2D platformer with positive X axis being right and positive Y axis being down. I’ve…

The issue here appears to be that the forward vector is being set incorrectly to the X direction. Even though your up vector is flipped, the forward vector should still be in the Z direction. Given my unfamiliarity with your engine, I’m not sure whether a positive or negative Z direction forward vec…

Hi, I would expect a positive forward vector and a negative up vector to work, which makes me suspect that the 3D attributes of the events are being set incorrectly. Could I get you to provide a code snippet of how you are passing your engine’s coordinates to FMOD with Studio::EventInstance::set3DA…

Hey Leah, thanks for the response. Here’s what the code looks like for when I setup my listener attributes. s_fmod3DAttributes.forward = FMOD_VECTOR {1.0f, 0.0f, 0.0f}; s_fmod3DAttributes.up = FMOD_VECTOR {0.0f, -1.0f, 0.0f}; s_fmod3DAttributes.position.x = position.x; s_fmod3DAttributes.position.y…

Thank you Leah! This was indeed the issue. Here is what I ended up with given my coordinate system. attributes.forward = FMOD_VECTOR {0.0f, 0.0f, -1.0f}; attributes.up = FMOD_VECTOR {0.0f, -1.0f, 0.0f};

attributes.forward = FMOD_VECTOR {0.0f, 0.0f, -1.0f}; attributes.up = FMOD_VECTOR {0.0f, -1.0f, 0.0f}; So this is for the event instance 3d attributes, is your listeners forward and up vectors the same too? I’m having the same problem

[image] tlconflict: So this is for the event instance 3d attributes, is your listeners forward and up vectors the same too? I’m having the same problem Just to clarify, what positive/negative direction is your coordinate system using for each axis? Are you using the same setup as @jmcmorris ?

3D Attributes in a 2D game

FMOD Engine

tlconflict May 9, 2024, 1:51am 8

The same yeah. Really the issue was because I was not passing null for attenuation position: Top down 2D spatial sounds - #4 by tlconflict

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3D Attributes in a 2D game

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