From af9c696db2fefe4fc12c0ea0458a66c6ab03ad29 Mon Sep 17 00:00:00 2001
From: Manuel Martin <manmartin@mozilla.com>
Date: Fri, 26 Jan 2024 12:46:08 +0100
Subject: [PATCH] Force a matrix world update when audio is created

---
 src/bit-systems/audio-emitter-system.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/bit-systems/audio-emitter-system.ts b/src/bit-systems/audio-emitter-system.ts
index 448a6723e5..a525fc3e02 100644
--- a/src/bit-systems/audio-emitter-system.ts
+++ b/src/bit-systems/audio-emitter-system.ts
@@ -1,4 +1,4 @@
-import { addComponent, addEntity, defineQuery, removeComponent } from "bitecs";
+import { addComponent, addEntity, defineQuery, enterQuery, removeComponent } from "bitecs";
 import { PositionalAudio, Audio as StereoAudio, AudioListener as ThreeAudioListener } from "three";
 import { HubsWorld } from "../app";
 import { AudioEmitter, AudioSettingsChanged, MediaVideoData } from "../bit-components";
@@ -94,7 +94,13 @@ export function makeAudioEntity(world: HubsWorld, source: number, sourceType: So
 }
 
 const staleAudioEmittersQuery = defineQuery([AudioEmitter, AudioSettingsChanged]);
+const audioEmitterQuery = defineQuery([AudioEmitter]);
+const audioEmitterEnterQuery = enterQuery(audioEmitterQuery);
 export function audioEmitterSystem(world: HubsWorld, audioSystem: AudioSystem) {
+  audioEmitterEnterQuery(world).forEach(eid => {
+    const audio = APP.audios.get(eid)!;
+    audio.updateMatrixWorld(true);
+  });
   staleAudioEmittersQuery(world).forEach(function (eid) {
     const audio = world.eid2obj.get(eid)! as PositionalAudio | StereoAudio;
     const settings = getCurrentAudioSettings(eid);