From d1cb2c5bc7f1c32a408bad4c7e0da5690e333e0a Mon Sep 17 00:00:00 2001
From: syuilo <4439005+syuilo@users.noreply.github.com>
Date: Sun, 3 May 2026 10:00:01 +0900
Subject: [PATCH] Update worker.ts

---
 packages/frontend/src/world/room/worker.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/frontend/src/world/room/worker.ts b/packages/frontend/src/world/room/worker.ts
index 6cca5c9dd2..3f20edc6fa 100644
--- a/packages/frontend/src/world/room/worker.ts
+++ b/packages/frontend/src/world/room/worker.ts
@@ -8,7 +8,7 @@ import { GRAPHICS_QUALITY_MEDIUM, RoomEngine } from './engine.js';
 import type { RoomState } from './engine.js';
 
 let engine: RoomEngine | null = null;
-let canvas: HTMLCanvasElement | null = null;
+let canvas: OffscreenCanvas | null = null;
 
 onmessage = async (event) => {
 	//console.log('Worker received message:', event.data);
@@ -16,7 +16,7 @@ onmessage = async (event) => {
 	switch (event.data?.type) {
 		case 'init': {
 			const roomState = event.data.roomState as RoomState;
-			canvas = event.data.canvas as HTMLCanvasElement;
+			canvas = event.data.canvas as OffscreenCanvas;
 			const babylonEngine = new BABYLON.WebGPUEngine(canvas, { doNotHandleContextLost: true, powerPreference: 'high-performance', antialias: event.data.options.antialias });
 			babylonEngine.compatibilityMode = false;
 			babylonEngine.enableOfflineSupport = false;