From b71d18b166f837c264e6ec4e431eec5a89c936c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E5=BE=B7=E5=AE=87?= <kvtodev@outlook.com>
Date: Tue, 22 Sep 2026 13:18:04 +0800
Subject: [PATCH] =?UTF-8?q?=E5=9C=BA=E6=99=AF=E9=87=8A=E6=94=BE=E4=B8=8D?=
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- packages/model3d-viewer/src/scene.ts：teardown 去掉 renderer.forceContextLoss()，只保留 renderer.dispose()，并写明原因；宿主 Model3DViewer 全程复用同一个 <canvas>，强制丢上下文会让下一个模型拿到已丢失的上下文渲染全黑

验证：npx tsc（严格模式单文件检查）、npx vitest run packages/model3d-viewer
---
 packages/model3d-viewer/src/scene.ts | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/packages/model3d-viewer/src/scene.ts b/packages/model3d-viewer/src/scene.ts
index 24d323b71..f9fd1eab2 100644
--- a/packages/model3d-viewer/src/scene.ts
+++ b/packages/model3d-viewer/src/scene.ts
@@ -173,12 +173,9 @@ export async function createModel3dViewerScene(
       roomEnvironment = null;
     }
     if (renderer) {
+      // 只 dispose，不 forceContextLoss：宿主全程复用同一个 <canvas>，
+      // 丢掉上下文后下一次 new WebGLRenderer 会拿回同一个已丢失的上下文，画布全黑。
       renderer.dispose();
-      try {
-        renderer.forceContextLoss();
-      } catch {
-        // 上下文已经丢失时忽略，释放流程继续。
-      }
       renderer = null;
     }
   }