diff --git a/src/app/TileBasemap.cpp b/src/app/TileBasemap.cpp
index b661209..a3444f7 100644
--- a/src/app/TileBasemap.cpp
+++ b/src/app/TileBasemap.cpp
@@ -116,6 +116,8 @@ void TileBasemap::requestRender() {
         this,
         [this]() {
             renderPending_ = false;
+            // 渲染前更新裁剪面：把异步刚落地的瓦片纳入近/远裁剪范围，否则它们会被切(屏幕暗带)。
+            if (auto* ren = scene_.renderer()) ren->ResetCameraClippingRange();
             if (rw_) rw_->Render();
         },
         Qt::QueuedConnection);