From 1dc4219314ed1477dc115287a64fa2e76e245253 Mon Sep 17 00:00:00 2001
From: fuzhenn <fuzhen@maptalks.org>
Date: Mon, 26 Feb 2024 16:13:31 +0800
Subject: [PATCH] fix missed parent tiles when TileLayer in terrain, close
 maptalks/issues#608

---
 src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js b/src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js
index 38c1ff89a..675256b6f 100644
--- a/src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js
+++ b/src/renderer/layer/tilelayer/TileLayerCanvasRenderer.js
@@ -187,7 +187,8 @@ class TileLayerCanvasRenderer extends CanvasRenderer {
         const loadingLimit = this._getLoadLimit();
 
         const l = tileGrids.length;
-        const isFirstRender = layer.options['currentTilesFirst'] && this._tileZoom === undefined;
+        // !this._terrainHelper can't be deleted as parent tiles are part of terrain skin, maptalks/issues#608
+        const isFirstRender = this._tileZoom === undefined && layer.options['currentTilesFirst'] && !this._terrainHelper;
         // main tile grid is the last one (draws on top)
         this._tileZoom = tileGrids[0]['zoom'];