From f4134b873bff4aa99cc0c6f55ada2a0650583bb0 Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Mon, 8 Nov 2021 12:01:16 +0000
Subject: [PATCH 1/2] Handle ReprojTile

---
 src/ol/webgl/TileTexture.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ol/webgl/TileTexture.js b/src/ol/webgl/TileTexture.js
index ba814c0b73..642fbc5db5 100644
--- a/src/ol/webgl/TileTexture.js
+++ b/src/ol/webgl/TileTexture.js
@@ -5,6 +5,7 @@
 import EventTarget from '../events/Target.js';
 import EventType from '../events/EventType.js';
 import ImageTile from '../ImageTile.js';
+import ReprojTile from '../reproj/Tile.js';
 import TileState from '../TileState.js';
 import WebGLArrayBuffer from './Buffer.js';
 import {ARRAY_BUFFER, STATIC_DRAW} from '../webgl.js';
@@ -152,7 +153,7 @@ class TileTexture extends EventTarget {
     const gl = helper.getGL();
     const tile = this.tile;
 
-    if (tile instanceof ImageTile) {
+    if (tile instanceof ImageTile || tile instanceof ReprojTile) {
       const texture = gl.createTexture();
       this.textures.push(texture);
       this.bandCount = 4;

From 4a80ebe1fc458c8cf5ca9df16c0cad4f6421f71f Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Mon, 8 Nov 2021 12:11:43 +0000
Subject: [PATCH 2/2] expire cache for tileGrid projection

---
 src/ol/renderer/webgl/TileLayer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/renderer/webgl/TileLayer.js b/src/ol/renderer/webgl/TileLayer.js
index cc6f9c3f88..5ad6d238e2 100644
--- a/src/ol/renderer/webgl/TileLayer.js
+++ b/src/ol/renderer/webgl/TileLayer.js
@@ -503,7 +503,7 @@ class WebGLTileLayerRenderer extends WebGLLayerRenderer {
      * @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
      */
     const postRenderFunction = function (map, frameState) {
-      tileSource.expireCache(tileSource.getProjection(), empty);
+      tileSource.expireCache(frameState.viewState.projection, empty);
     };
 
     frameState.postRenderFunctions.push(postRenderFunction);