Fix shared atlas page invalidation per renderer

addons/addon-webgl/src/TextureAtlas.ts

@@ -132,12 +132,8 @@ export class TextureAtlas implements ITextureAtlas {
     }
   }
 
-  private _requestClearModel = false;
-  public beginFrame(): boolean {
-    const result = this._requestClearModel;
-    this._requestClearModel = false;
-    return result;
-  }
+  private _pagesVersion = 0;
+  public get pagesVersion(): number { return this._pagesVersion; }
 
   public clearTexture(): void {
     if (this._pages[0].currentRow.x === 0 && this._pages[0].currentRow.y === 0) {
@@ -206,8 +202,8 @@ export class TextureAtlas implements ITextureAtlas {
       // Add the new merged page to the end
       this.pages.push(mergedPage);
 
-      // Request the model to be cleared to refresh all texture pages.
-      this._requestClearModel = true;
+      // Invalidate renderer models so all texture pages are refreshed.
+      this._pagesVersion++;
       this._onAddTextureAtlasCanvas.fire(mergedPage.canvas);
     }
 
@@ -818,8 +814,8 @@ export class TextureAtlas implements ITextureAtlas {
           this._overflowSizePage = new AtlasPage(this._document, this._config.deviceMaxTextureSize);
           this.pages.push(this._overflowSizePage);
 
-          // Request the model to be cleared to refresh all texture pages.
-          this._requestClearModel = true;
+          // Invalidate renderer models so all texture pages are refreshed.
+          this._pagesVersion++;
           this._onAddTextureAtlasCanvas.fire(this._overflowSizePage.canvas);
         }
         activePage = this._overflowSizePage;