From eacd20cf0e9cec39980a5e7dff47866c61da0cf1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Guimmara?=
 <sebastien.guimmara@oslandia.com>
Date: Mon, 6 Jan 2025 15:59:05 +0100
Subject: [PATCH] feat(TilesRenderer): add the load-model-start event (#906)

---
 src/three/TilesRenderer.d.ts | 1 +
 src/three/TilesRenderer.js   | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/src/three/TilesRenderer.d.ts b/src/three/TilesRenderer.d.ts
index c0ed55f8a..0ac9cf079 100644
--- a/src/three/TilesRenderer.d.ts
+++ b/src/three/TilesRenderer.d.ts
@@ -12,6 +12,7 @@ export interface TilesRendererEventMap {
 	'tiles-load-start': {};
 	'tiles-load-end': {};
 	'load-content': {};
+	'load-model-start': { tile: Tile };
 	'load-model': { scene: Object3D; tile: Tile };
 	'dispose-model': { scene: Object3D; tile: Tile };
 	'tile-visibility-change': { scene: Object3D; tile: Tile; visible: boolean };
diff --git a/src/three/TilesRenderer.js b/src/three/TilesRenderer.js
index 237e6b752..09f0504d9 100644
--- a/src/three/TilesRenderer.js
+++ b/src/three/TilesRenderer.js
@@ -573,6 +573,12 @@ export class TilesRenderer extends TilesRendererBase {
 
 	async parseTile( buffer, tile, extension, uri ) {
 
+		// dispatch an event indicating that this model has started loading
+		this.dispatchEvent( {
+			type: 'load-model-start',
+			tile,
+		} );
+
 		const cached = tile.cached;
 		cached._loadIndex ++;