From 0f015bb99a5947643c7667db700d204b98eedf35 Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Wed, 29 Apr 2026 23:15:19 +0200
Subject: [PATCH] Improve geometry disposal when clearing terrain meshes

---
 src/runtime-three/runtime-host.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/runtime-three/runtime-host.ts b/src/runtime-three/runtime-host.ts
index aed96266..0f0cbeb6 100644
--- a/src/runtime-three/runtime-host.ts
+++ b/src/runtime-three/runtime-host.ts
@@ -4935,13 +4935,18 @@ export class RuntimeHost {
   private clearTerrainMeshes() {
     for (const renderObjects of this.terrainMeshes.values()) {
       this.terrainGroup.remove(renderObjects.group);
+      const geometries = new Set<BufferGeometry>();
 
       for (const chunk of renderObjects.chunks) {
-        for (const mesh of chunk.levels) {
-          mesh.geometry.dispose();
+        for (const geometry of chunk.levelGeometries) {
+          geometries.add(geometry);
         }
       }
 
+      for (const geometry of geometries) {
+        geometry.dispose();
+      }
+
       renderObjects.material.dispose();
     }