From f2f6d4ff49b6cd3923216c05d75600ba1a1544fa Mon Sep 17 00:00:00 2001
From: tresabhi <43380238+tresabhi@users.noreply.github.com>
Date: Sun, 5 Jul 2026 13:44:04 -0500
Subject: [PATCH] add persistent count for the number of model users to unload
 only when uses drops to 0

---
 packages/website/src/hooks/useDispose.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/packages/website/src/hooks/useDispose.ts b/packages/website/src/hooks/useDispose.ts
index 2ff4e3685..5acc7a6ea 100644
--- a/packages/website/src/hooks/useDispose.ts
+++ b/packages/website/src/hooks/useDispose.ts
@@ -3,9 +3,19 @@ import { useEffect } from "react";
 import { Cache, Group, Mesh, MeshStandardMaterial, Object3D } from "three";
 import { GLTFLoader, type GLTF } from "three-stdlib";
 
+const users: Record<string, number> = {};
+
 export function useDispose(gltf: GLTF & ObjectMap, path: string) {
   useEffect(() => {
+    if (path in users) {
+      users[path]++;
+    } else {
+      users[path] = 1;
+    }
+
     return () => {
+      if (--users[path] > 0) return;
+
       gltf.scene.traverse((object) => {
         if (object instanceof Mesh) {
           if (object.material instanceof MeshStandardMaterial) {