From 4aff06a3583714e7479d90a94548e22b0672a211 Mon Sep 17 00:00:00 2001
From: luboslenco <lubos.lenco@gmail.com>
Date: Sun, 31 Aug 2025 21:25:18 +0200
Subject: [PATCH] Check if mesh data build is needed

---
 base/sources/ts/iron/mesh_object.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/base/sources/ts/iron/mesh_object.ts b/base/sources/ts/iron/mesh_object.ts
index 0e7cec70..b98dd8c9 100644
--- a/base/sources/ts/iron/mesh_object.ts
+++ b/base/sources/ts/iron/mesh_object.ts
@@ -26,7 +26,9 @@ function mesh_object_create(data: mesh_data_t, materials: material_data_t[]): me
 
 function mesh_object_set_data(raw: mesh_object_t, data: mesh_data_t) {
 	raw.data = data;
-	mesh_data_build(data);
+	if (data._.vertex_buffer == null) {
+		mesh_data_build(data);
+	}
 
 	// Scale-up packed (-1,1) mesh coords
 	raw.base.transform.scale_world = data.scale_pos;