Adding 3D Models to Decentraland Scenes

RULE: Check bounding boxes before placing models

A model's Transform.position is its local origin, not its visual extent. Vegetation and large structural models often extend 6–12 m beyond their origin. A tree placed at x=2 can render at x=–10 — outside scene bounds and invisible to players.

Before placing any GLB model, determine its actual world-space bounding box. Raw accessor min/max values are NOT sufficient — many catalog models have large node-level scales or translations baked into the GLTF scene graph (e.g. a head model whose accessors say 0.6 m but whose node scale is 23× giving an actual size of 14 m). You must account for node transforms.

Use this script to compute the true rendered size: