How to Insert FBX into Roblox Studio

Step 1: Model Preparation and Polygon Budget

Before importing, ensure your model meets Roblox mesh specifications:

• Polycount Limit: Standard MeshParts support up to 20,000 triangles. Complex models exceeding 20,000 triangles must be split into multiple sub-meshes.
• Scale & Pivot: Apply all transforms in Blender (Ctrl+A -> Apply All Transforms) and position the pivot point at the base of the mesh.
• Units: Set your modeling software units to meters or studs to avoid microscopic or gargantuan model imports.

Generate game-ready 3D FBX models with automated topology using our Image to 3D Model Generator.

Step 2: Use the Unified 3D Importer in Studio

1. 1 Open your experience in Roblox Studio.
2. 2 In the top ribbon bar, click the Home or Avatar tab and select 3D Importer.
3. 3 Browse to your `.fbx` or `.gltf` file and click Open.
4. 4 In the 3D Importer preview dialog, inspect your mesh geometry, material textures, and collision preview.
5. 5 Ensure Import Materials is checked to automatically import diffuse, normal, and roughness maps.
6. 6 Click Import to upload the mesh to your cloud inventory and insert it directly into your Workspace.

Step 3: Configure Collision and Physics

Select your imported MeshPart in the Explorer and inspect the Properties panel:

• CollisionFidelity: Set to Default for simple props, Hull for vehicles, or PreciseConvexDecomposition for intricate buildings and doorways that characters need to walk through.
• Anchored: Check Anchored if the object is static environment scenery that should not fall or move when bumped by characters.
• CastShadow: Toggle off for small decorative foliage or tiny props to optimize mobile rendering performance.

Roblox FBX Import FAQ