Optimize Rhino before export to FBX.

The same rules apply to playcanvas, unity or any other real-time rendering engines. 

using “ungroup, explode, purge, joint, extracrendermesh, and reducemesh”. exercise file download: Rhinoclean

Step 2. Transfer a building model

Note: Please join your building objects in GH or use the “join” command in Rhino before you export to Unreal. You do NOT want to have hundreds of small objects, each saved as an separate files in Unreal, or playcanvas.