Building Your First MLO Interior (Advanced)

Designing an MLO interior consists of 4 stages: blocking out the interior, adding collision, setting up streaming zones and placing RP framework markers.

Begin with a clean mesh under 150k triangles per room. Split the ceiling, floor, walls and props into their own mesh groups for easier texturing later.

Collision is important. All geometry that players or NPCs can walk on must have a collision mesh applied to it. Try to use low-poly collision that follows the shape of the visible geometry.

Streaming zones specify when to load the interior. Put your zone triggers at the door frames so that the interior streams in while the player is walking up.

Place your RP framework markers last - evidence rooms, holding cells, triage bays. These are the hook points RP servers look for in order to trigger scripts.