Rain falling through MLO

FiveM Resource Development Discussion
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I’m currently working on creating my first MLO, I’ve got everything loading in game so far but when it rains the rain seems to settle on the floor of the building. I’ve checked all flags and searching for it but can’t seem to find a proper answer anywhere. I’m using Blender 4.4.3, CodeWalker30_dev48 and the most recent Sollumz update as of this post. Any help or suggestions appreciated.

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Checklist I follow:

  • Verify Room Flags: Open your .ytyp in CodeWalker and meticulously check the flags for every room in your MLO. Ensure “No Exterior Light” is enabled for all of them.

  • Inspect Portal Directions: In Blender with Sollumz, visualize your portals and their normals. The blue arrow indicating the normal direction for any portal leading outside should point away from the interior.

  • Confirm Shell to Limbo Link: Double-check in CodeWalker that your MLO’s shell geometry is correctly assigned to the “Limbo” room.
    Simplify and Test: If the issue persists, try creating a very simple, single-room MLO with one portal to the outside. Get this working correctly first. This will help you understand the fundamental principles before applying them to a more complex structure.

  • Check for Leaks: Ensure your MLO’s shell is completely sealed. Any gaps or holes in the geometry could potentially confuse the occlusion system.

By working through these steps and paying close attention to your room and portal configurations, you should be able to remove the rain from your interior and keep them dry, no matter the weather outside.

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