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MSFS20 Light enters buildings through wall connections

M

manwlo

Messages
108
Country
greece
Hi all,

This is an issue I face with the light @MSFS.

light.jpg

This is the interior of a building. The wall to the left extends below the ground tiles. Despite that the light seems to go through at the point those two planes touch each other. Is that a "bug" of the game engine or do you have anything in mind to resolve the issue?
MSFS, 3DSMax, Standard MSFS Material.

Regards,
-=Manwlo=-
 
Hello:

Here is one of the earliest threads pointing out these anomalies incurred by MSFS' extended glTF format via Blender 3D models:

https://www.fsdeveloper.com/forum/threads/problem-with-hanger-model.445884/


Here are some other (IMHO) related threads on such issues:

https://www.fsdeveloper.com/forum/threads/spot-light-shines-through-geometry.451430/post-909313

https://www.fsdeveloper.com/forum/t...-black-instead-of-see-through-in-msfs.456596/


AFAIK, how we 3D model with / without using "Manifold" solid geometry impacts MSFS transparency, light transmission, and shadows.

A 'recent' consensus seems to imply that MSFS may require truly "Manifold" geometry for predictable results.

https://support.shapeways.com/hc/en-us/articles/360007107674-Tips-for-a-successful-manifold-3D-model

https://www.katsbits.com/codex/manifold/

https://all3dp.com/2/non-manifold-edges/

https://www.hard-light.net/forums/index.php?topic=73970.0


Some developers here make hangars / buildings in Blender or 3DSMAX with "open" doorways, and/or walls as Faces not welded together.

This is in contrast to a Sketchup work-flow that has us draw a Face, 'extrude' that Face, then modify that Manifold object.



I suggest a invisible Face be used where there is a 'perceived' opening intended within surfaces of otherwise "Manifold" hangars / buildings. :idea:

Perhaps then one's 3D models will have "Manifooled" MSFS into a desired display of light transmission, and shadows.


IIUC, in Manifold objects, we can still make open doorways etc. as 'welded' invisible Faces without a "collision" attribute ?


It seems there is more to learn about this quirk of MSFS' rendering engine, and how best to 3D model and texture for it. :)

GaryGB
 
Last edited:
Thank you very much for the post GaryGB. Welding make things better!

Regards,

-=Manwlo=-
 
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