It will pay dividends to learn how they work what the settings do and how to work around problems like this.
Unity directional light bleeding through wall.
I was wondering how i could go about culling the lights so they no longer shine through walls.
That s why shadows exist.
Position these to block any light leaking through the bottoms of walls.
Any help is greatly appreciated.
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Note that this will take a long time depending on the size of your scene and the number of lights 3.
You can simulate this in shaders or use raycasts to see if the light is behind a wall.
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These options have obvious edge cases that can t be easily resolved.
A potential solution is to open the gameobject s mesh renderer a mesh component that takes the geometry from the mesh filter and renders it at the position defined by the object s transform component.
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This is caused because the use inverse squared falloff is set to on by default forcing you to have to use way more lights than whats needed or to set it s value far outs side acceptable values.
In that case you ll need to be a bit more clever.
As an off the wall guess though it looks like your trying to force beta your lighting values far beyond their limitations that is causing the lighting solution to bleed.
Place it just behind your wall so that it blocks the light from leaking out.
I believe this has something to do with culling masks or light culling.
In some situations normal bias can cause an unwanted effect called light bleeding where light bleeds through from nearby geometry into areas that should be shadowed.
I am having a strange problem with light bleeding through my meshes and causing light lines in the shadows see this image it was working great press j to jump to the feed.
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I have found that when i disable the directional light and use the gaia light presets the bleed through issue goes away.
Set the point light s baking property to mixed or baked then bake your lighting data using the lighting tab.
You can start here in the unity manual.
Shadows are the obvious answer however i assume you are using lite and that s not an option.
If a light is next to a wall on one side you can see it on the floor on the other side.
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Shadow maps are a kind of fickle technology.
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