Light Goes Through Walls Unity

Since you re using unity free put the plane on a specific layer.

Light goes through walls unity.

Although you have enclosed the light indirect light from the light source seems to seep through especially on the ceiling and the floor. You have a point light source behind some walls. On why there is still a slight light in your scene despite the walls that s unity s environment lighting. That s why shadows exist.

Then click on your light click on the culling mask dropdown then uncheck the layer the object is on. I am in a room where there is no light and i can see the light coming from the next. Is there a way to stop the light going through walls. These options have obvious edge cases that can t be easily resolved.

Create a unity primitive cube plane etc sized similarly to your wall remove its collider and in the mesh renderer properties set it to shadows only. Unity can set it and forget it rather than continuously having to readjust the lighting effects. Now the light will not affect the object. In that case you ll need to be a bit more clever.

You ll notice the walls have a greater gradient of color now. These are lit up by the directional light which comes with new scenes automatically. The layers are the dropdown box in the upper right of the inspector. Place it just behind your wall so that it blocks the light from leaking out.

Open window lighting scene and turn the ambient intensity to 0 and reflection intensity to 0 to get rid of the default ambient lighting. Shadows are the obvious answer however i assume you are using lite and that s not an option. You can simulate this in shaders or use raycasts to see if the light is behind a wall.