Unity 3d Fix Lights That Shine On A Single Mesh Only Devjockeys Development Blog
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Unity Lighting Basics
On why there is still a slight light in your scene despite the walls that s unity s environment lighting.
Unity point light goes through walls. You have a point light source behind some walls. Place it just behind your wall so that it blocks the light from leaking out. Visible light does not pass through most walls. 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.
These options have obvious edge cases that can t be easily resolved. Applying that before importing your model means that the faces along that edge are not actually connected and a tiny bit of light will fall through as a result. However the dominant interaction with the wall is probably scattering. You can simulate this in shaders or use raycasts to see if the light is behind a wall.
Here is how to fix it. How much light is reflected depends on the wall. Lights are very easy to use in unity you simply need to create a light of the desired type eg from the menu gameobject light point light and place it where you want it in the scene if you enable scene view lighting the sun button on the toolbar then you can see a preview of how the lighting will look as you move light objects and set their parameters. Although you have enclosed the light indirect light from the light source seems to seep through especially on the ceiling and the floor.
A white painted wall will reflect more of the light than a black painted one. In blender there is an option called edge split which makes edges sharp. Light is also reflected by a wall otherwise you wouldn t be able to see it. Shadows are the obvious answer however i assume you are using lite and that s not an option.
Open window lighting scene and turn the ambient intensity to 0 and reflection intensity to 0 to get rid of the default ambient lighting. If the wall was made of glass then obviously the light would pass through it.
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If the wall was made of glass then obviously the light would pass through it. 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.
