Ambient light, also known as diffuse environmental light, is light that is present all around the SceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
See in Glossary and doesn’t come from any specific source object. It can be an important contributor to the overall look and brightness of a scene.
Ambient light can be useful in a number of cases, depending upon your chosen art style. An example would be bright, cartoon-style rendering where dark shadows may be undesirable or where lighting is perhaps hand-painted into textures. Ambient lightLight that doesn’t come from any specific direction, and contributes equal light in all directions to the Scene. More info
See in Glossary can also be useful if you need to increase the overall brightness of a scene without adjusting individual lights.
After you create a skybox material, Unity can use it to generate ambient lighting in your Scene. To make Unity do this:
You can also specify when Unity updates the ambient lighting. To do this, change the Ambient Mode. The two values are: