Ambient Light
It describes the overall illumination of the environment, akin to sunlight or a distant light source. Without any light, the scene would be entirely dark, similar to a nighttime setting.
Ambient
Global light
Hemisphere
A light source that bathes the environment, much like the sun.
Camera
A default light positioned in front of the camera.
Light Color
The ambient light color is the light shade that evenly brightens every object in the scene, creating a soft glow everywhere.
Light Intensity
The strength or intensity of light.
Hemisphere
Unlike “Ambient-Light”, this light source is positioned directly overhead, with a color gradient transitioning from the sky’s color to the ground’s.
However, it doesn’t cast shadows.
Camera Light
This is a “point” light source located above the camera, functioning like a flash and casting basic shadows.
If it’s not necessary, you can disable it!