Cocos Creator 3D uses spherical light instead of point lighting, because physical light sources in the real world have light source size attributes.
|Light source color
|Whether to enable color temperature
|Light source size
|Lighting impact range
|Selected unit for light intensity
Spherical light supports two unit system: luminous power and luminance
|Luminous power in lumens (lm)
When Term is specified as LUMINOUS_POWER, lumen is used to indicate the light intensity
|Brightness, unit Candela per square meter (cd/m2</ sup>)
When Term is specified as LUMINANCE, brightness is used to indicate light intensity
Continue to the Spotlight documentation.