Contents

intensity

The intensity of the directional light, measured in lumen per square meter.

Declaration

var intensity: Float

Discussion

Lumen per square meter, also known as lux, measures how much light is spread over an area. It tells you how bright a surface appears based on the light it receives.

The default value for this property is 2145.7078.

Use the following table as an estimate for Lux levels:

Environment

Typical Lux Level

Full moon

0.1 - 1 lux

Street lighting

10 - 20 lux

Living room lighting

50 - 100 lux

Classroom

250 - 750 lux

Office lighting

300 - 500 lux

Sunrise/Sunset on a clear day

400 lux

Overcast daylight

1000 - 2000 lux

Photography studio lighting

1,000 - 2,000 lux

Ambient daylight

10,000 - 25,000 lux

Direct sunlight

32,000 - 100,000 lux

See Also

Setting intensity and shadows