Light Units

Intensity light unit allow you select diferent physical unit of the light. Usind the correct intensit unit will help you to get the correct result when you are using the Physical Camera. This take in consideration the units scale of the scene.

Values:

Scalar - means the final color of the light it is given by the color and multipler of the light without any convertion.

Lumens - the total power of the visible light was mesured in lumens. The light's intensity does not depend on its size.

lm/m/m/sr - the light power calculated in lumens per square meter per steradias. The light's intensity depend on its size.

Watts - the light power calculated in watts. The light's intensity does not depend on its s ize. Does not work like a real light bulb. (Ex. real 100W light bulb emits between 2 and 3 watts as visible light.

w/m/m/sr - the total visible light power calculated in watts per square meter per steradian. The light's intensity depend on its size.