Could someone explain to me what this node does to light?
I’m just not understanding
It pretty much does what it says. If the light source is using a light function you can control the distance it starts to fade; when it is completely faded you see the light’s own default shape instead of what you use for light function. The reason you would want to fade out the light function is to prevent possible aliasing issues at certain distance. Parameter is also available in any light source’s Details panel.
Lights have a limited range, and you can set the fade distance for that light.
Thanks, I wouldn’t understand how it worked until someone explained it to me.