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On 6/12/2019 1:25 PM, Alain wrote:
> For the Sun, don't bother with light fading : Use a light with the
> parallel option and you are good. Unless your scene scale is
> interplanetary, the fading over the extent of your scene is totally
> negligible.
>
> For the extent of the Sun when using an area_light, make it's diameter
> about 0.01 of the distance. Not exact, but close enough.
>
> For more normal lights, the fade_power must be 2. No other value is
> realistic.
>
> For fade_distance : Make it small. For an area_light, it should be about
> the width of the light. For point light, a value of about 0.1 is correct.
>
Thanks. What about Lumens? Should Lumens always equal 1 for parallel
lights mimicking the Sun?
Michael
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