[Bf-cycles] the behavior of independent light samples

[Mohamed Sakr]

Hi,
in Blender Cycles, at the exporter, file blender_object.cpp
I see this:
int samples = get_int(clamp, "samples");
if(get_boolean(cscene, "use_square_samples"))
light->samples = samples * samples;
else
light->samples = samples;

which means a light can have its own samples independent from camera
samples.
I wanna know what is the behavior, in this 2 cases:
1- camera spp = 100, light spp = 220
2- camera spp = 100, light spp = 30

is it probability? so in case 1 it may lead to 2.2 light samples per 1
camera sample "may be 2 or 3 depending on random number" , or how it works.

I'm creating an exporter and need to give the user this "hidden" feature
per light.

cheers,
Mohamed Sakr
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