Hi, is it posible to get any information about lighting in choosen point? Like how strongly the point is illuminated. Alternativly can I check if the point is ilumintted by light source.
I can workaround it by casting ray from light source to choosen point, and calculate light ilumination from distance, but maybe there is a better way.

You'd have to calculate this manually.
If you need shadows then you'd also have to do ray casting for potential shadow casting objects.