I did a model of our new building and took light readings 'LUX' on a grid to see where we need to add solar tubes/ skylights.

I would like to visually depict the data I gathered.  I don't mean for realistic view just say if started with a (0%) dark gray background  and increased the light corresponding to the data in that location (100% being white) just for quick visual reference on a DRW.  Also i would need to adjust the spread/ area the light covers.

Thanks for any help