I want to know the answer to the following question:
What does UGR stand for?
All the background I'm provided with is that "In addition to these new methods, four main factors influence the degree of discomfort glare; the luminance of the glare source, the solid angle of the glare source, the background luminance, and the position of the glare source in the field of view must all be taken into account.". Is that enough to answer the question?
Answer: no