Place lens flare on a separate layer
I add lens flare for fun. This is kind of silly, but it’s something a lot of next-generation games are doing. Things like lens flares, reflections and dirty lens were elements that film makers used to hide. Now, especially in games, those elements are brought to the fore. Thus, as concept designers trying to match the look of the final product, we’re sometimes asked to introduce these elements. And they are fun to look at and very easy to add, but just put them on a layer – just in case!