Before going ahead and starting work on the skylight, however, this would seem like a good time for us to go back and consult the lighting definition that we have written for the scene and see if we can get a sense of what we may want or need our skylight to do. The problem we have of course is that I didn't really add anything to the definition that specifically outlined the type of fill or skylight required.

Could we go ahead and do that now even though we are well under way with our lighting creation? Well the simple answer is yes, we should never feel that it is too late to improve any of the scene definitions that we create. If we get to a point in our project where we realize that our blueprint is missing even a single piece of information, something we feel would be useful to us, taking the time out to add it in can only be beneficial in the long run.

We do have a bit of a starting point in that our current definition mentions that we wanted the occlusion shadows...