I’ve looked through a few tutorials on using yafray, I finally figured out what I was doing wrong in my rendering. I’ve even gotten one item to come out looking reasonably like glass. (after beating my head against the desk for a while, that is)
I think my main question now is in how to step through the process of getting a good render out of yafray.
Example, I want to draw a wooden box, holding a glass cube, light coming in from the upper right of the frame. I can get the basic shapes in place, the materials, color, set my lighting, and render in Blender internal. Things look acceptable for a test. Flip settings to yafray and render, 10 minutes later I see that all the colors are not even close to what I want. (Well, exaggeration a bit, but in larger size/quality it does take a significant amount of time)
So, is there a rule-of-thumb guide out here somewhere for an eager newbie? Or is it magic, which I shall learn in time young grasshopper?
Yafray’s glass and refractions are made using the Ray or Z-buffer transparencies, as well as Alpha, so try that. And also be sure to use a photon light to simulate caustics (which is the light rays going through the glass and lighting the table in all of those peculiar ways, in case you didn;t already know…)