Hello bagginsbill. I bought a product that was a set of shaders to do both an empty glass and solid glass etc. but it just renders black even though I have raytracing etc. The materials room transparency and refraction wacro that come with Poser are what I have been using instead and they do work but I am hoping you could give some advise on making these materials better. Mainly I am wanting good shaders for window glass in scenes and also for eye glasses glass. Can you explain how the refraction works and how it should be used for these effects please? Also say for a pool of water in which someone is standing? I am somewhat confused by how the refraction shader interacts with transparency and reflection and diffuse in a material and your help would be very much appreciated by me and others too I am sure. I also want to get reflections on shiny floors that are not so mirror-like but that fade or scatter as the reflection is more distant from the source. I understand of course if you don't have time and maybe someone else can help if you are too busy which is why I am not IMing you..