Got a PM question about the glass casting a shadow problem. For thick glass we have no solution. For thin glass, which has no significant refraction anyway, we can use transparency instead. This is great for windows, eye glasses, etc.

Here's how to wire it up with Fresnel_Blend.

It's VERY important that you plug the Reflect node into Alternate_Diffuse, and not into Reflection_Color. The Poser Surface node does old-school incorrect math with Reflection_Color channel data and transparency. It does not attempt any such bull-sh** with the Alternate_Diffuse data.

The correct math is in Fresnel_Blend. That's what we want it to use.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)