Thanks for your help! I've been studying the 2007 Material Editor tutorial and I understand that a material should not reflect more light that it receives. So I can setup a basic reflective material with two layers, and fresnel ramp and weighting.
But these multiple layered translucent materials are way above me. The project I'm working on includes a lot of frosted glazing, plexi-glass, with most all of them being internally illuminated.
1. Did you add the translucency to the layer with the Transmittance?
2. Do I change the color of the material by changing Absorption?
3. When I change a setting, it takes forever for the material to render, is this normal? I changed The Global settings of the scene to Volume Lighting and it appeared to stop rendering the preview in the Material editor.
4. Is there a tutorial or could you help me understand why it is beneficial to separate the layers this way? For example why keep specular and transmitted in a layered material?