Have a look at this file in raytraced mode.
_MrGlass.3dm (133.6 KB)
There is a cylinder with a cycles emissive material applied to it inside a conical “vase” with a Rhino glass material.
There are a few strange things going on.
- The cylinder is only visible through the glass, I can’t see any part of the material that sticks out beyond the glass. I assume that the material is acting like an invisible light source and is seen in its effects on other objects. OTOH I have seen blender videos where objects with emissive materials can be seen directly - they are glowing objects and aren’t “invisible”
- The rod’s brightness is related to its distance from the glass. The rod becomes darker the narrower the vase becomes.
I have a model that takes advantage of the second behavior and the effect is really good for what I’m trying to achieve.
there are some cases where I want to have glass closer to a light source AND I want the light source to shine through this glass without becoming too dim. I actually have an outer shell that’s far from the glowing object and a “glass” supporting structure that closely wraps part of the glowing structure.
For most of the time the distance effect works for me but sometimes it works against me.
So I think I need to understand what is going on so I can do whatever it takes to get the effects that I want.
I think that Nathan replaces Rhino glass with a hand crafted cycles xml material when we switch to raytraced. @nathanletwory is this what happens? Are the nodes you use available anywhere? (like GitHub??)
If so then I could explicitly assign cycles xml materials to my objects and play about with the materials to see what I can achieve.