Diamond or Gem with Refractions

This material is informed by the work of Jeff Patton.

Material

Unhide Lume if you need to.

Convert to mr Area light

add something to reflect in the environment

add fg

a different hdr in the environ

Increase transparency from .255 to .5

Increase IOR

here is an improvement on the caustics on the floor ...

diffuse is .85

logarithmic is on

In this alternative we turn of the logarithmic control and add a light shader

 

Dielectric mat on the diamond

add a light shader

 

turn off logarithmic

 

Another version:

All the reflectors, floor, etc are now the same DGS

turning down energy, etc:

with color in the dgs light of persistence and GI