Left material is reflective, 0.1, and refractive, ior of 1.5, middle is 2.0 ior, right is 2.4 ior

Nice reflection scene

Turns out, the part that looked different was because of Fresnel reflections! Added those and all it working well.

Refraction! I notice that there are some very subtle differences between the supplied example and my refraction. Maybe the res is too low on the example to truly see though

With 100 max bounces, the result is mostly the same as the other giga-reflective one

Make it all reflective :D Rendered in 2766ms 16 threads, 5 max bounces

Reflections working : Rendered at 720p in 689ms with 16 threads