Refraction environment override

[dlparisi]

The refr override is set to red. Put a random hdri in the refl override and you will see that the sphere refracts the red environment, behind the plane.

I think you misunderstood me. Put a map in the plane material's "Environment" slot, not the Render Setup's Reflection Environment Override slot. Leave the refraction Environment Override as red (or whatever else you want).

[fAEkE]

I know, the question is, why does refraction environment override work like this?

[dlparisi]

I thought Vlado already answered that..."Once a ray goes through refractions, it will always use the refraction environment override (as opposed to just looking at the type of the last ray). This explains your results."

[fAEkE]

He answered how it works, not why it works that way