Hi Daniel!

First off, the shader works great! It really is the only one of its type available that feels authentic.

Is it possible to add two enhancements/variables into the shader somewhere down the line? Obviously only if you're still working on the asset.

1) Reflection Mask Texture Slot: Is it possible to add a slot for a black and white texture, used to designate which parts of the material receive the cubemap reflections? White is reflective, black non-reflective.

2) Mip-Map Support Variable: Can you add a bool variable in the shader to enable/disable mip-map support? 

Again, great shader! These are mostly wishful on my part, and only if possible, not sure how difficult it would be to add these two.

Thanks either way, it's good work!

Regards