Achieving micro reflections

[moony]

There was a whole thread on this very subject:

Micro/angle dependent Roughness & Iridescence

I have created this thread to discuss and further develop the “micro roughness” effect - whereby the apparent roughness of a semi-glossy material falls off at grazing angles - thereby making reflections sharper. I have already created a node group to simulate this effect and a BDRF solution to this effect has also been described in a siggraph paper - both linked below. These two images show an arc vis scene from Blendswap both without (top image) and with (bottom image) the effect active. …