Author Topic: VRAY- disable fresnel for raw metals?  (Read 497 times)

I have seen several tutorials on metal rendering in VRAY which suggests disabling fresnel for metal, as metal fresnel calculations are more complex than ordinary dielectric ones.

For most physically accurate scenario, if I export Substance Painter maps to VRAY, should I for example export metal mask and use that somehow to trick the shader to disable fresnel for metallic parts(and perhaps use more advanced OSL version for that)?

I'm just experimenting with this too - I'm no expert on this, but using VRay in Modo, I've found I have to untick 'Lock Fresnel IOR' but leave Fresnel selection, and then the IOR map that I've exported from Substance can work correctly.