VrayMTL: Unlocked Fresnel IOR is still affected by Refraction IOR

[LudvikKoutny]

Hi,

I've discovered something quite strange. I have always assumed that as soon as I unlock Fresnel IOR from Refraction IOR (by clicking the little L button), the Refraction IOR will only affect refraction component. However, it appears that once they are unlocked, Fresnel IOR is still affected by Refraction IOR. What's even more weird is that while Fresnel IOR after unlock seems to affect general reflectivity, the Refraction IOR seems to somehow affect only the (glossy) Fresnel component of the reflection, while the naming of the parameters would imply it the other way around, it if was by design.

A short video of the issue: https://www.youtube.com/watch?v=M3Z9c_ndelo

[vlado]

Yes, I know about it; it was originally done so that total internal reflections work correctly. I plan to revisit this soon.

Best regards,
Vlado

[LudvikKoutny]

Yes, I know about it; it was originally done so that total internal reflections work correctly. I plan to revisit this soon.

Best regards,
Vlado

Good to know. This leaves a huge room for error