Odd refraction / reflection C4D Octane

[anothercraigis]

Hi Guys,
Any idea why I might be getting this anomaly? I seem to get black areas under my glass textures ... any ideas?

Also, now sure if this is related... but whenever I use glass textures I seam to lose any / all colour in the model behind it - very odd.

Cheers
Craig

[bepeg4d]

Hi,
increase the specular depth in the kernel setting, or even better change it from DL to PT or PMC
ciao beppe