vray for rhino rendered glass white instead of clear

[Guest maymei]

Hi everyone,

 

 

I am rendering for my project and the glass have been rendering white instead of clear. I tried adding a reflection and refraction layer, a emissive layer, lowered the fog multiplier, brightened the fog color and changed the sun angel. But nothing worked. Also I applied a black generic material to the railing and they also turned out white. Are these two thing related to one problem? I would love to have clear glass render so the structure can show up. Thank you for helping!!