the fact, that one strong field of vray is arch viz, and the hype of unbiased physical correctness nowadays, may consider to implement the the optics5 international glazing database into vray.
reflectance and transmittance for more than 1000 glazing products from manufacturers all over the world can be retrieved as radiance brtdfunc.
http://windows.lbl.gov/materials/optics5/default.htm
-oconv
Hi,
I thought of something similar, too. But there are many libraries out there that have brdf measurements. (Just do a google search and you will see.)
But I agree that some appearances can only be modeled with measurements. My favourite paper is this one:
Especially the videos are worth watching.
No offense guys… but this serves a specific grup of the Vray community. Granted it is a large one, but it is super specific. I don’t believe that it should be the responsibility of Chaos to add this as a feature. I would suggest that you find a shader writer that writes a shader based on the Vray SDK to write this.
or use the vray material to get what you want then create a plugin very much like egzglass etc and have a dropdown list of all the different materials you need
…and when you do that, post it hear for us.
I’d request a VR-Glass, VR-Water, VR-Wood, VR-Siding, VR-Paint, VR-Metal, etc. from anyone writing such code. 