Maxwell Render | Official public forum

Anyone have any idea where to get an ior file for Tin? I've tried searching with no luck. I'd love to round out my alchemist's lab!

I'm looking to make a proper bronze. btw, I posted this in the wishlist too.

from wikipedia:

There are many different bronze alloys, but typically modern bronze is 88% copper and 12% tin

Google search for "IOR bronze" reveals this : http://forums.cgsociety.org/archive/ind ... 13458.html

btw.: you cannot simply calculate the IOR of bronze from the IORs of tin and copper

Ah, thanks, but I'm looking for the complex IOR.

I think you can make a multi bdsf with the complex ior files in the correct proportion and you get a physically accurate result. Maybe I'm wrong. Anybody know for sure?

It won't really work for alloys, because the alloy will have its own reflectance characteristics.

See http://www.filmetrics.com/refractive-in ... ase/Sn/Tin where you can also obtain refractive indices and extinction coefficients for many other materials such as plastics or natural materials, often needed in industrial design.

I consider myself a purist but for me when it comes to creating realistic and believable metals in maxwell the ior files are best used as a starting point.
Roughness, anisotropy and texture play such a large part in how the material is percieved that subtleties in ior are lost in the resulting image.
I like the ior bank that maxwell provides but I am never completely satisfied because I almost never render metals in lab conditions
I guess it depends on your project though...

Blimey! One hell of a good render. That tossed cig-butt... so subtle!

Blimey doesn't cover the half of it...

Thanks all for all the responses. Too bad, I hoped I could just mix metals and get what I was looking for. Back to the lab!