reflectance value to in a V-ray material? Needs to be accurate

V-Ray V-Ray for 3ds Max General
1

Client has requested a specific type of roofing iron, http://www.nze.co.nz/colour\_swatch\_library/colorcote\_basic.php

How would I go about simulating the reflectance values listed on these colours in V-ray? In this case, eyeballing it isn’t going to be good enough apparently.

Cheers!

2

they appear to be percentages

3

id just use my eyes

4

This you may find useful, http://aucache.autodesk.com/au2009/sessions/4934/AU\_2009-DV214-2-Capturing-and-Acquiring-Appearances-of-Real-World-Materials-for-Improved-Accuracy-in-Renderings.pdf

5

That’s veeeeery useful chicoone - much appreciated.

6

Yeah, that’s a great write-up! Hadn’t seen it before - thanks for posting!