I’ve just started rebuilding my metal materials and thought I would get some of your opinions along the way. I’ll be happy to post the final results.
This batch is mostly the polished and glossy versions. I wanted to get the basics done before fiddling with brushed and aged versions. I didn’t use reflection fall-off for this version. Only tinted reflections
Yes. “Aged” is very subjective. Too many variable to take into consideration. By Aged I mean it’s not brand new and has less reflection. Like copper handrails that have had lots of sweaty palms adding just a little tarnish. I guess I was intending these to be used mostly for interior/new construction. I wanted these to be simple fire and forget materials that didn’t need mapping coordinates.
I suppose I’ll need to add another category for Patina. Really aged and weathered exterior metals. Then I’ll have to start using texture maps or maybe procedurals.
I thought this was interesting. A comparison of different BRDF’s and glossiness values for the glossy metal versions.
Same glossiness value, different BRDF
Different glossiness value, different BRDF. This produces a similar fuzz factor between the different BRDF’s.
Originally I was going to use Ward for the glossy metals because it produces a nice satin type finish, but then I remembered this post on the use of BRDF’s. So I guess I’ll switch my shaders and use Phong for the glossy and Ward for the polished. Here are some Phong samples with different glossiness values. I think I’ll go with .5, not quite as focused as .7 and not as fuzzy as .4.
That’s not how I understand that thread; it sounds to me like it’s agreed that Ward is best for brushed metal. I don’t see any difference in practice among the BRDFs when gloss is set to 1. I find Ward to be wayyyy better at satin metal than the others, but it’s only really apparent on a big surface like a sink. I couldn’t get phong or blinn to look good at all, but Ward did what I wanted.
Only comment I could make that hasnt been mentioned is I remember corten steel being made to intentionally rust. Looks really cool when rusted. Maybee they have a variety of metal finishes and te rusted look is just one of them (I havnt seen anyone here use it since uni )
i like the blinn glossies at 0.7 the best as it seems like a good compromise. ward is just too dulled out. I think you need to crank up the settings a bit though to remove the grain on the glossies