Let there be some metallic flakes!
让我们来点儿金属烤漆效果~ 英文不好的同学就自己开google翻译吧 今天天冷 手冻木了不打字翻译了
It seems like CG artists always want to render cars, the amount of actual iray user scenes we get that are cars is remarkable. It’s like a fundamental constant of the universe. So if a renderer cannot do cars it’s useless for a German. Luckily iray is quite good at rendering cars… but of course there is always room for improvement.
For iray 2.0 we focused on the features of our internal material model a lot and it has become pretty powerful: it allows flexible layering of BSDFs. So creating a basic car paint becomes a relatively intuitive task. We start with diffuse base layer, mix in some glossy BRDF, and create a Fresnel-blended clearcoat layer on top of that, done, the simple carpaint is finished.