Comments on: The Problem with Specular Maps… http://julius-ihle.de/?p=2653 LookDev/Lighting TD | Compositor Sat, 21 Oct 2023 10:29:53 +0000 hourly 1 https://wordpress.org/?v=4.1.41 By: Julius http://julius-ihle.de/?p=2653#comment-231 Thu, 27 Dec 2018 21:17:23 +0000 http://julius-ihle.de/?p=2653#comment-231 Hi,

Depends on what renderer you use and how it treats roughness values. Generally a norm mid-gray diffuse albedo is around 0.18 usually. On top of that I usually use a spec albedo of 1 with an IOR of something like 1.45ish and a pretty high roughness of around 0.5.

Below are some examples with using these values. Is this something you are getting, too?
interior
exterior

cheers,
Julius

]]> By: Yc http://julius-ihle.de/?p=2653#comment-230 Wed, 26 Dec 2018 23:10:49 +0000 http://julius-ihle.de/?p=2653#comment-230 Hi, it is a very helpful read! and I have a question. What cause the problem that my specular is too bright, but the IOR is already low enough? For example, for a grey ball, If I want to make it to be physically accurate, what IOR. roughness and diffuse value should I set it to? Thank you!

]]> By: Jason Huang http://julius-ihle.de/?p=2653#comment-229 Mon, 10 Dec 2018 22:14:03 +0000 http://julius-ihle.de/?p=2653#comment-229 Great write-up, Julius. Thanks!

]]> By: Kristijan http://julius-ihle.de/?p=2653#comment-218 Thu, 01 Nov 2018 08:33:31 +0000 http://julius-ihle.de/?p=2653#comment-218 Very interesting read!

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