Blender 4.3 Deep Dive: Exploring Diffuse Roughness & Physical Conductor

In this video, we explore two new render features in Blender 4.3 dealing with improved physical accuracy. This is the new Oren-Nayar Diffuse Roughness slider in the Principled BSDF; and the new Metallic BSDF node that has a new Physical Conductor option for laboratory measured reflectance data of metals.

Here's a link to many physical metals using the Metallic BSDF in Physical Conductor mode: https://drive.google.com/file/d/1jnEwtAzEyUQi3dvL8K26thMqqazolD9s/view?usp=sharing

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00:00 Introduction
01:18 Energy conservation & preservation
02:00 Oren-Nayar diffuse roughness
03:44 Diffuse BSDF node in 4.2 vs 4.3
05:08 Basic diffuse roughness examples
10:56 Part II, Metallic BSDF & Physical Conductor
11:12 Basics of metals
12:28 F82 Tint mode
13:29 Physical Conductor mode