1.0 What It Actually Does
Reflection Debug is a combined reflection elements into one debug mode, allows for reading Metallic, Roughness, Specular all at the same time, while using the switches to switch visualization to Roughness, Metallic, Specular, each have their own Ramp
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Specular
Since the Standard dielectric Specular F0 ranges from 0.04 to 0.08 (4% to 8%), & Metallic is 0.5 - 1.0 (50% to 100%) F0, based on the PBR standards. Metallic physically overrides Specular. For example, if both are set to 1.0, the Specular input has no effect because the surface is fully metallic. DrDebug flags this, if you have metallic surfaces in your scene, they will show up Orange in the Specular Debug view.
