PBR Maps

PBR has two main workflow options: Metalness and Specular.

Switching between workflows will change the workflow for ALL materials in the model.

Metalness

The channels specific to Metal/Roughness are Base Color, Metalness, and Specular F0.

• Base Color: an (s)RGB texture or solid color for reflected color (non-metals a.k.a. 'dielectrics') or reflectance values (metals)
• Metalness: a linear grayscale texture; black (0.0) for non-metal and white (1.0) for raw metal
• Specular F0: a linear grayscale texture for Fresnel values (non-metals)

Specular

The channels specific to Specular/Glossiness are Albedo and Specular.

• Albedo: an (s)RGB texture or solid color, without reflectance values
• Specular: an (s)RGB texture or solid color for reflectance values (metals, color) and F0 (non-metals, grayscale)