Substrate Light Reflectance - Unreal Substrate

Uploaded August 2026 | Updated September 2026, 2 weeks ago

In this tutorial, I explain the Diffuse Albedo, F0, and F90 input parameters in Unreal's Substrate. I also show how to translate Base Color, Metallic, and Specular parameters from the previous system into Substrate, and I explain core principles like reflectance and the Fresnel Effect.

Here's the playlist for the whole series:
youtube.com/playlist?list=PLRgv-tDhpjYQ

Shader Book Recommendations
bencloward.com/resources_books.shtml

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Theme Music
Peace in the Circuitry - Glitch Hop
teknoaxe.com/Link_Code_3.php?q=1526

Background Music
Speo - The Little Things
youtube.com/watch?v=aoc9v_TRBqc

#UnrealEngine #Substrate

Substrate Light Reflectance - Unreal Substrate - Episode 2

Moving, Rotating, and Scaling UVs - Shader Graph Basics - Episode 43

Rain Effects On Terrain - Terrain Shaders - Episode 18

Subsurface Scattering - Advanced Materials - Episode 8

Advanced Detail Mapping - Shader Graph Basics - Episode 14

Random UV Transforms - Shader Graph Basics - Episode 44

Iridescent Bubble Shader - Advanced Materials - Episode 19

Blur and Sharpen Filter - Shader Graph Basics - Episode 51

Adding Terrain Detail Meshes - Terrain Shaders - Episode 12

Fabric Shaders - Advanced Materials - Episode 10

Adding Multiple Detail Meshes to Landscapes - Procedural Content Generation (PCG) - Episode 4

LatLong Projection - Shader Graph Basics - Episode 32