Uploaded September 2021 | Updated September 2026, 2 weeks ago

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In this shader tutorial, we take a look at the Smoothstep node in Unreal5 and Unity3d. First, I go over the math formulas that smoothstep uses. Then I show the basics of what it does, and finally, I show 2 examples of how to use it in a shader.

Here's a link to the graphing calculator I used to show the smoothstep formulas:
desmos.com/calculator

Here's last week's video on advanced detail mapping:
youtu.be/avZ26yW2KBw

And here's the playlist for the whole series:
youtube.com/playlist?list=PL78XDi0TS4lEBWa2Hpzg2SRC5njCcKydl

Learn more!
youtube.com/watch?v=60VoL-F-jIQ
youtube.com/watch?v=MYFXfLFrUcA

Resources on the web:
docs.unity3d.com/Packages/com.unity.shadergraph@10.0/manual/Smoothstep-Node.html
thebookofshaders.com/glossary/?search=smoothstep

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 #shadergraph #smoothstep