Derivatives DDX DDY - Shader Graph Basics - Episode 18

In this shader tutorial, I explain how the DDX and DDY nodes work and then I show three examples of how to use them in Unreal5 and Unity. I show how to use the DDX and DDY nodes to fix weird UV seams, generate face normals, and convert a bump map into a normal.

Here's last week's video on the Ceiling, Floor, and Round nodes:
   • Ceiling, Floor, & Round Nodes - Shader Gra...  

And here's the playlist for the whole series:
   • Shader Graph Basics  

Learn more!
   • Basics of Partial Derivative Shader Funcs ...  
   • Foliage Hiding Planes - UE4 Materials 101 ...  

Resources on the web:
http://www.aclockworkberry.com/shader...
https://gamedev.stackexchange.com/que...
https://thebookofshaders.com/glossary...

Shader Book Recommendations
https://www.bencloward.com/resources_...
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Theme Music
Peace in the Circuitry - Glitch Hop
http://teknoaxe.com/Link_Code_3.php?q...

Background Music
Speo - The Little Things
   • The Little Things  

#UnrealEngine #shadergraph #Unity