Uploaded March 2024 | Updated September 2026, 2 weeks ago

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In order to create a particle system shader in Unreal and Unity, we need each particle plane to have a set of random values. In this video, I show you how to use the particle stack's grayscale vertex colors to generate a random vector3 for each of the particle planes. Later in the series, we're going to use these values to give unique position, rotation, and scale to each particle.

For the Unity version, here's the code for the hash function we create:

bencloward.com/hashcode.txt

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Here's last week's tutorial that shows how to make all of the particle planes face the camera:
youtu.be/HD_V7R2da00

Here's the playlist for all of the videos in the series:
youtube.com/playlist?list=PL78XDi0TS4lGMPYs24UZQ3Ox_fU_xsgZS

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 - Reminiscent
youtube.com/watch?v=2NGPW61HBf4

#UnrealEngine #shadergraph #Unity