Uploaded October 2020 | Updated September 2026, 2 weeks ago

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✔️ Works in 2020.1 ➕ 2020.2 ➕ 2020.3
🩹 Fixes:
► Make sure your source mesh has read/write enabled in it's asset importer inspector.

Grass is a tough thing to make in games! In this series of videos, I am looking at a variety of ways to tackle it in Unity Universal Render Pipeline. This video shows one strategy of layering several noise textures to clip planes created by a geometry shader, creating depth.

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🎬 Previous videos
► Grass in shader graph: youtu.be/JDpt9xYaUYc
► Introduction to geometry shaders: youtu.be/7C-mA08mp8o

✨Follow up videos
► Compute shader grass: youtu.be/c1JThTu6-Ok

📜 Required scripts
► NMGGrassLayersHelpers.hlsl: gist.github.com/NedMakesGames/7dc307df5aba5626f3e2789497937e8b

📚 Reference scripts
► GrassLayers.shader: gist.github.com/NedMakesGames/1e86d3827a6441a498905359bc20a26a
► GrassLayers.hlsl: gist.github.com/NedMakesGames/880ab6aadbaed95de2cabba8b67c410a

⏲️ Timestamps:
0:00 Intro
0:37 Project setup
1:13 Simple shader
3:20 Extruding layers
4:56 Clipping with noise
6:34 Wind
7:34 Shadows
8:35 Wrap up and credits

🎖️ Credits and references:
• Shahriar Shahrabi: grass examples - medium.com/@shahriyarshahrabi/volumetric-grass-shader-28ebb9f6860b
• Brute Force Games: grass examples - bruteforce-games.com/post/grass-shader-devblog-04
• CJT-Jackton: geometry shader examples - github.com/CJT-Jackton/URP-Geometry-Shader-Example
• Rolemusic: music "The Little Broth" - freemusicarchive.org/music/Rolemusic/The_Black_Dot/09_rolemusic_-_the_little_broth

#GameDev #IndieDev #Unity