Voronoi-based Lava in Unity Shader Graph

Publié le: 20 juin 2023
sur la chaîne: Daniel Ilett

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Voronoi diagrams are great for modelling natural shapes like biological cells, and they also excel at creating lava that flows between chunks of rock. Shader Graph's built-in Voronoi node doesn't provide enough information about the edges of the 'cells', so we'll have to write custom code, which I'm basing on Inigo Quilez's great examples. With a custom function node, we can then build a customizable lava effect with different textures, thicknesses, and most importantly, wiggle.

I'm using Unity 2022.3.0f1, although this technique will work in previous (and presumably subsequent) versions of Unity.
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👇 Download the project on GitHub: https://github.com/daniel-ilett/shade...

📰 Read this tutorial in article format instead: https://danielilett.com/2023-06-20-tu...

🌐 Read Inigo's article about Voronoi edges: https://iquilezles.org/articles/voron...
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🌐 AmbientCG Textures: https://ambientcg.com/view?id=Rock028 and https://ambientcg.com/view?id=Lava004
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00:00 Intro
00:34 The Voronoi Function
02:15 CustomVoronoi.hlsl
04:28 Custom Functions
05:18 Rock Islands
07:11 Lava Wiggle
08:38 Rock Colors
09:37 Lava Colors
10:43 Rock Normals
11:49 Lava Material
12:07 Outro

#gamedev #shaders #madewithunity

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