Create Interactive 2D Water From Scratch (Unity Tutorial)
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I had......SO much fun working on this project... Despite having to completely scrap my first approach!
We're going to use a mesh we create from scratch and move the vertices in wave patterns when your player (or any Rigidbody object you want) interacts with the water. I was inspired by Ori and the Blind Forest to try this out, and I'm super happy with the end result!
This is...kind of a monster video, I realize. I went overboard. But I wanted to make this as good as I could. So here's what we're going to cover:
- Creating a mesh from scratch
- Custom editor scripts (for buttons and some custom handles to resize the water
- Creating a sprite shader for the mesh (includes and edge line, caustics, distortion, and vertex displacement)
- Wave propogation (ie make waves when your player hits the water's edge)
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Timestamps:
00:00 - Introduction
00:24 - Explanation of why we're using a mesh
01:51 - Creating the mesh
06:07 - Custom editor (for buttons and handles)
08:56 - Creating the main color and wave lines (shadergraph)
11:33 - Adding caustics for the water (shadergraph)
13:49 - Adding distortion for the water (shadergraph)
16:17 - Setting up the CameraSortingLayerTexture and sorting layers for the distortion
17:57 - Adding constant waves via vertex displacement (shadergraph)
21:11 - Setting up the interactive 2D water functions
26:00 - Setting up the trigger handling for the water
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free water assets used (moss) :
2D water math breakdown:
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