Liquid Shader for Splines (3D)

This 3D Splines Liquid Shader lets you draw fully customizable liquids in any shape directly with Unity Splines.

Create lava rivers, water pools, acid pits, poison streams, blood pools, molten metal, magic liquids, and so much more, without relying on rectangular planes or fixed meshes.

Designed for Unity 6.0+ URP, this shader turns 3D Sprite Shapes into animated liquid surfaces with flowing textures, rolling waves, fine ripples, emission, normal maps, and floating patches for simulating foam and crust.

Best used for rivers, lakes, streams, pools, seas, or any liquid body in a 3D scene.

Key Features
- Draw liquid in any shape using Unity Splines
- 13 ready-made liquid presets with materials, textures, and demo scenes - lava, water, acid, slime, blood, honey, oil/tar, mud, poison, radioactive waste, molten metal, alien liquid, and magic liquid.
- Flow direction and speed controls
- Animated waves and ripples
- Customizable foam, crust, and patch effects
- HDR emission
- Normal map support for richer lighting
- Vertical offset control for sinking or raising the liquid surface
- Custom Geometry Creator for smooth vertex displacement
- Quick Liquid Setup component for fast editing with only a few intuitive controls
- Support for static meshes

BONUS: The Shader Graph Subgraph asset included in this pack is a reconstructed standard lit shader. It can be imported into your own custom Shader Graph shaders, allowing you to both create custom shader effects and keep the standard shader options such as normal maps, emission, etc.