Simple SDF Library For Unreal Engine

This is a collection of Material Functions for Unreal Engine 5.3 and higher that generate dynamic Signed Distance Functions for 17 shapes.

Each Material Function returns four outputs:

There are 17 SDF Shapes that are dynamically editable at run-time, and can be fully customized for your use-case.

Included for each Material Function is the Shader Graph logic along with the HLSL in a Custom Node.

The scope of this pack is focused entirely on SDF shapes, and does not include other functions or utilities relevant to SDFs. I recommend using this in conjunction with Epics's UI Material Lab functions.

Each Material Function is based heavily on the work of Inigo Quilez. If you derive any use or knowledge from this asset pack, I encourage you to subscribe to his Patreon or send him a donation directly.

To install, copy the folder "SimpleSDFLibrary" into your project's "Content" folder (see included README file for more details).

This pack is also now available on the Fab Marketplace.


I heavily encourage users to do further reading on the subject of SDFs, as the subject is fascinating and educational for broader shader concepts:
- Inigo Quilez's work on 2D SDFs
- Joyrock's blogposts on 2D SDFs
- Ben Cloward's tutorial series on 2D SDFs and Procedural Shapes