Welcome to the signed distance fields repo. This contains the sample code for the signed distance field series at https://shaderfun.com/.

Whilst the repo is focussed on the blog, it is designed to be a simple toolkit for generating and rendering signed distance fields. Currently it is focussed on 2D fields, and supports:

• Rendering a field texture on screen using a variety of different demo algorithms
• Generating a distance field from explicit primitives such as circles, lines, rectangles
• Generating a distance field from an image, with simple handling for anti aliased images
• Sweeping a field using either 8PSSDT sweep or a brute force eikonal algorithm
• Downsampling
• Softening

Effects in the demo so far:

• Simple visualisation of the field
• Creating soft borders to avoid aliasing
• Edging effects such as gradients or neon glows
• Drop shadows
• Morphing between fields

Enjoy!