In many cases, we want to dither textures so that we can use the more compact texture RGBA4444 import format to save memory since it requires only 16bits per pixel. This project aims to provide a workflow for dithering imported texture automatically, based on settings that can be swapped easily. Note that this has nothing to do with using dithering to achieve some artistic goal or the real time dithering effect to solve color banding problem.
The algorithms are explained in a blog post by Tanner Helland and the reference implementations are taken from https://github.com/mcraiha/Dithering-Unity3d with some slight modification.
This is a part of UBootstrap series of libraries. To find out how to incorporate it into your project please see https://github.com/minhhh/UBootstrap. Alternatively, you can just copy the code from this repo directly.
To dither images, put them in a folder whose name ended with Dither. Then click on the folder and Reimport.
The dither settings, i.e. algorithm and output color space is defined in ScriptableObjects DitheringAlgorithmSetting. You can find them in the UBootstrap.TextureDithering/Plugins/TextureDithering folder. To change dither setting, select Settings > TextureDitherSetting and change the field Dither Algorithm Setting accordingly.
Supported algorithms are:
- Atkinson
- Burkes
- FloydSteinberg
- JarvisJudiceNinke
- Sierra
- SierraLite
- SierraTwoRow
- Stucki
- No Dithering (for testing purpose)
Supported color spaces are:
RGBA4444WebsafeTrueColor(for testing purpose)
All settings currently use RGBA4444New dither algorithms can be added easily. Please see the code in Assets/UBootstrap.TextureDithering/Plugins/TextureDithering for reference.
0.0.5
- Fix compilation error
0.0.4
- Rename to UBootstrap.TextureDithering and fix depdendencies
0.0.3
- Refactor ColorSpace to an enum
- Update readme
0.0.2
- Update readme
0.0.1
- Initial commit