https://github.com/ubisoft/Chroma

Chroma (developed by Ubisoft) is a one-stop solution for detecting color blindness-related issues in games. It replicates Protanopia, Deuteranopia, and Tritanopia filters over the game screen, helping users flag accessibility concerns in real-time.
https://github.com/ubisoft/Chroma

Last synced: 3 months ago
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Chroma (developed by Ubisoft) is a one-stop solution for detecting color blindness-related issues in games. It replicates Protanopia, Deuteranopia, and Tritanopia filters over the game screen, helping users flag accessibility concerns in real-time.

• Host: GitHub
• URL: https://github.com/ubisoft/Chroma
• Owner: ubisoft
• License: apache-2.0
• Created: 2025-03-25T08:37:07.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-11-21T12:54:41.000Z (7 months ago)
• Last Synced: 2026-01-27T20:12:30.842Z (4 months ago)
• Language: C
• Homepage:
• Size: 20.7 MB
• Stars: 940
• Watchers: 8
• Forks: 22
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: CODEOWNERS

Awesome Lists containing this project

README

          
# Chroma

**Chroma** helps in simulating different types of color blindness occurring in humans.

The main purpose of this is to simulate 3 major [Color Blindness](https://en.wikipedia.org/wiki/Color_blindness) types: _Protanopia_, _Deuteranopia_ and _Tritanopia_ for our different games and to aid the accessibility team in performing various complex testing.

Following are key features:

- Color simulation on a single monitor. This solution works on top of the game and can be maximized as per requirements.

- Works on all games. No dependency on any specific game or engine.

- High performance. Able to simulate live gameplay up to 60 FPS.

- Accurate results.

- Simulation of all types of color blindness.

- Only available solution which captures live gameplay screen and simulates colorblindness.

- Easy screenshots to log errors.

- Easy and configurable UI.

- For more details look into userguide [here](source/Userguide.pdf).

  

Here is an example comparing the default image with its Deuteranopia-filtered version:







Original Image:







![Ubisoft Chroma - Default View](https://github.com/user-attachments/assets/eb654cd7-7cbb-44f9-8816-6c863f321a82)







Filtered Image (Deuteranopia):







![Ubisoft Chroma - Deuteranopia View](https://github.com/user-attachments/assets/7a1af4ac-5a1f-45ca-a4ff-0c551861bac1)




**Download the official Chroma logos [here](assets/logos).**

## Known Issue During CMake Process

If you encounter the following error while running CMake without Visual Studio 2022:

```

error C2039: 'wait_for': is not a member of 'winrt::impl'

```

This issue may occur due to an outdated `CPPWinRT` library. To resolve it, install the `Microsoft.Windows.CppWinRT` NuGet package using the following command:

```sh

nuget install Microsoft.Windows.CppWinRT

```

Alternatively, ensure that your development environment is using an updated version of `CPPWinRT`. **The best option to avoid this issue is to use Visual Studio 2022.**