I would like to introduce CGrass, which generates 3D grass images from GitHub Contributions. You can place the generated images in your Github Profile. CGrass runs on Github actions, so all you have to do is add a workflow and rewrite the README a bit.

↓ You can see the repository of this project at the following link

nrysk / cgrass

Contribution to 3D Grass

English | 日本語

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CGrass

CGrass is a GitHub contribution image generator that can integrate with GitHub Actions. It allows you to generate a 3D image of your GitHub contributions and set it in your profile README.

Getting Started

GitHub Actions

Copy the following code to your .github/workflows/cgrass.yml file in your profile repository.

name: Generate Picture and Push to output branch
on:
    push:
        branches:
            - main
    schedule:
        - cron: '0 0 * * *' # any time you want
    
permissions:
    contents: write

jobs:
    generate:
        runs-on: ubuntu-24.04

        steps:
          - name: Checkout
            uses: actions/checkout@v4

          - name: Generate Picture
            uses: nrysk/cgrass@v1.0.0
            with:
                github_username: ${{ github.repository_owner }}
                github_token: ${{ secrets.GITHUB_TOKEN }}
                output_path: output/output.png
                command: "theme"
                argument: "github

…

View on GitHub

How to Use CGrass

1. Create a Profile Page

Create a repository with the same name as your GitHub username.
If your GitHub username is nrysk, create a repository named nrysk.

2. Set Up the Workflow

Create a file named .github/workflows/cgrass.yml.

name: Generate Picture and Push to output branch

on:
    push:
        branches:
            - main
    schedule:
        - cron: '0 0 * * *' # Adjust the time as desired

permissions:
    contents: write

jobs:
    generate:
        runs-on: ubuntu-24.04

        steps:
          - name: Checkout
            uses: actions/checkout@v4

          - name: Generate Picture
            uses: nrysk/cgrass@v1.0.0
            with:
                github_username: ${{ github.repository_owner }}
                github_token: ${{ secrets.GITHUB_TOKEN }}
                output_path: output/output.png
                command: "theme"
                argument: "github"

          - name: Push output image to output branch
            uses: crazy-max/ghaction-github-pages@v4
            with:
                target_branch: output
                build_dir: output
                commit_message: "Generate Output Image"
            env:
                GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

When you push (or Commit on GitHub), GitHub Actions will run. Once the Action completes, the generated image will be saved in the output branch.
If it encounters a segmentation fault, please rerun it.

3. Change the Theme

You can switch themes by modifying the string in the argument field.
I prepared 4 themes: github, github-nograss, planet, planet-nograss.

  - name: Generate Picture
    uses: nrysk/cgrass@v1.0.0
    with:
        github_username: ${{ github.repository_owner }}
        github_token: ${{ secrets.GITHUB_TOKEN }}
        output_path: output/output.png
        command: "theme"
        argument: "github" # Change this part

github

github-nograss

planet

planet-nograss

4. Add the Image to Your Profile

To display the image in your profile’s README.md, add the following line and Replace <username> with your GitHub username.

![Contribution to Grass](https://raw.githubusercontent.com/<username>/<username>/refs/heads/output/output.png)

(Optional)

You can use a custom theme by creating a theme file. For more details, please refer to CGrass.

Thank you for reading

Blog

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