PyShaderPlayground is a simple tool for editing GLSL fragment shaders and instantly testing them in an OpenGL window. There're few predefined uniforms, like image resolution or running time. The names of those are made to be compatible with ShaderToy. The editor has a simple syntax highlighting.

It also has offscreen rendering implemented, to render high resolution images, also it's capable of rendering an animation of a given resolution, fps and length. It's utilizing ffmpeg for that task.

PyShaderPlayground is written in Python 3.12 and Qt (PySide6).

• Python 3.12.6
• PySide6 6.7.3
• PyOpenGL 3.1.7
• scipy 1.14.1
• matplotlib 3.9.2
• scikit-image 0.24.0

There're also some Visual Code files included (launch.json and tasks.json)

There's a possibility to use PyInstaller to create a standalone application, outside of Python environment (also for Windows). There's a proper spec file included, which defines all needed things in order to achieve that. Just run:

pyinstaller --clean PyShaderPlayground.spec

or use predefined task in Visual Code.