LYGIA, it's a granular and multi-language (GLSL, HLSL, WGSL, MSL, etc.
Android GPU Inspector
A modern cross-platform low-level graphics library
aka ogre v2 - scene-oriented, flexible 3D C++ engine
A modern cross-platform low-level graphics API
3D GPUs Strange Attractors and Hypercomplex Fractals explorer
3D Procedural Game Engine Using OpenGL
Main repository for Vispy
A modular Common Lisp game engine
Safe and portable GPU abstraction in Rust, implementing WebGPU API
Zig game engine & graphics toolkit
A free and open-source Touhou Project fangame
Qt-based Nintendo Entertaiment System emulator and NSF/NSF2/NSFe Music
Console-based GLSL Sandbox for 2D/3D shaders shaders
Collaborative programmable music
Python+Numpy+OpenGL, scalable and beautiful scientific visualization
C64/Amiga emulator with shader and runAhead
crossplatform multithreaded object-oriented render and audio engine
Tiny OpenGL Wrapper / 3D Engine in C++
An Android library that provides views using openGL canvas
A toy physically based GPU path tracer (C++/OpenGL/GLSL)
A low-level, portable graphics library for .NET
Easily construct fragment shader graphs
applicatoin for windows like shadertoy.com
Lightweight Shaders for Intel HD Graphics - (Chocapic13' Shaders edit)