PortableGL is a single-header, software-only implementation of a subset of OpenGL (specifically the GL 2.1 pipeline), designed to run entirely on the CPU. This lightweight graphics library allows OpenGL-style rendering without GPU acceleration, making it ideal for educational use, debugging, embedded systems, and retro-style software rendering. Because it mirrors OpenGL syntax and design, it can act as a drop-in CPU renderer for testing or deploying 3D graphics on platforms without GPU support.
Features
- CPU-based OpenGL 2.1-like rendering pipeline
- Single-header, zero-dependency implementation
- Supports vertex and fragment shaders written in C
- Emulates programmable pipeline with user-defined shaders
- Renders to raw memory buffers or SDL surfaces
- Includes matrix stack and transformation utilities
- Compatible with OpenGL-style vertex attributes and uniforms
- Designed for portability and minimalism
- Ideal for learning graphics programming or debugging
Project Samples
Categories
LibrariesLicense
MIT LicenseFollow PortableGL
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