High-performance debug rendering library for .NET and OpenGL

Developed a high-performance debug rendering library for .NET, providing an immediate-mode API for drawing debug primitives in OpenGL-based 3D applications.

The library makes heavy use of modern C# and .NET features like Span, CollectionsMarshal, or ref structs to prevent runtime allocations and provide the best performance possible.

Features:

• Immediate-mode debug drawing API
• Modern OpenGL GPU-driven instanced rendering with minimal CPU overhead
• No runtime allocations during rendering
• Support for common 3D debug primitives: boxes, spheres, lines, cylinders, cones, capsules, arrows, and grids (wireframe and solid)
• Custom mesh registration support
• Backend implementations for OpenTK and Silk.NET (easy to extend to other OpenGL bindings)