Ion

Ion is a modular C++ toolkit for building high-performance 2D/3D graphics applications with a strong emphasis on portability, correctness, and developer ergonomics. Rather than a monolithic engine, it offers focused libraries—math, image, GPU resource management, shader utilities, remote inspection, and platform abstractions—that you can adopt à la carte. The rendering layer wraps modern OpenGL/OpenGL ES concepts with a carefully layered API that tracks object lifetimes, deduplicates resources, and enables safe multithreaded recording of draw calls. Asset utilities handle image formats, texture compression, and color management so pipelines can stay consistent across desktop and mobile GPUs. A “remote” subsystem exposes live application state for introspection and debugging, which is extremely useful when tuning performance on devices you can’t easily instrument. Across the stack, Ion emphasizes deterministic behavior, robust error checking in debug builds.