Rendering macOS in Virtual Reality (oskargroth.com)

A developer shared insights from their journey of rendering macOS in virtual reality (VR) between 2015 and 2019. This project evolved from a VR desktop application designed for the Oculus DK2 into a comprehensive SteamVR framework, which facilitated the development of virtual displays that only exist in VR. By utilizing Swift, SceneKit, and Apple's IOSurface for zero-copy screen capture, they optimized performance, enabling high-resolution displays in VR environments without the need for physical monitors. This was achieved through innovative techniques like stereo rendering, kernel extensions for virtual display drivers, and advanced synchronization with display refresh rates. The significance of this work lies in its pioneering contribution to macOS VR development at a time when resources were scarce, providing foundational knowledge that may influence future spatial computing efforts, especially with Apple's renewed interest in VR through Vision Pro. The culmination of this experience showcases the challenges of adapting to rapidly changing technology platforms and the importance of building robust solutions amid uncertainty. While the developer's project never reached commercial viability, it offered valuable lessons on graphics programming, platform reliability, and the need to innovate within an evolving ecosystem. The full source code is available for educational purposes, allowing others to learn and build upon their findings.