What are the main limitations of OpenGL for VR development?

OpenGL can drive a basic VR prototype, but it lacks the explicit thread and memory control that headset-class frame rates need. Meta's own Horizon OS documentation now lists OpenGL ES as a legacy path for Quest development, with new headset features shipping in Vulkan only.

When does OpenGL still work for VR?

OpenGL fits early prototyping, research demos, and internal tools where hitting a locked 90 frames per second is not the goal. A team testing an interaction idea or a visualization before committing to a full render pipeline can build it in OpenGL and reuse existing code, shaders, and libraries from non-VR projects. Oculus Go, Meta's first standalone headset, launched in 2018 running only on OpenGL ES, before Vulkan support was added the following year.

When does OpenGL fall short for VR?

VR rendering needs two views per frame, tight CPU-to-GPU coordination, and headroom for reprojection techniques that hide dropped frames. OpenGL's driver-managed threading model creates CPU overhead that eats into that budget, since the specification does not require multi-threaded command submission the way Vulkan does. On Meta Quest headsets specifically, features like App Spacewarp, Mobile Multi-View, Late Latching, and hardware-accelerated foveated rendering all require Vulkan and are unavailable to an OpenGL ES renderer.

What should a team building for VR do in practice?

New VR projects on Quest or similar standalone headsets should start on Vulkan rather than porting an OpenGL renderer later, since several performance features only exist on that path. Teams with an existing OpenGL codebase can still ship on it while budgeting time for a Vulkan migration once frame timing or battery life becomes a problem. OpenXR, the cross-vendor VR standard Khronos released in 2019, supports OpenGL as one of several rendering backends, so switching graphics APIs later does not require abandoning an existing OpenXR integration.