Download Oculus and its dependency, Embeddium (or Rubidium). Place the .jar files in your .minecraft/mods folder.

For true path tracing in VR, one must look outside Minecraft entirely—to games like Half-Life: Alyx or Cyberpunk 2077 with VR mods—as Minecraft’s Java Edition engine lacks the native Vulkan ray tracing extensions required for efficient PTGI in VR.