When Facebook’s Oculus unit revealed a in May, one of its signature features was a “varifocal” display system that actually moved the screens inside to mimic focus changes in the user’s eyes. Now the company has , the software rendering system used to power the varifocus feature, along with an interesting announcement: DeepFocus’ code and data are being open-sourced so researchers can learn how it works, and possibly improve it.

While the details of DeepFocus

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