Palmer Luckey, the founder of VR firm Oculus, has left Facebook, with the company giving no details about what Luckey planned to do next.
Palmer Luckey was associated with the rise to prominence of Oculus and its VR headset which finally went on sale in early 2016. His departure caps a troubled period for Oculus which lost a $500m court case against media firm Zenimax which said it stole trade secrets. The court case was partly brought about because Zenimax accused Luckey of violating a non-disclosure agreement he signed with the firm in 2014.
Palmer also became a controversial figure last year when it emerged that he had partly bankrolled a group behind a social media campaign helping Donald Trump's presidential bid.
As founder and major shareholder of Oculus, Mr Luckey received a significant payout when Facebook bought the company in 2014 for $2bn.