At the conservative political action conference, Facebook's booth attracted people's attention for some wrong reasons.
The show's booth included presentations from Donald Trump and the NaTIonal Rifle AssociaTIon, showcasing several Oculus Rift demo kiosks and offering a variety of experiences. These include Bullet Train, a short demonstration of Robo Recall developer Epic Games, where players can play a film shootout with a team of soldiers at the train station. This work has often appeared in activities over the past few years.
However, considering that the show was held a week after the shooting at the Marjory Stoneman Douglas High School in Parkland, Florida, the existence of Bullet Train was inappropriate and The social media platform soon rebounded.
As a result, Facebook withdrew the presentation from the show, and VR Hugo Barra Vice President issued the following statement:
The Oculus demo we show at public events includes a standard set of experiences. Some action games can include violence. In view of recent events in Florida and respect for the victims and their families, we have removed them from this demo. We regret that we did not do this at the beginning.
USB4 specifies tunneling of:
USB 3.2 ("Enhanced Superspeed") Tunneling
DisplayPort 1.4a -based Tunneling
PCI Express (PCIe)-based Tunneling
Main Benefits of USB 4
The new USB 4 standard has three main benefits over prior versions of USB.
40 Gbps Maximum Speed: By using two-lane cables, devices are able to operate at up to 40 Gbps, the same speed as Thunderbolt 3. The data is transmitted in two sets of four bidirectional lanes.
DisplayPort Alt Mode 2.0: USB 4 supports DisplayPort 2.0 over its alternative mode. DisplayPort 2.0 can support 8K resolution at 60 Hz with HDR10 color. DisplayPort 2.0 can use up to 80 Gbps, which is double the amount available to USB data, because it sends all the data in one direction (to the monitor) and can thus use all eight data lanes at once.
Better Resource Allocation for Video, PCIe: In lieu of alternative mode where the other interface takes over the connection, USB 4 devices can use a process called "protocol tunneling" that sends DisplayPort, PCIe and USB packets at the same time while allocating bandwidth accordingly.
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