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Bottom line: With TwitchCon in a day, Nvidia announced the RTX broadcast engine. The new SDK kits using RTX acceleration use the "dedicated artificial intelligence processors of the graphics processor called" Tensor Cores "to add various effects to live streams.
RTX Greenscreen is one of the most interesting and useful for the streamer. The composition by chrominance key (commonly called green screen) is the method of filming a subject on a green background and then replace the background with another image. This is how many streamers fit into other content like gameplay.
However, the use of chroma keying can be a problem. The background screen takes up a lot of space in a studio. The lighting should be fair, and the streamer should avoid wearing anything green for the effect to work.
For Nvidia, RTX Greenscreen uses artificial intelligence to identify the part of the human image and then remove the background. It works in real time and seems to be just as effective as the traditional method. Sufficient lighting is probably still essential.
A second SDK called RTX AR detects the face of the user. He can follow facial features and facial expressions and even create a model on which other 3D effects can be applied and modified in real time. One of the applications would be to use your face to control an animated model in the same way as the Apple Memojis.
The third app is RTX Style Filters. These filters "use an artificial intelligence technique called style transfer to transform the appearance of a webcam stream according to the style of another image." Streamers can use it to give their stream a sketched look or other weird effects.
Do not forget that at the present time, these features are only available in the RTX Broadcast Engine software development kits. However, Nvidia reported that it was working with OBS, a developer of live and live application applications, on the integration of RTX Greenscreen into OBS Studio. It will be presented at TwitchCon this weekend and should be distributed to users in about a month.
The company said Streamlabs and XSplit were also working on adding effects to their applications. It was not known when these companies would be ready with the updates.
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