Nvidia’s latest RTX-series GPUs are the first to feature real-time ray tracing, which can make games look prettier than ever. However, they’re also powerful computing platforms for AI development. Nvidia has demoed a new AI application powered by the Tensor Cores in RTX cards called RTX Broadcast Engine. Among other things, the new Broadcast Engine can clip the background out of a video feed to create an artificial “green screen.”
The RTX Broadcast Engine is aimed at game streamers, and it includes several functions. The RTX Greenscreen is undeniably the most impressive of them, though. Using the computing power of RTX cards, the Broadcast Engine can process a video in real-time and understand which parts are the streamer and which parts are the background. Thus, you can replace the background with different scenes or make it fully transparent in the stream.
RTX Greenscreen is similar to features integrated with select webcams from Logitech C922x and Razer Stargazer, but Nvidia’s solution should work with any video feed. Those webcams with custom background removal tend not to work very well anyway. If Nvidia’s solution works well, it could make those devices much less attractive.
The RTX Broadcast Engine also features a face-tracking augmented reality (AR) feature called RTX AR. It recognizes faces with enough detail to map your features and render them on a 3D model. Again, this feature is similar to what you can get with specific pieces of hardware like the iPhone. That device uses IR dots and special cameras to map your face and produce “Animoji” versions of your face. Nvidia doesn’t need real depth data — the GPU just figures it out with AI.
Finally, there are RTX Style Filters, which use AI to apply filters to a full video. The idea here is you can use the Broadcast Engine to match the style of a game or artwork. In the demo video, Nvidia applies a “Starry Night” filter to a video in real-time. We don’t know how well this will be able to match the look of a game, but it could make for some cool streaming effects.
Developers can apply for early access to the RTX Broadcast Engine right now on Nvidia’s site. It will roll out to everyone “in the coming months.” Nvidia is also working with the makers of popular streaming software OBS to integrate the RTX Greenscreen feature.