NVIDIA first adopted real-time ray tracing technology on RTX 20 series graphics cards in 2018, and then ray tracing technology became a key technology for further game screen effects. At present, Twitter blogger @0X22H found that NVIDIA recently published a report on the research results of light tracking technology, and the report shows that they are working on ways to improve the performance of light tracking technology.
Nvidia's report, co-published with the help of Georgia Tech's Sana Damani, has given the technology that boosts ray tracing performance an abstract name: "GPU Subwarp Interleaving."
This report is very technical, but the general meaning is to improve the performance of ray tracing by solving the loss that may occur when the GPU calls warps in the ray-tracing operation. The so-called warp is that when the GPU performs large-scale parallel operations, many of the same operation inputs will be packaged into a group of parallel executions to become the smallest execution unit, which is wrp.
In the report paper, Nvidia noted that this new "technique" improved real-time ray tracing efficiency by an average of 6.8 percent, and best-case results by 20 percent. However, the report goes on to state that the technology would require architectural-level changes to the GPU hardware to be implemented. This means that future gamers won't be able to get this benefit with Nvidia driver upgrades.
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