这是很久以前的说法了

In 2018, NVIDIA announced GeForce RTX series (Turing architecture).

What does RTX really do?

• It has particular hardware to trace rays
• 10 Giga rays per second
• → 1 sample per pixel (real-time applications)

There is no primary ray because we can use rasterization. Thus, we only need to send out 3 rays.

• If it can improve to 2 SPPs, it will be a great improvement.

State of the Art* Denoising Solution (2019年)

Relation to DLSS: orthogonal (can be run together or respectively)

Goals (1 SPP):

• Quality (no overblur, no artifacts, keep all details)
• Speed (< 2ms to denoise one frame)

Mission impossible

• Sheared filtering series (SF, AAF, FSF, MAAF, ...)
• Other offline filtering methods (IPP, BM3D, APR, ...)