You seem to have bought in heavily to marketing. Pathtracing software has been available for production use on GPUs for years before RTX was available. Even i

You seem to have bought in heavily to marketing. Pathtracing software has been available for production use on GPUs for years before RTX was available. Even in games, raytracing has been in use for a long time in various forms. Yes RTX enables extra optimizations and provides nice APIs for it to boot, but it doesn't enable the technology as a whole. It's very much existed in realtime for a long time and on GPUs for a long time as well. The real coup if anything is denoising. Advances in denoising are actually what really push realtime pathtracing forward as you no longer need to fire as many rays to converge on a useable image.