YouTube video (Two Minute Papers) by Dr. Zsolnai describing recent NVIDIA research that enables wave-optical effects within ray tracing, producing realistic diffraction and iridescence (beetle shells, CDs, bornite ore, snake scales) and claiming up to 10,000× speedups over prior techniques. The video also highlights a separate NVIDIA technique for simulating glints (up to 5× faster) and a colleague Christian Freude’s paper on better comparing renderer outputs.
Chapters
Dear fellow scholars, this is Two Minute Papers with Dr. Zsolnai. Today is a good day. Scientists at Nvidia have done it. Now, I hear you asking, Doctor, what are you talking about? Well, we like to say that ray tracing is the holy Grail of computer graphics research. And within ray tracing, wave optical light simulations perhaps are the Holy Grail. Yes, the Holy Grail. Within the holy Grail. However, achieving that is really difficult. You see, ray tracing means writing a simulation program that takes rays of light and bounces them around in the scene, creating a beautiful photorealistic image. Note that I use the word rays of light. However, light is an electromagnetic wave. Yes, a wave, not a ray. If we simulated it as a wave instead, it could create a convincing image of incredibly beautiful microscopic structures, like light diffraction off of the scales of a Brazilian rainbow boa or a piece of bornite ore. Or it could create an image of beetle shells that have multiple layers that bounce light around between them. These beautiful wave effects can also be observed in the spoke guards of some bicycles and other parts as well. All beautiful, shiny, rainbowy things that are unfortunately, almost impossible to simulate. This previous technique from just a year ago can at least start rendering the refractive surface of a CD disc. But look, this one should be a line, not a collection of dots. So, unfortunately, no wave optics simulations for us until today. Yes, scientists at Nvidia introduced a new technique that can simulate light both as a ray, but as a wave too. And this gives rise to these beautiful effects. Oh, my goodness, look at that gorgeous scene. So good. And yes, finally, when it comes to CDs, Rainbowy lines are now lines. We can have our beetles, our bornite ore, and even the snake. Now hold on to your papers, fellow scholars, because here comes the best part. It can simulate all of these phenomena up to 10,000 times faster than previous techniques. And note that this is a handcrafted technique, a product of pure human ingenuity. Wow. As we are slowly approaching superintelligence, I mean, these AI things are starting to be able to decode Hungarian words. Yes, this is a Hungarian word. Really? And yes, the translation is also correct. But such a pure handcrafted technique is. Chef's kiss. Love it. And here is something that also made me extremely happy. Look at this. This is a new work on how to simulate the appearance of glints, shiny little dotty things in a simulator. This can take car, paint, materials, snow, shiny presence, and create a next level video. And up to five times faster than the state of the art. And does that mean that oh yes, yes it does. All this is happening in real time. Pinch me. I can't believe it. All this beautiful footage in real time. You see there is a ton of action happening in light transport simulation research. And these incredible papers just keep coming out, one after another, breakthrough after breakthrough. Now if you allow me, I would also like to show you a really cool new paper from my colleague Christian Freude, who who was not happy with the way we compare the results of different ray tracing programs. You see, these two images were computed differently. However, this renderer was cutting some corners. But where if we use the usual previous ways of comparing images, we get some information, but not that much. However, look. Haha. And this new technique tells us exactly where those corners were cut. I was a small part of this paper too, and if you wish to read it, make sure to check it out in the video description. Bravo Christian. If you're looking for inexpensive cloud GPUs for AI, Lambda now offers the best prices in the world for GPU cloud compute. No commitments or negotiation required. Just sign up and launch an instance and hold on to your papers. Because with the Lambda GPU cloud you can now get on demand H100 instances for just 1.99per hour. Yes, 1 99. And they are one of the first cloud providers to offer publicly available on demand H100 access. Did I mention they also offer persistent storage? So join researchers at organizations like Apple, MIT and Caltech in using Lambda Cloud instances, workstations or servers. Make sure to go to lambdalabs.compapers to sign up for one of their amazing GPU instances today. Thanks for watching and for your generous support and I'll see you next time.
