
Presser with Gray Olson
Rustacean Station
00:00
What Is Ray Tracing?
The point of ray tracing is to simulate rays of light that are emitted from light sources, bounce around in the scene off of objects, and then eventually reach the camera. It's super simple to implement a basic ray tracer, but it'll take, you know, 20 seconds to render a noisy version of your scene. In video games, we want to render a frame in a few milliseconds. So this has been sort of the problem with ray tracing since it was sort of invented. I think back in like the 80s is that it's beautiful and it creates very much simulates what actually happens in real world. But it's incredibly like computationally expensive.
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