4 ms·

Can someone ELI5 on the significance.

• anshumankmr 6y ago
  https://www.reddit.com/r/explainlikeimfive/comments/9954a9/eli5_what_is_ray_tracing/ https://www.reddit.com/r/explainlikeimfive/comments/9954a9/e...
  • stevenhuang 6y ago
    I think the poster meant an ELI5 on what Lentil brings and how it works compared to others in its class, not what ray tracing is in general.
• aidenn0 6y ago
  Path tracing is currently state-of-the-art for making photorealistic CG images because it can generate real reflections, refractions &c. by simulating something very similar to how the physical world works. A photo (or movie) is, however, taken through a lens that distorts the image (sometimes intentionally; what is and isn't in focus in a composition is important for drawing the viewers attention). A path tracer can already simulate this by just putting a bunch of pieces of glass shaped like the real lenses of a camera, but this is extremely computationally intensive. This particular implementation uses a few (already known in the literature) techniques for making it faster: bidirectional tracing, selective oversampling, and thin-lens approximations. This is an implementation of these techniques for Arnold, which is a renderer implementation used for many feature films[1]. 1: https://en.wikipedia.org/wiki/Arnold_(software) https://en.wikipedia.org/wiki/Arnold_(software)
• CyberDildonics 6y ago
  Probably not much - the reality is that rendering depth of field in camera in production CG is a very tough sell. Even if there is no speed penalty, renders are usually so expensive that it isn't even a question of doing it in real time in compositing.