2024-06-12

[public] 214K views, 25.7K likes, dislikes audio only

Sebastian Lague

Trying to speed up the ray tracer (from a previous coding adventure) so that we can render some more intricate scenes!

Links:

● Source: https://github.com/SebLague/Ray-Tracing

● Get early access to new videos and projects by supporting on:

-- Patreon: https://www.patreon.com/SebastianLague

-- Ko-Fi: https://ko-fi.com/sebastianlague

● Previous Ray Tracing episode: /youtube/video/Qz0KTGYJtUk

● BVH Article: https://jacco.ompf2.com/2022/04/18/how-to-build-a-bvh-part-2-faster-rays/

● 3D Test Models: https://casual-effects.com/data/

● Music Credits: https://github.com/SebLague/Misc-Project-Info/blob/main/Coding-Adventures/BVH.txt

Chapters:

00:00 Intro

00:30 Triangle-Test Debug View

03:34 Bounding Boxes Inside of Bounding Boxes

04:41 Building a BVH

07:41 Traversing the BVH

09:13 GPU-Friendly Data

15:32 Converting Recursion to Iteration

18:06 Box-Test Debug View

21:42 Increasing the Depth of the BVH

25:11 Distance Test and Child Ordering

31:47 The Surface Area Heuristic

37:19 Speeding up the Construction

38:57 32-Byte Nodes

42:20 Transformations

45:10 Supporting Multiple Models

48:45 Some Tests and Final Thoughts