Awesome

Code for "How to Build a BVH"

INSTRUCTIONS: Open the "_ bvhdemo.sln" file (all the way at the top!), and make one of the 10 projects the active project.

Note: project files are for Visual Studio 2019; they will convert without issues to 2022 though.

Each project implements one of the 10 articles:

part 1, basics: https://jacco.ompf2.com/2022/04/13/how-to-build-a-bvh-part-1-basics ...Which explains how to set up a minimal but working BVH in about 300 lines of code. Project: basics.vcxproj, files: basics.cpp, basics.h

part 2, faster rays: https://jacco.ompf2.com/2022/04/18/how-to-build-a-bvh-part-2-faster-rays ...in which rays are traced faster, at the expense of BVH build time. Project: faster.vcxproj, files: faster.cpp, faster.h

part 3, quick builds: https://jacco.ompf2.com/2022/04/21/how-to-build-a-bvh-part-3-quick-builds ...explains how a high-quality BVH can be constructed rapidly. Project: quickbuild.vcxproj, files: quickbuild.cpp, quickbuild.h

part 4, animation: https://jacco.ompf2.com/2022/04/26/how-to-build-a-bvh-part-4-animation ...in which various forms of animation are applied to BVHs. Project: animation.vcxproj, files: animation.cpp, animation.h

part 5, TLAS & BLAS: https://jacco.ompf2.com/2022/05/07/how-to-build-a-bvh-part-5-tlas-blas ...describes how a lot of BVHs can be made into one. Project: toplevel.vcxproj, files: toplevel.cpp, toplevel.h

part 6, TLAS & BLAS part 2: https://jacco.ompf2.com/2022/05/13/how-to-build-a-bvh-part-6-all-together-now ...which completes the discussion of article 5. Project: alltogether.vcxproj, files: alltogether.cpp, alltogether.h

part 7, consolidation: https://jacco.ompf2.com/2022/05/20/how-to-build-a-bvh-part-7-consolidate ...in which the BVH is applied to some nicer renders. Project: pretty.vcxproj, files: pretty.cpp, pretty.h, bvh.cpp, bvh.h

part 8, whitted: https://jacco.ompf2.com/2022/05/27/how-to-build-a-bvh-part-8-whitted-style ...completing part 7, with full recursive ray tracing, in real-time. Project: whitted.vcxproj, files: whitted.cpp, whitted.h, bvh.*

part 9a, GPGPU: https://jacco.ompf2.com/2022/06/03/how-to-build-a-bvh-part-9a-to-the-gpu ...which is really a GPGPU tutorial, using BVHs as an example. Project: gpgpu.vcxproj, files: gpgpu.cpp, gpgpu.h, bvh.*

part 9b, 'massive': https://jacco.ompf2.com/2022/06/15/how-to-build-a-bvh-part-9b-massive ...series finale, with TLAS & BLAS on the GPU. Also: GL/CL interop. Project: massive.vcxproj, files: massive.cpp, massive.h, raytracer.cl.

NOTE: All projects share the same template files and build directories. DISCLAIMER: None of this is supposed to be 'production quality'. LICENSE: This code is covered by the Unlicense. Feel free, no strings. P.S.: Follow me on Twitter, <a href="https://twitter.com/j_bikker">@j_bikker</a>.