Splatty! A Gaussian Splatting Viewer for Everyone!
summary
A Gaussian-splat viewer that reads .ply point clouds and displays millions of 3D gaussians from phone video is implemented in C++ using modules, ranges, coroutines, mdspan. The demo loads an 8 MB file (≈280k splats), sorts a 65,000-entry depth buffer, and uses OpenGL shaders and a texture-generation coroutine; switching to a strided view cuts one hotspot from 120µs to 90µs (~30% speedup). Embedding large splat files hits compiler memory limits; OpenGL buffer/type errors required iterative fixes, but the viewer renders iPhone-captured scenes (Nike shoe, backyard BBQ). OpenGL shaders
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chapters (8)
- 0:00Introduction to Splatty
- 1:56What is Gaussian Splatting
- 10:03Translating JavaScript to C++
- 17:07Using C++ Modules
- 26:02Optimizing with Ranges
- 33:28MD Span for Multi-Dimensional Data
- 40:33Exploring Coroutines
- 52:27Project Recap and Demo
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