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Top 23 C++ Raytracing Projects
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FluidX3D
The fastest and most memory efficient lattice Boltzmann CFD software, running on all GPUs and CPUs via OpenCL. Free for non-commercial use.
- Project mention: We just added bounties on Windows and macOS issues | news.ycombinator.com | 2025-06-29
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- Project mention: Show HN: VSC – An open source 3D Rendering Engine in C++ | news.ycombinator.com | 2025-03-11
Is this a recreation of the venerable POV-RAY https://www.povray.org/ (30 years old now, wow)?
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Unreal-Engine-Guide
Unreal Engine 5 Guide. Learn to develop games for Windows, Linux, macOS, iOS, Android, Xbox Series X|S, PlayStation 5, Nintendo Switch.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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hybrid-rendering
A Vulkan sample that demonstrates a Rasterization and Ray Tracing Hybrid Rendering Pipeline.
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BioExplorer
The Blue Brain BioExplorer (BBBE) is a tool for data visualization experts and scientists to extract and analyze scientific data from visualization and interactive exploration
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).
C++ Raytracing discussion
C++ Raytracing related posts
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We just added bounties on Windows and macOS issues
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F3D – Fast and minimalist 3D viewer
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Wicked Engine replaced Bullet with Jolt physics, immediate performance gains
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F3d v2.3.0 Released – Fast and minimalist 3D viewer
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High Performance Voxel Engine (2021)
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Offering mentorship for first open source contributions
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Some DIY helmet mods for my cyberpunk-inspired cosplay
- A note from our sponsor - Stream getstream.io | 23 Dec 2025
Index
What are some of the best open-source Raytracing projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | tinyraytracer | 5,256 |
| 2 | FluidX3D | 4,816 |
| 3 | F3D | 3,949 |
| 4 | tinykaboom | 2,395 |
| 5 | vk_raytracing_tutorial_KHR | 1,651 |
| 6 | povray | 1,450 |
| 7 | Unreal-Engine-Guide | 1,386 |
| 8 | vk_mini_path_tracer | 1,227 |
| 9 | hybrid-rendering | 950 |
| 10 | GPU-Raytracer | 944 |
| 11 | DiligentCore | 706 |
| 12 | Adria | 531 |
| 13 | RayTracing | 340 |
| 14 | ProtoTracer | 182 |
| 15 | RayTracer | 137 |
| 16 | CIS-565-Final-VR-Raytracer | 100 |
| 17 | vulkan_ray_tracing_minimal_abstraction | 95 |
| 18 | BioExplorer | 66 |
| 19 | path-tracer | 56 |
| 20 | PRayGround | 42 |
| 21 | Lift | 32 |
| 22 | astray | 26 |
| 23 | muon | 22 |
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