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I wrote a C++ ray tracer from scratch without AI

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HN · launched Jun 15, 2026 · 155 upvotes (top 6%) · 0 views

Niche: graphics rendering engines and libraries · 149 launches, 10 in the last 7 days ▼ -23% · Explore this niche →

Category and tags
  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

More like this: all 149 launches in graphics rendering engines and libraries →

Could you build this?

No Building a custom C++ ray tracer from scratch requires deep knowledge of computer graphics, vector mathematics, rendering equations, and manual memory management.

What it would actually take: A real ray tracer requires implementing ray-object intersection algorithms (spheres, triangles, BVH acceleration structures), material BSDFs (Lambertian, dielectric, conductor), recursive path tracing with Monte Carlo integration, and multithreaded rendering routines in modern C++. Specialized expertise in 3D linear algebra and low-level graphics programming is indispensable.

Discussion

20 comments analyzed.

Competitors mentioned: Web-based ray tracing alternatives (easier to share), Other graphics/game development projects

Concerns raised: Using AI diminishes the value and credibility of the project, Project unlikely to impress employers or academia without a second-order outcome, Difficult to justify deep-dive learning work when AI can do it faster, Unclear professional career impact so far

Feature requests: Web version instead of native implementation, Performance optimizations (C++ memory aliasing/restrict pointers)

Competitors

Other products that read as similar to this one : 800 launches clear the similarity bar, closest 8 shown.

Attention rank: #50 of 801 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 229 days after the earliest competitor.

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.