Hacker News: krupitskas

New comment by krupitskas in "Modern Rendering Culling Techniques"

krupitskas — Tue, 21 Apr 2026 08:53:54 +0000

This and with reflection you have tiny different representation of your world. RTX has TLAS and BLAS for ray traversing, your own tracing can be based on own BVH acceleration structure and SDF form of the world. So you right, you can't properly cull the world but you can have optimized version by having 1. Nice acceleration structure (hardware TLAS BLAS or software BVH/Octree (iirc octree cache-unfriendly)) 2. Simple material form representation to sample 3. Short rays 4. Initial simplified rays result like screen space reflection 5. Half screen (less rays) and temporal accumulation (even more less rays!)

Modern Rendering Culling Techniques

krupitskas — Sun, 19 Apr 2026 07:54:11 +0000

Article URL: https://krupitskas.com/posts/modern_culling_techniques/

Comments URL: https://news.ycombinator.com/item?id=47822549

Points: 192

# Comments: 43

New comment by krupitskas in "Modern Rendering Culling Techniques"

krupitskas — Sat, 18 Apr 2026 22:48:34 +0000

Finished a blog post on modern rendering culling techniques

I tried to keep it practical: not a deep dive, but a broad overview of the main methods, tradeoffs, and how they fit together in a real renderer.

Frustum culling, occlusion, GPU-driven rendering, meshlets, Nanite, light culling, etc.

Modern Rendering Culling Techniques

krupitskas — Sat, 18 Apr 2026 22:48:34 +0000

Article URL: https://krupitskas.com/posts/modern_culling_techniques/

Comments URL: https://news.ycombinator.com/item?id=47820217

Points: 2

# Comments: 1