Major upgrades: Same link: xr-need.com/web-features/thr… - 3–5× faster (NMEE caustics off) — MNEE compiles on demand instead of always. - Sharper caustics, ~15% faster — glass-targeted seed fallback lifts grazing-angle coverage 17% → 68%, plus a tuned manifold walk. - 2D-Sobol sampling → −40–80% noise on rough materials - Re-architected the megakernel — 4 MNEE sampling blocks folded into 1 (−6 KB) a slim/full split - Cleaner contact shadows — RT-Gems per-axis ray-offset kills shadow-acne on large/CAD scenes #pathtracing #pathtracer #WebGPU #ThreeJS #khronos

Basketball Arena Now with 50% off along with all other assets on our Fab store. Rendered with Pathtracer in UE5 fab.com/listings/0bad6164-76… #UnrealEngine #Unity3d #Blender

Glad to see our shaders match the pathtracer so well! How come the our shaders look brighter compared to the pathtracer? Tonemapping?

Just released #GeoStream! #Alembic to #Unreal ~95% File size reduction. 😍 60GB --> 5GB or even more (dep. on your simulation) Key features: - heavy size reduction - fast streaming - #PathTracer - Velocity advection fab.com/listings/a3f8e8dc-ed…

Different generations of the same idea. three-gpu-pathtracer is the mature WebGL2 fragment-shader PT (excellent work — gkjohnson's three-mesh-bvh also powers my CPU-side BVH build; github.com/gkjohnson/three-m…). Mine is WebGPU compute: raw WGSL megakernel, storage buffers instead of texture-encoded BVH/geometry, tiled time-sliced dispatch. Material path differs too: glTF→MeshPhysical there vs. my own glTF→OpenPBR layer stack (F82 conductor Fresnel, multiscatter energy compensation, coat/sheen/aniso/iridescence/dispersion/volume glass) — white-furnace-validated, 13/13 energy presets in tolerance. Performance: no head-to-head yet, so no rays/sec claims. My focus is convergence per sample: Owen-scrambled QMC blue-noise, NEE/MIS across env punctual emissive-mesh lights, per-pixel adaptive stopping (converged pixels go free). Full-rate raster preview while moving, PT on settle. Runs on iOS Safari 26. Same-scene benchmark with published methodology is on the list.

How does it compare with three-gpu-pathtracer performance wise?

A WebGPU compute path tracer built from scratch. Study #2 xr-need.com/web-features/thr… – OpenPBR materials (clearcoat, sheen, anisotropy, iridescence, dispersion, glass) – Full glTF 2.0 KHR extensions – HDRI area punctual lights, MIS everywhere – Physical DoF: double-click focus, real f-stops, hex bokeh – Invisible shadow catcher (colored glass shadows) – No denoiser — raw, converged path tracing – three.js WebGPU @threejs @thekhronosgroup @webgl_webgpu @WebGPU @UploadVR @80Level @mrdoob @bruno_simon @zeuxcg #pathtracing #pathtracer #ThreeJS #gameDev #WebGPU #3D #webDev #gltf

A WebGPU compute path tracer built from scratch. Study #1 xr-need.com/web-features/thr… - OpenPBR materials (clearcoat, sheen, anisotropy, iridescence, dispersion, glass) - Full glTF 2.0 KHR extensions - HDRI area punctual lights, MIS - three.js webGPU @threejs @thekhronosgroup @webgl_webgpu @WebGPU @UploadVR @80Level #pathtracing #pathtracer #ThreeJS #gamedev #WebGPU #3D #webDev #gltf

implemented a grid-based acceleration structure for the spectral pathtracer (to replace SDF scene intersection), which allows for huge explicit primitive counts, runtime interactive user edits, and runs >10x faster

POPX、まさかのPathTracer付属 TouchDesignerでGeometryLightできてちょっと感動

I added a path tracing renderer in Manifest3D using three-gpu-pathtracer, because @threejs default renderer doesn't have global illumination for material emission now you can view assets generated by gpt 5.5 in realistic render, the chandelier in dark mode is especially awesome

apparently its important i make it 100% clear that i used the following libraries in making this software "@xyflow/react": "^12.5.6", "dockview": "^6.0.7", "nanoid": "^5.1.5", "react": "^19.1.0", "react-dom": "^19.1.0", "three": "^0.176.0", "three-gpu-pathtracer": "0.0.23", "three-mesh-bvh": "^0.9.10", "xatlas-web": "^0.1.0", "zustand": "^5.0.3" thanks oss creators who let me tinker away in the evenings

Amazing! I don’t see any issue with pathtracer

Unreal has a legit pathtracer - it being a "game engine" isn't the main issue. It has to do with the breakdown of workflows and super rushed production pipelines.

i’m kinda done with roblox for now, got sm irl stuff going on, but with my previous real-time pathtracer i managed to make FULLY raymarched volumetric clouds using beer’s law! code’s messy as hell, but yeah, first fully volumetric clouds in roblox are here! #RobloxDev #Scripting

I realised since I have the bvh available, it could be interesting to see the world via a pathtracer. Useful for comparing the game engine lightmapper

but how do you explain this simple fact to people who get triggered by hearing the world AI and dont know what a pathtracer or a raytracer actually is

I just used chatgpt to code a pathtracer and now even the GTX 750 Ti can do it in real time at 500 FPS at 1% gpu usage. But I can't show it to you yet, you're not cool enough