# RenderKit/embree

Embree ray tracing kernels repository.

Repository: https://github.com/RenderKit/embree
Canonical: https://ross.abutalabs.com/products/embree
Language: C++
License: Apache-2.0
License Family: permissive
Last push: 2026-08-26T21:31:12+00:00

## Health v2 (maintenance only)
Score: 80/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 45, longevity 100
- inputs: {"age_days": 5024, "days_push": 7, "days_rel": 153, "gap_med": 363, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2745, forks 435 (observed 2026-08-28T04:07:16.691083+00:00)

## What it is
Intel Embree is a high-performance ray tracing kernel library providing optimized primitive intersection and acceleration structure construction for photo-realistic rendering. It supports x86 and ARM CPUs with SIMD instruction sets and Intel GPUs via SYCL.

## Use cases
- build a production path tracer with fast incoherent ray performance
- accelerate ray-primitive intersection in a rendering engine
- render motion-blurred animated scenes with deformation blur
- write a single-source renderer that runs on both CPU and Intel GPU
- trace curves and subdivision surfaces for hair and character rendering
- speed up Monte Carlo rendering workloads on modern CPUs

## When to choose
- you need production-grade, highly optimized ray tracing kernels for a renderer
- you want accurate intersection for triangles, curves, subdivision surfaces, and instancing
- you target CPUs with SSE/AVX/AVX-512 or Intel GPUs with hardware ray tracing
- you need low memory consumption and fast dynamic scene updates

## When to avoid
- you need a complete renderer or scene graph rather than low-level kernels
- you target non-Intel GPUs without SYCL support
- you want real-time game ray tracing integrated with a graphics API like DirectX or Vulkan
- your project requires a permissively embeddable solution with bindings for higher-level languages

## Facets
- artifact type: library
- maturity: stable
- function: graphics, simulation, gpu-computing
- domain: graphics, simulation, performance
- platform: windows, cpp, cross-platform
- tags: ray-tracing, rendering, intersection-kernels, sycl, ispc, monte-carlo-rendering, spatial-acceleration-structures, game-development, linux, macos, gpu

## Member repositories
- RenderKit/embree (main) score 80

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:16.691083+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:19:03.667639+00:00, confidence not recorded.
  - readme: https://github.com/RenderKit/embree (fetched 2026-08-28T04:07:16.691083+00:00, sha 5a37640b8714)
- Data as of 2026-08-30T08:39:29.467469+00:00.