# RenderKit/ospray

An Open, Scalable, Portable, Ray Tracing Based Rendering Engine for High-Fidelity Visualization

Repository: https://github.com/RenderKit/ospray
Canonical: https://ross.abutalabs.com/products/ospray
Homepage: http://ospray.org
Language: C++
License: Apache-2.0
License Family: permissive
Topics: c-plus-plus, path-tracer, ospray, ray-tracing, visualization, rendering
Last push: 2026-08-20T09:15:36+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 8, longevity 100
- inputs: {"age_days": 4822, "days_push": 13, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1094, forks 200 (observed 2026-08-28T04:03:33.943998+00:00)

## What it is
Intel OSPRay is an open-source, scalable, portable ray tracing engine for high-fidelity, high-performance visualization on CPUs and Intel GPUs. It is a C++ library built on Embree, Open VKL, and Open Image Denoise, suitable for interactive surface- and volume-based rendering from laptops to HPC clusters.

## Use cases
- render scientific volume data with ray tracing
- build interactive visualization applications with path tracing
- render high-fidelity images on HPC compute nodes
- add ray-traced rendering to a C++ application
- visualize large surface and volumetric datasets interactively
- render on Intel GPUs with SYCL

## When to choose
- you need a scalable CPU/GPU ray tracing library for scientific or technical visualization
- you want volume rendering and path tracing with a permissive Apache-2.0 license
- you target HPC systems or Intel hardware with SIMD/SYCL acceleration

## When to avoid
- you need real-time game-style rasterization rather than ray tracing
- you require NVIDIA/AMD GPU support (GPU path is Intel-only and beta)
- you need a turnkey renderer application rather than an embeddable library

## Facets
- artifact type: library
- maturity: active
- function: graphics, simulation, sdk
- domain: graphics, simulation, developer-tools, cross-platform
- platform: windows, cpp, cross-platform
- tags: ray-tracing, path-tracing, rendering-engine, visualization, hpc, scientific-visualization, volume-rendering, ispc, embree, sycl, linux, macos, gpu

## Member repositories
- RenderKit/ospray (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:33.943998+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 2026-08-30T06:47:27.811172+00:00, confidence not recorded.
  - readme: https://github.com/RenderKit/ospray (fetched 2026-08-28T04:03:33.943998+00:00, sha ca943f9bcd9c)
- Data as of 2026-08-30T08:39:29.467469+00:00.