Intel OSPRay

Intel OSPRay is an open-source, scalable, and portable ray tracing engine library developed to provide high-fidelity interactive rendering on Intel architecture. By 2026, OSPRay has fully integrated into the Intel oneAPI Rendering Toolkit, leveraging SYCL for seamless cross-architecture performance across Xeon CPUs and Max/Arc Series GPUs. It is built upon Intel Embree and Open VKL (Volume Kernel Library), allowing for the efficient rendering of both surface geometry and massive volumetric datasets. OSPRay is designed to handle 'big data' visualization challenges, utilizing MPI for distributed rendering across high-performance computing (HPC) clusters. Its architecture focuses on performance without sacrificing physical accuracy, supporting path tracing for photorealism and a dedicated 'SciVis' renderer for analytical visualization. The library's ability to run on standard server hardware without dedicated graphics cards makes it a cornerstone for cloud-based visualization and remote scientific analysis, while its 2026 updates provide enhanced support for AI-accelerated denoising via Open Image Denoise (OIDN) and real-time hardware-accelerated ray tracing on modern Intel discrete GPUs.