.. SPDX-FileCopyrightText: 2021 Intel Corporation .. .. SPDX-License-Identifier: CC-BY-4.0 ============ Introduction ============ OSPRay is a scalable, and portable ray tracing engine for high-performance, high-fidelity visualization. The purpose of OSPRay is to provide an open, powerful, and easy-to-use rendering library that allows one to easily build applications that use ray tracing based rendering for interactive applications (including both surface- and volume-based visualizations).