AMD Radeon™ ProRender is a powerful physically-based path traced rendering engine that enables creative professionals to produce stunningly photorealistic images.
- - Radeon ProRender is the most popular Windows, Mac & Linux alternative to OSPRay.
- - Radeon ProRender is the most popular Open Source & free alternative to OSPRay.
YafaRay is a free open-source montecarlo raytracing engine released under the LGPL 2.1 license. Raytracing is a rendering technique for generating realistic images by tracing the path of light through a 3D scene.
Mitsuba is a research-oriented rendering system for forward and inverse light transport simulation. It consists of a core library and a set of plugins that implement functionality ranging from materials and light sources to complete rendering algorithms.
OptiX provides a simple, recursive, and flexible pipeline for accelerating ray tracing algorithms. Bring the power of NVIDIA GPUs to your ray tracing applications with programmable intersection, ray generation, and shading.
- - NVIDIA OptiX is the most popular Self-Hosted alternative to OSPRay.