Worth noting that Embree is a ray tracer in a different sense of the word: It's a library to accelerate the tracing of rays only. All other behavior (such as li

Worth noting that Embree is a ray tracer in a different sense of the word: It's a library to accelerate the tracing of rays only. All other behavior (such as light transport, materials, etc.) is left to the user. They do have an example renderer implemented in it though. As for open source path tracing renderers, some well known ones are: - LuxRender: http://www.luxrender.net/ - Mitsuba: https://www.mitsuba-renderer.org/ - Tungsten: https://github.com/tunabrain/tungsten (uses Embree)