Rayve 3D game engine by Raylogic has a unique non-rasterized ray tracing adjacent renderer.

Rayve is an easy-to-use, single header C++ game engine. It's extremely lightweight and carefully crafted. A highly data-oriented hierarchal entity/component framework is used. Artists can create complex levels with collision in a 3D modeling tool using Rayve's naming convention. Assets load fast for quick turn around during development. Use Visual Studio's hot swapping for live coding. The simple API makes C++ feel similar to scripting. Try Rayve for your next game! Please read and agree to the license before downloading.