Rusty Ray Marcher, implemented full animation support (almost every parameter of the entire ray marcher can be animated), post-processing, 12-Bit per channel rendering, sampling, Phong shading and much more. It is designed to be very easily extensible. Scenes and animations can be created in-code or using my real-time Ray Marching Editor
Examples:
Mandelbulb with some cool features of the engine
Ray Marching Editor to final render process
Signed distance functions and some of the modifiers are translated from the excellent Inigo Quilez guides. Phong Shading is loosely based on the Scratchapixel implementation.