NOX

Kray is a state of the art global illumination renderer that allows very fast and accurate rendering of scenes where indirect light plays important role. It includes the most advanced modern algorithms and optimizations to allow it to render full global illumination, reflections, refractions and caustics quickly on standard computers. Fast global illumination: light/photon mapping – biased, but very fast and not much dependent on number of ray recursions, path tracing – unbiased with serval sampling optimizations, irradiance caching – for fast, view independent, reusable GI solution storage, caustics. Light models: point/directional, line lights, area lights, background light, HDR image based lighting, lights pre sampling. Instancing: allows repeated re-use of the same geometry in multiply locations in the rendered scene with very low memory consumption, instanced geometry can be also instances, even self cloning is possible with user defined number of recursions.

appleseed is an open source, physically-based global illumination rendering engine primarily designed for animation and visual effects. appleseed is actively developed by a small, international team of talented volunteers from the animation and VFX industry. Its core mission is to provide individuals and small studios with a complete, reliable, fully open rendering package. Over the years appleseed has been used on several projects including TV documentaries, ads, promotional videos and an animation short. appleseed implements a modern workflow based on path tracing that enables artifact-free, single pass rendering with very little technical tuning. It is simultaneously capable of strictly unbiased rendering when total accuracy matters, and biased rendering when artistic freedom and shorter rendering time are paramount.