Ky_Trail Pro – is the next generation of the popular free plug-in for 3ds Max – Ky_Trail, which was first released in early 2005. Professional version includes many changes and improvements. It is based on completely revised core, which supports multi-threading, and many new visualization parameters. Ky_Trail Pro is equipped with much faster algorithms. In particular, the render time of traces for a Particle Flow system was reduced several times.