In this tutorial we'll start modeling a simple knife object using poly modeling tools. We'll animate it in slow motion to have more details on particle animation, then we'll add a particle system with PFlow to emit particles using a gradient map and sub-object selections. We'll create a trails and we'll tweak a little bit it to have a more fluid-like movement. Krakatoa will be used to cache millions particles and then to render it, and we'll see a sneak peek of Magmaflow used to control the particle density in render. Knife render will be done with Mental ray and final composition will be done in Fusion.