ofxFlowtools is an open source software toolkit for creating audiovisual installations that respond to human motion.

ofxFlowtools is an add-on for OpenFrameworks that combines 2D fluid simulation, optical flow and more using GLSL shaders. The source code can be found on GitHub

ofxFlowtools is at the core of most of Oostrik's installations. Occasionally he uses the toolkit directly for Performances or Interaction with a live Audience.

ofxFlowtools is also being used by other artists and creatives.