int.lib is a set of Max abstractions/javascripts by Oli Larken that lets you interpolate between different presets by navigating a 2D graphical environment. It’s similar in concept to the Audiomulch Metasurface Color blobs and the Hipnoscope but implements a gravitational system allowing you to represent presets with variable sized balls. As you move around the space the size of the balls and their proximity to the mouse cursor affects the weight of each preset in the interpolated output.
int.lib includes three objects: int.jit (the control centre) int.list (for interpolating lists) and int.vst (for interpolating parameters of a vst plugin).
The full announcement can be found here.