Primary - various fabrics ranging from dense to threadbare, fine to coarse. Secondary - works as a shader and an 8-bit style block stacker.
Parameters and behavior schemes:
Does not require stylus.
Random color, value, scales.
The rotation parameter has something I saved as "Stacker". The shape initially turns to follow your stroke but very quickly becomes stuck. This is useful as an on-the-fly constant direction controller. Helps maintain the manufactured look of fabrics, and makes block stacking easier.
Comments on use:
For coarse fabrics use higher opacity, fine fabrics use lower opacity. Density is controlled by stroke concentration. Changing the magnitude of the negative and positive boundaries for the value slider will change the thread shade variation. Try turning on a gradient for weird effects (can pretty easily do those multi-color weaves). For a sharp variance (plaid, cyber) effect try changing the value behavior scheme to random -> multiply (x) -> floor, where X is some number greater than 1. The lower you go with X, the more the value will tend towards the lower boundary and vice versa.
Hope you like it.

To moderators: Would you prefer if I condensed my brush submissions into one thread? This is my first time on a forum, and I don't mean to clutter.