Drips Quick TipS
https://clarkcoots.artstation.com/store/6eOz/quick-tips-vol-1
There are several ways to create drips such as with non-uniform blur or slope blur which have been documented. Another method is to use the Tile Sampler to incorporate a lot of control, fix tiling issues, sampling issues and some limitations in variation that other methods may have. Tile Sampler gives options to control random size, color variation and more if needed. The mask input very important due to it controlling the placement of each drip shape in certain areas. This can be used for Rust, Grime Stains, Water, anything you can think of!
Please let me know if you have any questions or feedback!