3D Splanchnic shows how you can use nParticles to create drips of rain or blood on any surface.
Maya has quite a few ways to handle liquid-like effects from Bifrost to nParticles. While the newer Bifrost makes short work of certain types of simulations, nParticles are a great way to quickly handle some effects.
Check out this new tutorial from 3D Splanchnic who shows how to create drips on a surface in Maya. “I wanted to find a solution for blood dripping on a surface from a wound — This nParticle solution did the trick.”