Hello! I have found this tutorial for extremely fast grass painting in PS , using feature "take color from layer".
Tutorial in one screenshot: http://dobrokot.ru/pics/i2016-04-07__07-39-22_780kb.jpg

How to take color or other property from some layer in Krita, to allow define grass color (any may size and rotation, to avoid emulation with pressure)? I can see only tablet/pen movement and perspective as possible input.
How can it possible to use this tutorial in Krita?

Smudge Brush can lift color from layers below, check Overlay Mode in the settings.

Or use this preset, you'll have to make proper grass shape tip yourself. Although i don't see any merit to this method at all.
http://dropcanvas.com/1dmba

Thanks! It works, and seems it can be used for real drawing ( I am experimenting now ).
Lot of thanks for sharing this brush, it is extremely rare that people not only give useful advice, but also try actually to apply it. And I now have good point to start experiments.

It have one problem - it takes color from painting layer too, so it takes random color from itself, not only source layers, http://dobrokot.ru/pics/i2016-04-07__16-32-19_56kb.jpg