What is painting with pigment mixed with water/egg on a thin layer of fresh lime mortar or plaster often made during the renaissance and other early time periods?

In what way did van gogh put paint on his canvas when he painted wheatfield with crows? he put his paint on the canvas using very thin strokes of paint. he put his paint on the canvas using very well blended strokes of paint. he put his paint on the canvas as thick as toothpaste.