Grey and brown, mainly.
Early on, straight water was used. Later, turpentine and specialty brush cleaners were developed.
computers
Many Renaissance painters used one-point perspective to create a sense of space in their works.
They have to measure what paint to use and what size canvass
Well We can say Color because this can influence painters to be creative.
As far as I know, painters don't use knives. What I think you could be asking is a putty knife used by drywallers.
Car painters.
To create layers of paint that reflected light
In the first phase, oil painting. In the second phase (after 1912) they introduced collage.
Heavy use of diagonal lines
color (apex)
color. -apex