Answer:
Renaissance artists used watercolors on wet plaster.
Renaissance artists developed a new technique in painting the fresco painting. The process of painting on walls was very tricky and required a masterful grace to do it. Fresco is one of the challenging art which required speed and accuracy. It is a technique of painting using the wet lime paste on the wall. Artists during that period add color pigment mix with water onto a thin layer of wet plaster. The process of creating fresco with colors allowed it to lasts for centuries.
Step-by-step explanation:
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