type material refinement stone walls only scene keep exact image no geometry lighting or color changes objective increase the perception of depth between stones in the masonry walls stone walls enhance separation between individual stones make stones feel layered and stacked not flat joints slightly deepen shadows between stones increase contrast inside gaps make joints more readable visual effect stones must appear one in front of another with subtle overlap perception more three dimensional avoid flat uniform surface appearance control muy importante keep same stone size same layout same color only enhance micro shadowing depth perception avoid no change in geometry no increase in stone size no new textures no over contrast or harsh shadows
