Stephen Andrews (artist) to his own experience of living with HIV. Andrews’ method of homemade colour separation evokes both the 19th-century painting technique of Pointillism: “in which small, distinct dots of pure color are applied in patterns to form an image”, and the Ben-Day dots of mechanical printing. Beyond these references, Andrews’ uses the technique to, at the same time, evoke the alchemy of vision and break its mechanics down. As a result, Andrews creates works that “hover at legibility.” “The pixilation or dot matrix completely obscures details, making specifics impossible to see. We can't grasp the full picture.“ The series of rubbed-crayon
Blend modes inverted again. This yields the opposite effect to multiply. The result is a brighter picture. formula_4, where "a" is the base layer value and "b" is the top layer value. This mode is "symmetric": exchanging two layers does not change the result. If one layer contains a homogeneous gray, Screen blend mode is equivalent to using this gray value as opacity when doing “normal mode” blend with white top layer. Overlay combines Multiply and Screen blend modes. The parts of the top layer where the base layer is light become lighter, the parts where the base layer is dark become