/ic/ - Artwork/Critique

>>3066837
when your canvas is white (or any color other than the color of your ref's background, but especially white) you cannot see values accurately. just block it in, at the very least, as one value with the paint bucket if you don't want to spend too much time on it. Your values are so off it's not even funny. Also measurement issues. Reread keys to drawing or some shit or go watch dorien iten

>>1764558
>The eye thing they argued was that he painted one corner of the room slightly darker than the other corner, and the difference is said to not be visible to the human eye since they are far apart

It's a well known mechanism of the brain, see this optical illusion. Perception of the contrast is dependant on the context, and the encoding of the visual information in the brain is done by a "map". Different points of the eye are represented in different zones of the brain.
If two points are far apart a few degrees we cannot discern contrast well because the visual information of both points is processed in different parts of the brain.

a and b same 'color'

>>1460905
Better example of relative color perception.

A and B are the same color/value