From: The World In Your Head by Steven Lehar
Fig. 4.13 (A) A texture gradient stimulus that promotes the perception of a sloping plane in depth. (B) If interpreted in the plane of the page, this suggests a nonuniform spacing of texture elements. (C) When interpreted at the proper slope in depth, the same texture maps to a uniform spacing in the perceptual representation, because the closer spaced dots at the top of the pattern map to a greater distance in depth, where (D) the spatial scale of the representation is correspondingly reduced, so that the closer spacing of the texture elements is perceived as a uniform spacing, rendered at reduced spatial resolution.