document: Surface textures improve the robustness of stereoscopic depth cues This research develops design recommendations for surface textures -LRB- patterns of color on object surfaces -RRB- rendered with stereoscopic displays . In 3 method-of-adjustment procedure experiments , 8 participants matched the disparity of a circular probe and a planar stimulus rendered using a single visible edge . The experiments varied stimulus orientation and surface texture . Participants more accurately matched the depth of vertical stimuli than that of horizontal stimuli , consistent with previous studies and existing theory . Participants matched the depth of surfaces with large pixel-to-pixel luminance variations more accurately than they did surfaces with a small pixel-to-pixel luminance variation . Finally , they matched the depth of surfaces with vertical line patterns more accurately than they did surfaces with horizontal-striped texture patterns . These results suggest that designers can enhance depth perception in stereoscopic displays , and also reduce undesirable sensitivity to orientation , by rendering objects with surface textures using large pixel-to-pixel luminance variations
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