Spatial Cues in 3D Visualization - Ambient Intelligence for Scientific Discovery - page 125

powerofstereoviewingasadominantcue,thereisaneedfortestingthee-
cacies of additional pictorial cues against this baseline 3D cue. The use of real
time, moving object shadows to convey depth information is but one example of
a 2D cue that was impractical to use just a few years ago.
Finally, we need more research investigating how depth cues are integrated
in assisting visual, spatial task performances, particularly in tasks extracting
information embedded in novel visualizations. To this end, it would be useful to
work toward a taxonomy of prototypical visual tasks that are performed with
computers, particularly those in which information is extracted from visual in-
terfaces, and to develop conceptual and/or mathematical models explicating how
particular cues, or sets of cues, are integrated so as to improve task performances.
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