Rendering Techniques

shading not outline
visually distinguish items with less pixels


show overlap
calculate with stencil buffer

transparency, stereo
only for interactive/transient exploring

[Interactive Information Visualization of a Million Items 
Jean-Daniel Fekete and Catherine Plaisant, Proc InfoVis 2002
http://www.cs.umd.edu/local-cgi-bin/hcil/rr.pl?number=2002-01]
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