- Cosmo does not scale its window according to the size of the world being displayed (some browsers
do).
- There are no cues as to orientation or scale.
- The inside of a wall is the same colour as the outside.
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- Viewpoints allow the scale of common projections to be predefined.
- An orientation device can be included; as can a scale (but that's more difficult to design and
use)
- Inside and outside of wall can be differentiated by colour, transparency, and other attributes.
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