The choice of the various epsilon values is critical to having geometrically
complex maps compile correctly.
The one which seems most important (so far) is the ANGLE_EPSILON. This one
needs to be quite tight to avoid "bad things" happening when you create small
angles between adjacent surfaces.
Another epsilon inter-relationship I discovered, is that it seems
CONTINUOUS_EPSILON needs to be larger than EQUAL_EPSILON. It seems to play
havoc with the t-junction code otherwise.
Signed-off-by: Tyrann <tyrann@disenchant.net>
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