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297

Controlling detailChoosing detail ranges

Use a list of ranges for version switch points

If you have 3 versions, you need 2 ranges

Ranges are hints to the browser

range [ 7.5, 12.0 ]

viewer < 7.5	1st child used
7.5 <= viewer < 12.0	2nd child used
12.0 < viewer	3rd child used