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Age	Commit message (Collapse)	Author
2016-06-16	BMesh Decimate: use doubles to calculate optimized position	Campbell Barton
	This allows the error threshold for calculating the optimized location to be much lower. Resolves visible artifacts w/ 1m-tri happy-buddha example.
2015-05-21	Fix T44780: Decimate planar creates concave edges	Campbell Barton
	Float precision was causing problems for decimate, small faces that create a nearly flat surface were detected as having no 'cost' to collapse.
2015-05-20	BMesh: decimate wasn't using face/edge centers	Campbell Barton
	When calculating quadrics, using the first-vertex isn't correct.
2014-03-20	Code cleanup: use bools	Campbell Barton

2012-11-07	fix [#33106] Decimate modifier/collapse give bad result	Campbell Barton
	FLT_EPSILON was too small to use when checking if the edge collapse result is an error. add invert_m3_m3_ex(), invert_m3_ex() functiosn which take an epsilon to check the determinant, saves calculating it twice per edge collapse.
2012-10-19	small quadric library ported from Laurence Bourn's LOD_decimator LOD_Quadric ↵	Campbell Barton
	class. not used just yet.