Bastien Montagne be72df4f06 BLI_math: add mat3_polar_decompose, interp_m3_m3m3 and interp_m4_m4m4.
mat3_polar_decompose gives the right polar decomposition of given matrix,
as a pair (U, P) of matrices.

interp_m3_m3m3 uses that polar decomposition to perform a correct matrix interpolation,
even with non-uniformly scaled ones (where blend_m3_m3m3 would fail).

interp_m4_m4m4 just adds translation interpolation to the _m3 variant.
2015-10-09 21:26:33 +02:00
2013-12-24 22:57:27 +06:00
2014-08-08 06:00:49 +10:00
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