1d88e19c32
The crash happens in specific cases when doing euclidean resection in cases when first 3 3D estimates are correlated. While it is a bit cryptic on user level, what it could mean is: - Either there are overlapping markers - Or the optical system is highly out of calibration. Either of these cases is not the primary goal to support with camera solvers in Libmv for the time being, so while this change avoids the crash there is possibility to make algorithm more robustly handle the tracking data and potentially give better result. Such correlation via some intermediate steps leads to the algorithm attempting to perform SVD decomposition of a matrix with NaN values in it. The exact reason of the crash is not super clear as it happens deep in the JacobiSVD decomposition code in Eigen and caused by invalid index somewhere. It might be a bug in Eigen which doesn't do range checking, hoping that the math does not fail in cases like NaN and inf. Pull Request: https://projects.blender.org/blender/blender/pulls/145301
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