Clément Foucault b5bc2158a0 View 3D Grid: Improve precision and reduce code complexity
Instead of doing manual ray-plane intersection we use normalized positions
of the grid mesh and apply scaling after interpolation so that we keep
good precision even at really far distances.

Precision is now two order of magnitude better and does not produce the
same kind of artifact at lower clip start values.

This commit also cleanup the implementation.

Fixes T58918 Grid not appearing correctly at low clip start in 2.8
2019-01-18 16:30:05 +01:00
2019-01-16 00:27:10 +11:00
2019-01-18 15:17:21 +01:00
2010-10-13 14:44:22 +00:00
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