Blender Git Loki

Calculate epsilon values for interp_weights_poly to improve accuracy

interp_weights_poly_v2 would have too large epsilon values for small
polygons. To solve this we now calculate the appropriate epsilon value
so it can gracefully handle big and small values.

To make sure there was no regression, these changes were tested with the
files in T36105, T31581. Also with a surface deform modifier test file
attached in the differential below.

Reviewed By: Brecht

Differential Revision: https://developer.blender.org/D7772

Fix T76273 Glitches caused by glCopyImageSubData on windows + intel gpu

We limit this fix to Windows Intel GPU whose driver reports at most GL 4.4
support. This limits the fix to the range of reported GPU.

Fix T77358: Gpencil can't select geometry within transparent layers

This was an old check of opacity for editable layers, but with new system it's not needed because you can use the edit lines.

Fix T77520: GPencil viewlayer filter produce crash with masking layers

If a layer is used for masking, it cannot be filtered by viewlayer because the masked layer needs to have the mask layers in the draw pipeline.

This check is only done in final render.

Fix T77164: scaling/rotation fails for 3 selected NURB points

Fix T77156: GPencil view layer filter by layer not working

This was removed by error during the refactor done in 2.83.

Differential Revision: https://developer.blender.org/D7909

Reviewers: @fclem

Fix T77456: Broken vertex paint undo on high-poly objects.

This is a critical fix that should also be backported to 2.83.1

Fairly stupid bug in fact, code detecting changes across undo steps was
assuming that each BHEAD (a block of data in blendfiles) would not be larger
than one memory chunk... Which is the case in alsmost every situation,
besides some super-heavy geometries, and other similar things (images
would also be affected e.g.).

Fix T77448: Camera Solver constraint can't be converted to f-curve

A regression caused by c57f65c088a9 as a fix of another issue.

Added an exception for camera solver as that is always pointing
to camera object.

Since this is a regression which happened in 2.83.0 this change is
a candidate to be ported to the 2.83.1.

Fix T77367: Blender's snap package ignores command line options