Blender Git Loki

Cycles: Cleanup, indendation

Fix T53012: Shadow catcher creates artifacts on contact area

The issue was caused by light sample being evaluated to nan at some point.
This is root of the cause which is to be fixed, but is very hard to trace down
especially via ssh (the issue only happens on AVX2 release build). Will give it
a closer look when back to my AVX2 machine.

For until then this is a good check to have anyway, it corresponds to what's
happening in regular radiance sum.

Cycles: Fix possible race condition when generating Beckmann table

Two issues here:

- Checking table size to be non-zero is not a proper way to go here. This is
because we first resize the table and then fill it in. So it was possible that
non-initialized table was used.

Trickery with using temporary memory and then doing table.swap() might work,
but we can not guarantee that table size will be set after the data pointer.

- Mutex guard was useless, because every thread was using own mutex. Need to
make mutex guard static so all threads are using same mutex.

Cycles: Cleanup, indentation and wrapping

Cleanup: Math lib naming (use v3 suffix)

Sequencer: Cleanup, use more BLI utilities where possible

Sequencer: Use BLI math functions where possible

Sequencer: Avoid re-calculation index offset multiple times

Sequencer: Use funciton instead of macr oto avoid argument re-evaluation

Fix T52940: VSE Glow Effect Strip on transparent images has no blur

Error in falloff_angle range in last commit

Vertex Paint: move normal falloff into the brush

All related settings are already in the brush,
so it's inconvenient to switch panels to change this one option.

Vertex Paint: use view normal w/ 2D falloff

When projecting to the view, cull faces pointing
away from the view normal.

Vertex Paint: use brush front-face setting

Follow sculpt mode more closely by using the brush front-face option.

Sculpt: use tube falloff when calculating normals

Also apply 2D clamping for other tools when the option is set.

Sculpt: clamp normal to plane w/ projected falloff

Allows for editing outlines w/o pushing geometry towards/away from
the view.

Fix ruler access from search pop-up

D2831 by @1xundoredo

Cleanup: style

Fix T52514: don't clear filename when dropping directory path in file browser.

Fix T52998: disabled menu entries responding to key shortcuts.