Blender Git Loki

Fix string formatting, fall through attr

GP: New Curve primitive and other primitive improvements

This commit adds support for new curve tool and adds more functionalities to the existing primitives, including new handles, editing, stroke thickness curve, noise, preview of the real stroke, etc.

Thanks to @charlie for his great contribution to this improvement.

Fix T59396 Grease pencil brush crash

The problem was the brush was not initializated because some code was missing (marked as ToDo)

GP: Add NULL checking for object

Fix T56185, T59351: bypass GL_PROXY_TEXTURE.. test on AMD GPU + windows

This replaces the test of consistency and capacity made with `GL_PROXY_TEXTURE_..` on AMD GPUs with one that checks only if the texture fits the limits of size and layer.

Differential Revision: https://developer.blender.org/D4081

Fix T59388: Blender crash upon F3 command search in VSE

We may not have an active object depending on where the operator is called from
or well if we simply don't have an active object :)

UV pin: Use ID_RECALC_COPY_ON_WRITE instead of the almighty 0

I suppose the cow tag is more correct for those generic/non-specific
tags. Thank you Sergey.

Fix T59381: UV editor - Pinned vertex missing update

Pinning doesn't really change the geometry, so we don't really have a
tag for this. Using '0' for now (same we use for Mark Seam).

I will check with Sergey Sharybin which flag to use instead.
We could use ID_RECALC_GEOMETRY to match the notifier, but even the
simpler ID_RECALC_SELECT would do it.

Fix UV editor missing/typo circle_select

NLA: insert keyframes correctly for strips with non-Replace mode.

NLA strips support using the keyframe values in a variety of ways:
adding, subtracting, multiplying, linearly mixing with the result
of strips located below in the stack. This is intended for layering
tweaks on top of a base animation.

However, when inserting keyframes into such strips, it simply inserts
the final value of the property, irrespective of these settings. This
in fact makes the feature nearly useless.

To fix this it is necessary to evaluate the NLA stack below the
edited strip and correctly compute the raw key that would produce
the intended final value, according to the mode and influence.

Differential Revision: https://developer.blender.org/D3927

Fix T59322: View Layer - Search not working

Basically uiRNACollectionSearch->but_changed was always NULL for the
search templates. So skip_filter would always be true, and we would
never filter.

An alternative fix would be to add the following to the begin of
`template_search_add_button_searchmenu`:
```
static bool always_true = true;
template_search->search_data.but_changed = &always_true;
```

GP: Added keymaps for Sculpt select

Still T58986 not fixed.

GP: Fix missing changes after rename CTX

Thanks to Charlie Jolly for find the bug.

fix shader editor errors when showing world shader tree

probably an oversight in rBd40bffa17f6d

Reviewers: brecht

Differential Revision: https://developer.blender.org/D4079

Merge branch 'master' into blender2.8

Dependencies builder: Don't rely on system-wide PugiXML

Fix broken particle distribution after recent fix

Fix wrong color in center of HSV circle picker, after recent changes.

Fix T59358: Wrong status bar keymap for release confirms and right click select.

Differential Revision: https://developer.blender.org/D4077

Fix T59182: Blender 2.8 win64 crashes on start