Blender Git Loki

Math Lib: add divide_floor_i

Integer division that floors on negative output (like Python's).

BMesh: move bridge tools stepping logic into macro

Also use floor division since regular division was giving a bias
on negative error values.

BLI_utildefines_iter: Use for iteration helpers

Fix T53143: Knife Crash after Grid Fill

BM_ELEM_INTERNAL_TAG flag wasn't ensured to be cleared.

Use custom SWAP macro for swapping userdef data

Avoids complicating the common case

Revert "BLI_utildefines: Support SWAP macro with two args"

This reverts commit d749320e3b10161430bc4cb7dd92edb63712bf8c.

It's possible the container struct is larger,
we could do sizeof checks that falls back to memmove
but rather avoid complicating things.

Fix T53637: Keymap from app-template ignored

Addon's were also ignored

Fix T53274: Saving template prefs overwrites default prefs

WM: don't load preferences on 'File -> New'

User preferences are now only loaded on...

- Initial startup.
- Factory-settings.
- Setting app-templates.

BLI_utildefines: Support SWAP macro with two args

WM: load UI for new file, even when pref disabled

Loading startup file always loads the UI now.

mblur for fm use centroids / use vertices was missing on remesher, some crash fixes

crash fixes, was accessing non-existing layers

deform motionblur support for FM and remesher with variable topology

furthermore some tweaks to final solid mesh generation and trigger stuff
option to only output particles as vertexcloud in remesher

fixed some crashers

first attempt of deform mblur with remeshed particles, but it still has issues

crash fix in updateAccelerationMap, forgot to check for dm being null

fix for transformation issue with particle remeshing

fix for presets, forgot some commas

Fix T52871: `BLI_polyfill_beautify_quad_rotate_calc_ex` was mistakenly considering the state as degenerated