Blender Git Loki

Fix crash on startup on macOS, after recent framebuffer refactoring.

Undo: remove particle undo push

Was only called on copy particle system
which is already doing an undo push.

Cleanup: editor BKE_main includes

Undo: replace global access w/ ED_undo_stack_get

While I'd like to avoid using this too much since the operator
system should handle.
It's less trouble than accessing it inline each time.

Fix mode switching error on undo

For 2.8 there is already a utility function for this,
wrap it - avoiding an undo step.

Correct own error in string lookup

Move to Collection: Reduce memory leakage

This is really minor but anyways, now it will only leak if you cancel the menu.
And that only if htis is the last time you called this operator before closing
Blender.

Move to Collection: Use automatic fallback name for new collections popup

Collections: API to get automatic name of new collection

Move to Collection: Popup for naming new collection

Fix blenderplayer (tm)

PyAPI: Add PyC_Tuple_Pack_F64 utility

Build: add WITH_OPENVDB_3_ABI_COMPATIBLE option.

Better fix for T54457. It seems Debian compiles OpenVDB without ABI 3
compatibility, while Arch does enable it as is the default in the OpeVDB
CMake build system.

So now there's an option that the distribution can set depending on how
they compile their OpenVDB package.

UI: Fix: Center vertical scrollbar circles.

UI: Perf: Batch Trias with widgets.

This remove another portion of imm calls and reduce overall drawcall count.

Cleanup: remove redundant imbuf return values

Some functions always returned the input argument
which was never used.

This made code read as if there might be a leak.

Now return a boolean (true the imbuf is modified).

Allow zero samples for VFX Blur

When the number of samples is set to zero, the blur is dissabled, but this can be used to get effects animating the samples parameter.

If the zero is not a valid value, it is impossible to disable the blur with only this parameter.

Partial fix for T54491: Use a more accurate solution to calculate the frustum boundbox

Fix reproject error drawing lines

The reproject was done two times and must be done only once.

Build: fixes for the Intel compiler versions 2016, 2017, 2018.

Differential Revision: https://developer.blender.org/D3109