Blender Git Loki

Cleanup: unused debug variable

Particles: initial support for forces in simulation node trees

The force node can now be used to control the behavior of particles.
Forces can access particles attributes. Currently, there are three attributes:
`Position` (vector), `Velocity` (vector) and `ID` (integer).

Supported nodes are: Math, Vector Math, Separate Vector, Combine Vector and Value.

Next, I'll have to split `simulation.cc` into multiple files and move
some stuff out of blenkernel into another folder.

Nodes: support more implicit conversions in simulation node tree

Functions: minor improvements

Cleanup: disable debug code

Functions: minor api improvements

GPencil: Replace "ShaderFX" with "Shader Effects" in RNA prop text

Nodes: support implicit conversions and incorrectly linked sockets

Fix: incorrect attribute type in network

Nodes: support vector math node in simulation node tree

Nodes: support math node in simulation node tree

Nodes: support Value node in simulation node tree

Nodes: move Math, Vector Math and Value shader nodes to c++ files

This required a little bit of refactoring, because we were using c-only
syntax for the gpu shader names. All tests are still passing.

UV: add path select operator that uses the selection

Instead of using the mouse cursor position,
this selects between existing selected elements.

Access this since picking a selection path doesn't
work from the menu.

Cleanup: remove unused function

Cleanup: spelling

Docs: remove reference to PYTHONHOME

This is no longer used by default, when '--python-use-system-env' is set
there are many Python environment variables, don't list them in
Blender's help message.

UI: UV: Add Select Shortest Path to menu

This matches the 3D Viewport

Fix T78662: Cycles baking fails if denoising is enabled, after recent changes

This is not supported yet.

Fix build error building without OpenImageDenoise