Blender Git Loki

Eevee : TAA : Fix conflict with outlines.

The previous view was incorrectly considered valid even if the persp matrix was different. So the history depth was mismatching.

Object Mode Engine: Small cleanup

Eevee : TAA : Change post process chain to allow more flexibility

This basically do not use hardware blending and do the blending in the shader.
This will allow neighborhood clamping if we ever implement that.

Eevee: Use fmod instead of floor.

bgl module: extend `gl_buffer_type_from_py_format_char` function to work with more string formats

Only basic types of character codes were being used

Merge branch 'master' into blender2.8

[build_deps.cmd] Turn down logging verbosity to normal.

[msvc] treat C4133 as error instead of a warning to mimic gcc's -Werror=incompatible-pointer-types

as requested by @campbellbarton and @mano-wii

--debug-gpu-shader: Dump GLSL shaders to disk

This is really convenient for development. Either for profiling the
generated shaders or to check if the generated code is correct.

It writes the shaders to the temporary blender session folder.

Cleanup: warning

Vertex/Weight Paint: Use PBVH for painting

2016 GSOC project by @nathanvollmer, see D2150

- Mirrored painting and radial symmetry, like in sculpt mode.
- Volume based splash prevention,
which avoids painting vertices far away from the 3D brush location.
- Normal based splash prevention,
which avoids painting vertices with normals opposite the normal
at the 3D brush location.
- Blur mode now uses a nearest neighbor average.
- Average mode, which averages the color/weight
of the vertices within the brush
- Smudge mode, which pulls the colors/weights
along the direction of the brush
- RGB^2 color blending, which gives a more accurate
blend between two colors
- multithreading support. (PBVH leaves are painted in parallel.)
- Foreground/background color picker in vertex paint

bgl module: Interpret a buffer as a bgl.Buffer

Differential Revision: https://developer.blender.org/D2857

fluid particles UI update

cleanup for adaptive time stepping

especially the timestep was too big and resulted in adaptive steps when adaptive stepping was actually disabled.

Code refactor: simplify CUDA context push/pop.

Makes it possible to call a function like mem_alloc() when the context is
already active. Also fixes some missing pops in case of errors.

Cleanup: unused function

Merge remote-tracking branch 'origin/master' into soc-2016-uv_tools

GP Palette Slots - Initial DNA structures

Start of support for GP "Palette Slots". These act like "Material Slots"
in that they allow a single GP datablock to refer to multiple Palette
datablocks, making it easier for the user to manage the set of available
palettes.

Code Cleanup - Clarifying names, comments, and shuffling fields for clarity

Cleanup: move accumulation structs out of sculpt-session

These were over-allocated to the size of all pbvh nodes.
Now only allocate as-needed,
using the total number of nodes under the brush.