Blender Git Loki

GPencil: Increase default buffer size

Using spread the number of points is huge and for each expand of points there is a small flash on the screen, so keep a big buffer reduce the effect.

GPencil: First steps to implement spread for a segment

Still not working. Keep this commit to save the current status.

GPencil: Reformat spread code and prepare for sampled points

GPencil: Basic spread point functionality

Cleanup: clang-format.

Fix missing WITH_CYCLES_EMBREE in the build configurations

Fluid: Improvements in Phi grid display

* Changed field texture format from 'GPU_R8' to 'GPU_R16F' for level-set fields to avoid data normalisation.
* Fragment coloring for level-set fields is now dynamic and does not depend on transfer texture.

Cleanup: make it possible to include util_tbb.h in any order

Merge branch 'master' into soc-2020-fluid-tools

Fix T78112: VSE Sequencer/Preview crash after fullscreen

The region refresh callback wasn't called, which in the VSE ensures valid
region sizes and removes handlers of invisible regions.

Cycles: add Intel OpenImageDenoise support for viewport denoising

Compared to Optix denoise, this is usually slower since there is no GPU
acceleration. Some optimizations may still be possible, in avoid copies
to the GPU and/or denoising less often.

The main thing is that this adds viewport denoising support for computers
without an NVIDIA GPU (as long as the CPU supports SSE 4.1, which is nearly
all of them).

Ref T76259

Cycles: add denoising settings to the render properties

Enabling render and viewport denoising is now both done from the render
properties. View layers still can individually be enabled/disabled for
denoising and have their own denoising parameters.

Note that the denoising engine also affects how denoising data passes are
output even if no denoising happens on the render itself, to make the passes
compatible with the engine.

This includes internal refactoring for how denoising parameters are passed
along, trying to avoid code duplication and unclear naming.

Ref T76259

Python API: support integer default for bpy.props.EnumProperty

This must match the specified number in enum items, and is supported for both
static and dynamic enums. Previously dynamic enums did not support a default
value at all.

Fix build error on Windows after recent changes

Fix repeated UV vertices and their indices

`append`'s usage causes `export_mesh_eval->totloop` many UV vertices
being written to the OBJ file. There are duplicates in that list.

So _tot_uv_vertices is being used to track the unique ones.

Fix T77913: Incorrect handling of negative-scale bit in DRWResourceHandle

Reviewers: fclem

Differential Revision: https://developer.blender.org/D8103

Sculpt: rename default vertex color layer name from Col to Color

No need for abbreviation here, and helps avoid conflicts with old vertex
color layers.

Ref T76659

Cleanup: move TBB includes into own header

EEVEE: Fix crash when using motion blur without postfx blur

Fix memory leak calculating deform modifiers in edit-mode

This bug goes back to 2.80 but doesn't seem to have been reported.