Blender Git Loki

Revert "Tag update when using particle edit brushes"

This reverts commit 5dba0b68f8ba9e9d700c75be6595fb09e6d5c5ea.

Old code was supposed to use this function from draw, and we must never
poke depsgraph from drawing.

Workbench: Studio light better diffuse sampling

Increased steps of diffuse sampling for narrow hightlights

Workbench: Support HDR files as HDRI studio lighting

support Radiance HDR files for studio lighting.
Fix crash when studiolight folder does not exist.

Merge branch 'blender2.8' into greasepencil-object

UV: multi-object project bounds

D3368 by @Al with own edits.

Merge branch 'master' into blender2.8

Cleanup: quiet GCC -Wtype-limits

While the warning can normally be disabled, we don't have have as much
control of warnings when macros are used.

Merge branch 'master' into blender2.8

BLI_utildefines: re-ordering array delete macro

Eevee: Hair: Disable SSR for hairs.

SSR does not work with hair strands. Basically, the rays are too much
random to ever converge properly and just result in a soup of self
inter reflections.

So forcing it to not produce any SSR. Could potentially save some bandwidth
by not rendering hair to the SSR buffers.

Eevee: Hair: Fix normal distribution of previous commit.

Now it starts to look correct!

GPUTexture: Add Texture Buffer support.

This is needed by opensubdiv and can be helpfull in a lot of other cases.

Eevee: Hair: Remove old hack and replace by new hack.

This is a hack to properly shade wire hairs. Use stochastic sampling and
let TAA solve the noise.

At least it's way more correct than the previous hack.

EditMesh: Use tweak for extrude tool

Could too easily click to extrude without any offset.

EditMesh: show XYZ axis for extrude

Always show normal axis since this is the most used,
even when another orientation is selected.

Eevee: Fix lamp defaulting to no specular.

Was missing a default value.

Dynamic overrides: Add support to retrieve type of property from rna path.

Also added proper value accessor for booleans, so now
Object.display.show_shadows shall work nicely.

Fix 'add new dynamic override' func, could store NULL rna path string.

Do not generate the dynamic override data in case a valid RNA path
cannot be built.

New no-data RNA path sover: add another helper func.

That one is more helpful, allows to directly build the runtime list of
RNA items.

Fix missing path callback for new Object.display struct.