Blender Git Loki

Eevee: Render: Allow cancel during probe update.

Eevee: Render: Fix softlock if rendering before lazy shader compil ends.

Calling the rendering operator seems to kill any other WM_job running, leaving
uncompiled materials into a GPU_MAT_QUEUED state. This then made the probe update
looping indefinitely (all_materials_updated remaining to false).

To fix this, we resume compilation for materials that are in this state.
Cancelling Render before all material compilation could make certain material
remain uncompiled. Fortunately, this is not allowed as of now.

GPUMaterial: Fix non finished material status if shader has no output.

This wasn't producing any issue for now but it's better to make things clean.

Merge branch '28' into temp-object-multi-mode

Eevee: Fix temporal sampling not resetting.

World Probe update was not resetting the TAA.

This also reset the volume sampling in cases that needs it (world/grid probe diffuse coefs update).

Eevee: Fix bad Outlines after probe updates.

This was because the default matrices were not setup back after resetting the current TAA sample.

Merge branch 'master' into soc-2017-normal-tools

Fix T54299: crash rendering objects with motion blur disabled, after recent changes.

Merge branch 'master' into blender2.8

Cycles: reorganize tests in more evenly distributed groups.

Cycles: add constant folding to displacement nodes.

Heavy refactor of weighted normals code, especially 'keep sharp' part.

Before, 'keep sharp' was bsically:
* Overwriting everything just computed by 'single nor per vertex' code,
leading to a nice share of computations being tossed to nowhere.
* Re-implementing most of core clnor computaion code, only skipping all
'sharp edge' cases but the one defined by shapr edge tags. This was not
only bad for code maintenance and (reasonable) simplicity, it was also
introducing inconsistencies in how we define sharp edges, since
everwhere else in code we take into account sharp edge tag, flat face
tag, and 'smooth threshold' value (aka split angle) of mesh.

At first I though 'keep sharp' would need its own totally separated code
path, but thanks to some data structure tricks, it was possible to merge
most of both cases into single code. So this commit:
* Heavily factorizes and simplifies code, especially the 'keep sharp' case.
* Makes use of clnor spaces as generated by core BKE code to define
'smooth fans' that should have the same weighted normals, just like
anywhere else in Blender.

Note that since code is now using same functions in all cases, it also
naturally brings back vgroup support in keep_sharp case.

Also, this has been a fairly involved change, basic testing seems to be
OK, but more would be welcomed here. :)

Add clnor_spaces counter and opaque userdata pointer to clnor spaces.

Those will help with weighted normals modifier incomming refactor.

Fix type in comment

Depsgraph: Make timing profile a command line option

This way we can add even more statistics, even one which will be print
to the console.

Would be nice if we also have verbosity level control.

Cleanup unused code

UI: Change brush type icon and panel layout

Small modifications to some parameters and added text to type of brush.

Fix blenderplayer (tm)

Fix T54296: Cycles viewport render stuck on constant re-render

Need Clear ID recalc flag on load. Otherwise it's possible to have
some IDs considered always updated by Cycles, when they were saved
in a tagged-for-update state.

Thanks Bastien for feedback and review!

Cleanup: Remove duplicated condition