Blender Git Loki

apparently fixed the cuttergroup bug (was an incorrect bbox test) + silenced 2 warnings

fix attempt for numerical instabilty with cuttergroups + a couple of minor fixes

as workaround you could use particlehelper and uniform together with cuttergroups

Cycles: Switch to reformulated Pluecker ray/triangle intersection

The intention of this commit it to address issues mentioned in the
reports T43865,T50164 and T50452.

The code is based on Embree code with some extra vectorization
to speed up single ray to single triangle intersection.

Unfortunately, such a fix is not coming for free. There is some
slowdown for AVX2 processors, mainly due to different vectorization
code, which caused different number of instructions to be executed
and different instructions-per-cycle counters. But on another hand
this commit makes pre-AVX2 platforms such as AVX and SSE4.1 a bit
faster. The prerformance goes as following:

2.78c AVX2 2.78c AVX Patch AVX2 Patch AVX
BMW 05:21.09 06:05.34 05:32.97 (+3.5%) 05:34.97 (-8.5%)
Classroom 16:55.36 18:24.51 17:10.41 (+1.4%) 17:15.87 (-6.3%)
Fishy Cat 08:08.49 08:36.26 08:09.19 (+0.2%) 08:12.25 (-4.7%
Koro 11:22.54 11:45.24 11:13.25 (-1.5%) 11:43.81 (-0.3%)
Barcelone 14:18.32 16:09.46 14:15.20 (-0.4%) 14:25.15 (-10.8%)

On GPU the performance is about 1.5-2% slower in my tests on GTX1080
but afraid we can't do much as a part of this chaneg here and
consider it a price to pay for more proper intersection check.

Made in collaboration with Maxym Dmytrychenko, big thanks to him!

Reviewers: brecht, juicyfruit, lukasstockner97, dingto

Differential Revision: https://developer.blender.org/D1574

Revert "Cycles experimental build v5, fixed version"

This reverts commit 82bcfb9b342ae261c1331fd4658229bc00f8531b.

Cycles experimental build v5, fixed version

THe first version had wrong blenderplayer stubs.

Includes:
- Denoising (temp-cycles-denoising branch)
- IES lights (D1543)
- Dithered Sobol Sampling (D2149)
- Microjittering
- Storing the current viewport render as a render result
- UDIM support (D2575)
- AOVs (D2443, D2444)
- Disney/Principled BSDF (D2313)
- Normal/Bump map correction to avoid black spots (D2574)
- Color management tweaks to ensure correct renders with non-Rec.709 primaries

Merge branch 'master' into datablock_idprops

Forgot those IDP_LibLinkProperty call on node sockets IDProps in previous commit...

Merge branch 'master' into datablock_idprops

Conflicts:
source/blender/blenloader/intern/readfile.c

Merge branch 'master' into asset-engine

Merge branch 'blender2.8' into gpencil_2.8

Add GL_LINE_STRIP_ADJACENCY support to Gawain

This primitive is used in geometry shaders like new grease pencil stroke shaders

Basic geometry for strokes working

Pending to remove rotation of the matrix

Fix: Icon offset for pie buttons

Remove culling

Use Opengl constant

Cycles: Pass m128 vectors by const reference

Merge branch 'master' into id_override_static

Merge branch 'master' into blender2.8

Conflicts:
source/blender/blenloader/intern/readfile.c
source/blender/windowmanager/intern/wm_window.c

Merge branch 'blender2.8' into gpencil_2.8

Fix lib_link_cachefile.

That one was:
* Resetting non-ID pointers (lib_link_xxx funcs should only affect ID
pointers, everything else shall be done in direct_link_xxx func).
* Even worse, always calling lib_link_animdata, even when
LIB_TAG_NEED_LINK tag was unset...