Blender Git Loki

GPU: split GPU_material_from_nodetree in two

Add GPU_material_from_nodetree_find to avoid having to construct other
arguments which won't be used in the case the material is exists.

Fix own error removing texface

Setting the name crashed with NULL poly layer.

Fix own error removing texface

Using pointer offsets from different arrays

DWM: separate tangents from UV conversion

Prepare for different number of UV/Tangent layers.

GPU: GPU_generate_pass_new now takes vertex-attrs

Needed so we can tell which custom-data layers to use from the mesh.

cleanup in FLUID class

Fix missing globalsBlock in edit mode latice drawing

This was causing lattice vertices not to be drawn.

Cleanup: Improve debug messages

Fix T51913: Context tab for textures issue

The original code was doing a sanity check to see if existing index was
out of range. However the comparison was wrong.

So if the previous ct->user (active index of texture node) was larger
than then number of available texture nodes + 1 in the other material,
we would never re-set the index to 0.

Bug introduced on c31f74de6bb7.

There was an early attempt of fixing this (2b2ac5d3cc) but it was just working
by pure, luck. And failing in cases like the one from this bug report.

Cleanup: Remove unused uniform

Implement weight colors for lattices in draw manager

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

Conflicts:
source/blender/python/intern/bpy_props.c

LightProbes: Change 3d view display shape.

Introduce specific shape for each probe type to easily identify them.

Initialize index fields for shgroups

Merge branch 'blender2.8' into greasepencil-object

Fix error in GP modes for undo

When undo the special gp modes did not work.

Avoid load files with gp modes enabled

The new files must be loaded in Object mode and not in special grease pencil modes.

Fix typo in Eevee hair UV handling

Cleanup: remove unused function

mikktspace: minor optimization

Add a safe version of normalize since all uses of normalize
did zero length checks, move this into a function.

Also avoid unnecessary conversion.

Gives minor speedup here (approx 3-5%).