Blender Git Loki

TexFace removal part 3

- MTexPoly structure & layer type.
- The 'Mesh.uv_textures' layers.
- DerivedMesh TexFace drawing.
- Scripts & UI.

Merge branch 'master' into blender2.8

Fix macOS python cmake install to work when switching lib directories.

It's a bit ugly but I couldn't find a better way to keep fast installs and
correct handling of switching between master and blender2.8 with different
lib directories.

Transform orientations: Make code match blender2.8 as much as possible

Basically reverts e3c12bb139250b7573b and parts of cbaaeb8d9b6c95.
Decided to keep things close to blender2.8 here, D2687 can apply the
needed changes separately then.
It's okay if removing custom transform orientations behave a bit glitchy
with workspaces, all issues should get fixed with D2687.

Merge branch 'blender2.8' into workspaces

Merge branch 'master' into blender2.8

improved setObstacleVelocity() function

now checking if obvel present before interpolating. also added some sanity checks

Merge branch 'blender2.8' into greasepencil-object

Fix compiler error for VS2017

a void function cannot return a value.

Merge branch 'blender2.8' into greasepencil-object

Fix error accessing tessface color in edit-mode

Was checking for loop-color in poly-layer.

Only calc split normals when auto-smooth is enabled

This matches cycles & derived-mesh

Fix/Workaround T51561: Disable split normals

TexFace removal part 2

- Derived-mesh drawing.
- All non UV members of TexFace structs.

MTexPoly is now redundant but keeping with a dummy member,
will check on complete removal later.

Cycles: Use falltrhough attribute to help catching missing break statements

Proper fix for crash loading old files with compositor

Now we keep all links around, even for sockets which were
implicitly renamed. And also ensuring new sockets have proper
storage.

Remove TexFace, per-face images

TexFace complicates the now more popular shading pipeline by having
per-face images, see: T51382 for details.

To keep the ability to select a per-material edit-image
(used with UV-mapping workflow), the material now stores an image
which will be set when changing images in edit-mode.

This is used as a bake-target when not using Cycles too.

Revert "Fix crash opening really old files with compositor"

This commit broke compatibility with newer files: due to rename
of Speed to Vector the links got lost.

This reverts commit 0e46da76b70a42bab2268942cba0e0d3e4ba47e8.

Cleanup: minor de-duplicate from last commit

Fix T51561: Normal maps fail w/ quad + eevee

Generalize derived-mesh tangent calculation so
it can be used by Batch cache creation too.