Blender Git Loki

Fixes for SplineIK:

* Ensure that when new constraints are created, the new settings have sensible
default values.
TODO: we need to version-patch old files

* Fix problem with variable shadowing (which wasn't causing problems AFAIK)

Bugfix: The "bulge_min" setting for the Stretch To constraint prevented bones from shrinking below 1.0 scale

From the looks of things, this was a typo. The result was that if you had a bone
with the minimum volume restriction in place, the bone would not get any thinner
when it was stretched out.

Pataz-Gooseberry Request: Limits on Volume Preservation for Spline IK

This commit adds a new type of volume preservation mode to Spline IK
which makes it possible to set limits on the minimum and maximum
scaling of bone "fatness".

* The old volume preseving mode has been kept but renamed, to avoid
breaking old rigs. "Volume Presevation" uses the new method, while
"Inverse Preservation" is the old one.

* The code and settings for this new xz scale mode are directly lifted
from the improved Stretch To constraint

Fix T43128: Headerless panels are reorderable on Windows

Seems like a weird issue, but to sort panels "qsort" is used, which works slightly different on Windows. So all I had
to do was cleaning up the logic in find_highest_panel so that headerless panels are sorted, but that it absolutly not
allows headerless panels to be above normal panels.
I made sure it works fine on Linux as well.

Cleanup: add missing MovieClip entry in RNA's id_type_items, and respect alphabetical sorting (on UI names for enums, on ID codes otherwise).

correct last commit: less cryptic camera check

Fix T43206: region_2d_to_origin_3d has no ortho offset

With ortho views the value would be aligned to the 'rv3d->ofs'
Now it works in camera ortho & regular ortho views.

BMesh: Tweak behavior for select more/less

Stepping over faces gives overall nice results but it stopped wire edges from working.
Now step over wire too.

Fix: Don't show filesel buttons when no operators running

Fix T42754: File-Selector lost on fullscreen exit

There was a hard-coded check to exit the fileselector when restoring a view.

Now, when space types differ, flag areas as temporary and switch back to the previous type only in this case.
This means you can select a file while having a file-selector space type open, and not loose it every time.

Fix OpenGL Context freeing

Second try to fix missing previews of mat/tex/etc. in .blend files.

This time, it's a dedicated operator user has to run before saving the file.

And it recursively check all IDs linked from each scene, therefore rendering
materials etc. previews using a scene they are used in.

Note the renderengine issue is not completely addressed this way
(existing code for icon previews seems to ignore completely other engines,
and IDs not linked anywhere (fake-user ones) will be rendered with current scene's engine
as fallback, also you can get a material linked to an hidden object in a scene, etc.).

Reviewers: sergey, campbellbarton

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D980

Cycles: Fix crash after recent BVH changes on empty BVH trees

It's apparently not nice to access 0th element of zero-size vector in C++.

BLI linkstack macros: do not prepend the 'anti-namespace-collision' to var name.

Issue was, in case of using such stack within a structure, the '_' underscore
would be added in front of struct variable
(e.g. `my_struct.my_stack` would lead to (try to) using `_my_struct.my_var_pool` ...).

Now underscore is appended to var names, ugly but working.

Note did not touch to the alloca variants of those macros, since in this case enforcing
a pure local use is best I think.

Cycles: Fix compilation error on platforms without SSE support

Overview this in one of the previous BVH commits.

Cleanup: rename BKE's 'object_data_transfer' to 'data_transfer' to avoid same file names with ED_object's one.

Avoid type re-definition for as long C11 is explicitly enabled in compilers

Fix typo in OCIO configuration file

Cycles: Add leaf primitives sanity check asserts to the kernel

This way we'll notice that leaf splitting didn't happen correct pretty easily
in debug builds.

There'll be absolutely no impact on release builds.

Cycles: Enable leaf split by primitive type and adopt BVH traversal for this

This commit enables BVH leaf nodes split by the primitive type and makes it
so BVH traversal code is now aware and benefits from this.

As was mentioned in original commit, this change is crucial to be able to do
single ray to multiple triangle intersection. But it also appears to give
barely visible speedup in some scene.

In any case there should be no noticeable slowdown, and this change is what
we need to have anyway.