Add new addon to gather some custom normals basic editing tools, for until we add real support for that in BMesh.

For now, only contains an op to flip custom normals (together with other normals).

Related to T46115.

Can be handy sometimes, especialy with files which should not be animated and yet contain animdata...

Take Two. Not really happy with our current baking API tbh, there are many things that look messy
(even inside Blender code, how can a func named 'ED_object_get_active_image' can be reserved to new shading system???),
but this should do it for now. Just avoid too much exotic node systems with Cycles and this addon,
and/or clearly select/activate the image tex node containing the picture you want to use as target.

Based on a patch by Edward Gabriel Rowlett-Barbu (Zadirion), many thanks.

Fixes T38241

Fix T45879: Object Animated Render Baker options not showing up in Render->Bake, with Cycles engine.

That addon was BC I think, but see no reason not to enable it for Cycles as well.

Patch by meta-androcto, thanks.

More a TODO than a bug actually, handling of skeys based on other skey was simply not implemented so far.

This revision aims to simplify assets and platforms listing by integrating their boolean on the same label line as their name.

Reviewers: Severin, #game_engine, moguri

Reviewed By: Severin, #game_engine, moguri

Subscribers: Severin, Genome36

Projects: #game_engine

Differential Revision: https://developer.blender.org/D741

Changed the way files get opened to a "with open() as file" statement. Makes for a easier to understand code as the file data manipulations are nested in that same statement.

Reviewers: moguri

Reviewed By: moguri

Subscribers: Genome36

Projects: #game_engine, #addons

Differential Revision: https://developer.blender.org/D1455

This was due to the fact that we generate temp meshes when applying modifiers -
but in dupliobject instances cases, this can be avoided.

Also cleaned up a bit mesh data area, and fixed wrong template user number in this case.

Grrrr, could have sweared I had done that since ages...

This revision fixes a bug with the lib folder creation. As Moguri stated in his add-on wiki, when downloading blender packages for different operating systems, you unpack them in the lib folder (assuming the folder was already created) and press the auto add platform button. Only problem is that when auto-downloading the packages from http://download.blender.org/release/ with the add-on, the lib folder is not created automatically for a new user.

Reviewers: #game_engine, moguri

Subscribers: Genome36

Projects: #game_engine, #addons

Differential Revision: https://developer.blender.org/D723

This file actually showed several issues:
*Not always using safe 'get_bind_matrix'
*Not protecting against zero-length bones in the force-connect area

Fix T45813: FBX export: add dummy stringification of custom props which are not directly supported by FBX format.

This allows some thrid party app to have someting to parse if needed.

Quite obviously, this only applies to exporter.

ke/map_ke are not official .mtl specs, but seem to be rather common extension.
map_ke was added three years ago to exporter only, this commit finishes the work
by adding ke/map_ke to importer, and ke to exporter.

NOTES:
* mtl ke is a color, while in Blender emit is only a factor, using diffuse color.
  this implies there is some loss of data during import here.
* I do not have the slightest idea about the range for ke values, so for now assuming
  a direct matching of Blender's emit value.

Looks like we need an explicit Scene.update() call here...

Fix T45756: FBX Export: bad handling of duplis (let's check on Object.is_duplicator, much cleaner solution).

Doubt to implement this any time soon, armatures and duplis are both complex area,
if you combine them together you get a Gordian knot (and have no right to cut it!).

Also, this commit fixes a stupid mistake - dupli objects types were not checked at all before...

First patch by SpitfireOnline

Fix T45516: Our index generators can produce values below -1, consider all negative indices as 'skip' flags.

Fix related to T45584: 'NLA Strips' animation export mode was not using 'Force Start/End Keying' correctly.

This add-on allows storing and restoring a group of bones for later use.
The groups can be named and linked to new files.

The groups can be found in the object properties tab of the properties
area for armature objects.

Previous 'simplifying' code was not handling correctly micro-fluctuations around zero
(caused by ugly float precision issues). Rewrote it more or less completely,
new code is simpler and only based on relative difference (by default, it
keys each time the diff is above 1e-4, and above 1e-4 * magnitude_of_values).

Might produce more keys in some cases, but at least 'noise' shall never be
exported again.

UI of exporter (and, to some extent, importer) was wildly rampaging available space with all its options.

Now we switch to some tab-like drawing, helps keeping things reasonable, and that categorization should
also help user to understand a bit better all those settings.

Also added some more 'UI-compacting' tweaks.

Let's hope 'muscle memory' bawling won't be too loud...

User request (see T45438).

Looks like our absolute max diff in animation simplification process was a bit too low,
raised it from 1e-6 to 1e-5, fixes the issue in reported file at least.