Blender Git Loki

Cleanup, move 2D paint stuff to their own file.

Armature Importer fix.
Bone length and tail values.

Fixes for brush size and overlay in image editor

merge with trunk 48524

ArmatureImporter.cpp refactor.

Export Armature fix.
Instead of exporting pose_mat, exporting arm_mat now.

Armature Import Fix.

- bf_fbx: fix bug that caused fbx file filter to fail.

- bf_fbx: FBX gets its own module, menu item and file handling (even though the import function currently just invokes bf_assimp).

Fixes to synchronize rake overlay with actual result for texpaint in 3D
view.

Added additional manipulators for scaling/translating in two dimensions at once, and added mouseover highlighting for the manipulator handles.

More shameless hacking, make mapping mode depend on the tool. I really
have to expose support for mapping modes in image paint too. Only area
is really hard to support anyway...Now that overlay sort of works, it's
plain that the overlay is not exactly as it should be for texpaint.
Working out why not.

Extra/Ultra/Super/Dooper/Uber hackish commit to set mapping mode of
texpaint brushes to tiled, same as they behave currently. Unfortunately
there's no straightforward way to detect which brush goes to which paint
mode so a version patch is hard to write.

Rename sculpt_paint_capabilities to paint_capabilities, only expose
mapping options for sculpt brushes (until properly supported, if ever,
for texpaint too)

Important! Revert to texture unit 0 before resetting matrix or we get
corruption in the viewport on rake or rotated brushes.

Constraint export modification.

Overlay for Tiled style brushes. The implementation uses openGL
multitexture to minimize texture uploads. The curve strength is written
to a separate texture and modulated with the view texture at runtime.
Unfortunately, I haven't found a way to get a consistent result with the
rest of the brushes because this would require inverting the alpha after
the texture combine operation.

Fixes, still not there, fighting with TexEnv currently

Add code to properly support tiled mode overlay. Not functional yet but
I am positive it's a matter of a few glTexEnv tweaks

A slightly different way of dealing with the shift problem that doesn't involve a hack. It also changes the design of the layer buttons slightly such that clicking one doesn't automatically reset the others, which I think may be a usability improvement anyway as their purpose is to act like layers, which should be independent of each other. To make up for this I've added a ctrl-click which acts as before, selecting a single layer to the exclusion of others.