Blender Git Loki

NLA Editor: Operator to add AnimData to selected objects so that they can appear

This commit introduces an operator in the Add menu - this operator ensures that
all selected objects have AnimData attached to them (even if they don't have any
actions/drivers yet). By doing this, these objects can at least appear in the
NLA Editor, which will allow them to have strips added to them in future without
having to create throwaway actions first (NOTE: there's still some stuff coming
to allow that).

Also, renamed NLA_OT_delete_tracks -> NLA_OT_tracks_delete

Bugfix: Filtering option in NLA Editor to include AnimData blocks with no
actions or NLA data attached was broken

Looks like a typo whcih somehow slipped in at some stage, as I remember that
this used to work at some point 2 years ago!

fix reading out of buffer bounds for recent vertex paint commit.

Remove OPTYPE_REGISTER flag from click handler operator for anim editors

1) It made no sense to show this as the last operator which was used, since
these can only be used from the anim editors (and not the 3D View where this
panel appears most of the time)
2) Mouse select operators in other places didn't do this
3) There aren't really any editable parameters for this operator anyway
4) It's highly dependent on valid mouse coordinates as input.

Apart from that, undo still works fine, so no need to really keep this here.

style cleanup: odd indentation

More AnimData selection fixes

* Not all supported datatypes would show up in the NLA Properties Region when
selected
* Clicking on the name part of the "Active Action" tracks now selects the
AnimData block that action is attached to

Bugfix: Selecting AnimData "expanders" in AnimEditors works again

Somewhere along the line, this functionality broke, even though the code to
handle these settings was still in place for many of these. The main implication
of this fix is that it should now be possible to select a particular AnimData
block, which makes it possible to do things such as changing the action
associated with that AnimData block (i.e. via the "Animation Data" panel in the
NLA Editor), as well as other operations which I've had on the todolist for a
while. Stay tuned!

Fix silly mistake that could lead to crash. Also, slight cleanup/rename
and comments

Support for textures in vertex painting.

Developer notes: this commit does painting in sRGB space. Since colours
are stored im byte per component formats, expect this to have the usual
dark fringing issues. Speed wise vertex paint could use some
optimization, for instance we could store the screen space vertex
positions on initialization like we do for texture painting, but this is
for another time. Also noticed that vertex painting suffers from the
subsurf + mirror issue too :/

Apart from that it's quite exciting how easy it is to add support for
texturing now that proper abstractions for texture sampling have been
done :)

Expose input stroke samples for image painting.

Two new Features:

* Support for Rake in projective paint (2D painting will be a separate
commit)
* Support for smooth stroke across all paint systems

Fix #34526: crash using mask modifier + subsurf + UV map.

WM: remove "No (valid) startup.blend found" message printed on startup, can be useful for debugging but hide it for normal usage.

Fix #34551: blender crash rendering with save buffers.

Problem was the new usage of access() on Windows, this doesn't accept X_OK. Also wrapped _waccess so that UTF-8 paths work.

fix for 2 errors where the 2d arrays were used as 3d. (out of bounds read).
also minor code cleanup.

Fix #34492: clipping border not working with GLSL/matcap and Nouveau drivers.

solidify modifier: thickness clamping helps prevent self intersections when there are small details on a larger model.

Fix for build error with previous commit, seems the order of #includes matters here.

Fix #34481: camera focal length and sensor size did not use units yet, now they do.

I've added a separate camera unit type. It's a bit strange to have an exception for
this but it ensures units are shown in familiar millimeters and it also ensures
backwards compatibility.

Fix #34626: voxel data texture can't read > 2GB files on Windows.

Also fixed BLI_fopen not being used for AVI movie files, which meant AVI read
could fail reading a file from a path with special characters on Windows.