Blender Git Loki

add RNA_property_is_set function, use for WM_menu_invoke to avoid double lookup and py api to de-duplicate some checks

rename RNA_property_is_set() --> RNA_struct_property_is_set() in preperation to add a second version of the function which takes the property rather then its name.

Fix #29836: stress not working as input for displacement texture. Previously it
would be computed after displacement, but I don't think this made much sense.

Changes composite node group of double edge mask node from FILTER to MATTE.

svn merge ^/trunk/blender -r43278:43294

svn merge ^/trunk/blender -r43220:43278 --accept postpone

Fix #29848: cycles not respecting dupli group visible layers, also exposed
DupliObject.hide property in API now.

Fix: toggling premultiply or color management not updating packed images.

Fix: cycles CPU device not being used when it should be on some multi-GPU
configurations.

dynamicpaint had some incorrect string sizes for layers names, use BLI string functions in more places too.

use BLI_strncpy and BLI_snprintf when the size of the string is known.

fix for sequencer unique naming which was missed with string length update.

Added mode-getting functions for GHOST under X11 (GNU/Linux).
Enabled xvidmode by default in cmake.
Patch approved by Campbell.

This patch implements mode switching (resolution changing) for full-screen games.
Hopefully, this should be platform agnostic. Requires WITH_GHOST_SDL.
This patch contains code from Quake 2 and bzflag.
Tracker: [#29839]

minor cleanup for string use - no functional changes
- use more logical names for strings, noticed too many strings called `str` when reviewing name patch.
- pass __func__ macro to uiBeginBlock(), quite a few names were wrong (copy/paste error).

Longer names support for all ID and other object names

This commit extends limit of ID and objects to 64 (it means 63 meaning
characters and 1 for zero-terminator). CustomData layers names are also
extended.
Changed DNA structures and all places where length constants were hardcoded.

All names which are "generating" from ID block should be limited by MAX_ID_NAME-2,
all non-id names now has got own define called MAX_NAME which should be used all
over for non-id names to make further name migration stuff easier.

All name fields in DNA now have comment with constant which corresponds to
hardcoded numeric value which should make it easier to further update this
limits or even switch to non-hardcoded values in DNA.

Special thanks to Campbell who helped figuring out some issues and helped a lot
in finding all cases where hardcoded valued were still used in code.

Both of forwards and backwards compatibility is stored with blender versions newer
than January 5, 2011. Older versions had issue with placing null-terminator to
DNA strings on file load which will lead to some unpredictable behavior or even
crashes.

bge camera actuator: -X and -Y axis

The camera actuator only allows to look the object from its front face.

Given that Blender takes -Y as the default forward orientation, the current
functionality doesn't let a camera to track an actor from behind.

This patch allows for -X and -Y axis tracking. This way a camera over the
shoulders of a character is possible (without resorting to rotate the
mesh/armature original orientation.

- patch reviewed by Campbell Barton, thanks

Fixed typo in comments for libmv build rules files

fix [#29794] Cannot hide faces in weight-paint mode

bug was introduced with cycles merge.

minor changes to BLF api use
- replace calls to BLF_width & BLF_height --> BLF_width_and_height
- no need to call strlen() on length value passed to BLF_draw(). this already checks for char.

Change how object menu selection works, use an operator with an enum rather then a menu with 'OBJECT_OT_select_name',

remove 'OBJECT_OT_select_name' operator since its no longer needed.