Blender Git Loki

Make write code theorically fully compatible with static override.

Readfile.c already was, since it's more generic code there (ID level).

Merge branch 'master' into id_override_static

Conflicts:
source/blender/blenloader/intern/writefile.c

Fix (unreported) Object previews being written even for skipped objects.

Merge branch 'master' into id_override_static

Cleanup writefile code a bit.

Modernize some of it a bit, saves quite some lines of blabla (using
shile instead of for loops... tsssts...).

CMake: Remove MOTO library dependency when it is not needed

It is not necessary to add MOTO library dependency when we use
WITH_IK_SOLVER (now it uses Eigen) or we use WITH_MOD_BOOLEAN (it was
used by bsp intern library some time ago but it is not present in the
code anymore).

Reviewers: mont29, sergey

Subscribers: mont29, sergey

Differential Revision: https://developer.blender.org/D2477

Specify the correct size of the BVHTree of edges

~edge_num~ edges_num_active
Not always all the edges enter in the build

Standardization and style for BKE_bvhutils

Add `bvhtree_from_mesh_edges_ex` and callbacks to nearest_to_ray (Similar to the other functions of this code)

Remove any reference to scene->base from the old viewport code

This allows non-clay engine to see the objects as well, even if their code will be dropped later

Base refactor 4/4

Rebase ObjectBase > Base

Base refactor 3/4

Rename Base > BaseLegacy

Note manual changes on:
* deg_builder_nodes.h
* rna_object.c
* KX_Light.cpp

Rna is still using Base directly for the ObjectBaseLegacy rna object.
Depsgraph change will be removed later.

Base refactor 2/4

Include extra legacy values in ObjectBase struct

Base refactor 1/4

Rename Base.flag > Base.flag_legacy

Missing Base to be ObjectBase convertion for mesh join operator

Fix 'public' global 'g_atexit' var in Blender.

No reason to not make this private to this file, and it gave conflict
when using bpy as module and loading it in a GLib application (which
also has a g_atexit var).

OpenGL immediate mode: interface_draw.c (cont)

ui_draw_but_HISTOGRAM
UI_draw_text_underline (untested)

Merge branch 'blender2.8' into render-layers

Fix compilation error after recent change

OpenGL immediate mode: interface_draw.c (cont)

Replaced GL_POLYGON in various places.
Ported UI_draw_roundbox_unfilled

Add shortcuts for unsigned int, short, long and char

Feel free to use those in the new code.

And stay away from simple "unsigned".