Blender Git Loki

fix [#36105] Bevel UV Flicker
interp_weights_poly_v2/3 functions used much too small an epsilon value, caused flickering.

utility function for printing arbitrary sizes vectors.

fix [#36100] bevel lost selection
interpolating loop was copying face attributes including selection, checked all users of this function and its safe to remove the call (which is bad to begin with).

Fix bevel when there is a gap in faces around vertex.
Fixes bug #35927 (Vertex Bevel bug) but even edge
bevel didn't work on the example there. Problem
was with forming the proper ccw ordering of edges
around the bevel.
Also appears to fix bug #35582 (Bevel, weird results).

add BM_elem_attrs_copy_ex() which can take a flag arg to define which flags should be copied. (mainly to be able to avoid copying selection/hidden state)

Fix #36091: external render engines like Luxrender don't work well with the save
buffers option, it requires specific tile sizes and if they don't match what
OpenEXR expects file saving can get stuck.

Now I've made support for his optional, with a bl_use_save_buffers property for
RenderEngine, set to False by default.

fix [#36099] Undo crashes on an armature with ID-Properties
armatures undo state now stores ID-properties.

Code cleanup: de-duplicate display list minmax routines

Added an operator to match texture space to object's bounding box

This operator could be useful after recent changes to how curve's
texture space is calculated.

Move curve's boundbox and texspace calculation out of modifier stack

There were several issues with how bounding box and texture space
are calculated:

- This was done at the same time as applying modifiers, meaning if
several objects are sharing the same curve datablock, bounding
box and texture space will be calculated multiple times.

Further, allocating bounding box wasn't safe for threading.

- Bounding box and texture space were evaluated after pre-tessellation
modifiers are applied. This means Curve-level data is actually
depends on object data, and it's really bad because different
objects could have different modifiers and this leads to
conflicts (curve's data depends on object evaluation order)
and doesn't behave in a predictable way.

This commit moves bounding box and texture space evaluation from
modifier stack to own utility functions, just like it's was done
for meshes.

This makes curve objects update thread-safe, but gives some
limitations as well. Namely, with such approach it's not so
clear how to preserve the same behavior of texture space:
before this change texture space and bounding box would match
bevelled curve as accurate as possible.

Old behavior was nice for quick texturing -- in most cases you
don;t need to modify texture space at all. But texture space
was depending on render/preview settings which could easily lead
to situations, when final result would be far different from
preview one.

Now we're using CV points coordinates and their radius to approximate
the bounding box. This doesn't give the same exact texture space,
but it helps a lot keeping texture space in a nice predictable way.

We could make approximation smarter in the future or add operator
like "match texture space to object's bounding box".

Make fonts safe(r) for threading

Getting vfont data wasn't safe for threading, because it
was modifying font data which is in bmain and could be
shared by multiple objects.

For now made it so getting vfont uses critical section,
meaning vfont->data is initializing from inside a locked
mutex.

fix for bridge tool where the 2 loops overlap (typical use for scanfill), however its nice to support with bridge too since it can do subdivisions, handles customdata and fills in quads.

Merging r58148 through r58165 from trunk into soc-2013-depsgraph_mt

fix [#36090] Blender displays strange symbol in edge length

fix [#36089] crash when using a tiff without TIFFTAG_EXTRASAMPLES

fix for problem with edge slide where it would stop shapekey modifier from being applied (because of added vertices),
now, instead of making hidden copies of faces, the faces are copied into a temp bmesh.

also remove a hash that was being created and not used (old code).

bm_loop_interp_mdisps was doing multiple lookups in the same pointer in a nested loop. only need one, also avoid multiple layer lookups with mdisp calculation/smoothing

Fix #36053: slow GPU render with panorama camera + depth of field.

Fix #36082: animation playback not working after rendering of background scenes and
multiple render layer nodes. Also fixes issue with database free with vector blur
after recent thread safety changes.

Tag object-data level boundbox as invalid rather than freeing it

Object update used to free object-data level bounding box to trigger
it's re-calculation in the future. Such a freeing performed from
object update isn't thread-safe because mesh could be shared between
multiple objects.

Rather than freeing bounding box, tag it's as invalid, this is safe
from threading point of view and also prevents unnecessary memory
re-allocation.

Object-level bounding box is still reallocating, but think we could
change this easily in the future as well.