This makes the last time (`ltime`) stored in the rigid body world (`rbw`)
only be updated once a simulation step actually occurs, this prevents
another simulation step from being solved unless the current time is
exactly one frame after the last cached frame. Thus this prevents the
formation of gaps in the cache, such as seen in T50230.
Reviewers: mont29, sergey, angavrilov
Tags: #physics
Maniphest Tasks: T50230
Differential Revision: https://developer.blender.org/D2458
Now that some node types may have custom context, we need to handle that
in the (convoluted :| ) UI code of nodes as well.
Reported in T43295 by Gabriel Gazzán (@gab3d), thanks.
Fix is a bit ugly, but cannot think of another solution for now, at
least this **should** not break anything else.
And now I go find myself a very remote, high and lonely mountain, climb
to its top, roar "I hate proxies!" a few times, and relax hearing the echos...
This is annoying especially for exporters who do use mesh name, since it
broke any relation with actual Mesh naming in original Blend file.
Unfortunately, we cannot avoid the extra .xxx digits. ;)
Children where always getting at least one segment of fixed length...
Now fully hidden ones (zero length) get no segment at all.
Note that even very short ones keep getting one 'unit' length segment - would
rather avoid changing that at this point, given how complex children
particles 'length' can get with all kind of modifiers... Think we can
live with that for now anyway.
'Convert To...' Object operation has very weird effect of actually
working at obdata level, not object level, which means *all* objects
(even unselected/hidden/in other scenes/...) using same obdata will be
converted to new selected type.
IMHO this is very bad behavior, but... not a bug really, so do not
change this for now.
But at least, do not do that when working on some linked data, else it
leaves Blend file in invalid (incoherent) state until next reload.
So workaround for now is to enforce the 'Keep Original' option when some
linked object/obdata is affected by the operation.
Also fixed somewhat broken usercount handling in Curve->Mesh part.
Eeeeeek!^2 Calling unconditionnaly ID freeing `BKE_libblock_free()` on a
datablock (ob->data, i.e. Curve) that may be used elsewhere...
Veryveryvery bad!
Noisy change, but safe, and better do it sooner than later if we are to
rework copying code. Also, previous commit shows this *is* useful to
catch some mistakes.
Was internally a no-op operation, which only caused extra work
to be done during depsgrpah traversal and evaluation, without
making any measurable improvement.
Was just keeping the default '1' user from `BKE_libblock_alloc()`,
instead of using correct way to handle extra virtual user needed when we
want to keep unused datablocks around...
This was causing proxies updates on every frame, even if they
do not really change. Additionally, it was causing second round
of armature update when used from inside dupligroup (viewport
ensures all objects from dupligroup are up to date before draw).
DM evaluation code was simply never clearing the `deformedOnly` flag
when evaluating a generative modifier...
Quite astonishing this never got catched before, a lot of particle code
relies on valid value of this flag!!!
The Issue
=======
For a long time now MinGW has been unsupported and unmaintained and at this point,
it looks like something that we should just leave behind and move on.
Why Remove
==========
One of the big motivations for MinGW back in the day is that it was free compared to MSVC which was licensed based.
However, now that this is no longer true we have basically stopped updating the need CMake files.
Along with the CMake files, there are several patches to the extern libs needed to make this work. For example, see:
https://developer.blender.org/diffusion/B/browse/master/extern/carve/patches/mingw_w64.patch
If we wanted to keep MinGW then we would need to make more custom patches to the external libs and
this is not something our platform maintainers are willing to do.
For example, here is the patches needed to build python: https://github.com/Alexpux/MINGW-packages/tree/master/mingw-w64-python3
Fixes T51301
Differential Revision: https://developer.blender.org/D2648
We had handling of fully duplicated polygons already, but... absolutely
nothing to sanitize partially merged polygons! This were giving us
totally invalid geometry, with duplicated vertices in single poly,
invalid edges, etc.
Now we do check for invalid loops inside polys, and generate new edges
as needed to get only valid polys.
For some reason this was a nightmare to get running fully OK, playing
with old and new indices is really, really mind breaking.
This feature got lost with new auto-track API,
Added it back by extending frame accessor class. This isn't really
a frame thing, but we don't have other type of accessor here.
Surely, we can use old-style API here and pass mask via region
tracker options for this particular case, but then it becomes much
less obvious how real auto-tracker will access this mask with old
style API.
So seems we do need an accessor for such data, just matter of
finding better place than frame accessor.
Previous method was based on face-area, giving un-even results
based on topology and gave issues with zero area faces.
This method gives matching results for concave ngons and the same geometry triangulated.
Those shall not be considered while checking whether a to-be-made-local
ID will end up fully local, or still be partially used by linked data...
Even less since we already do have special handling of proxies later.
Fixes main remaining issue found with 04_01_H.lighting.blend Agent327
file, and allows us to switch back to optimized post-processing in
make_local code.
