When duplicating a layer collection directly linked to the view layer we copy
the collection and link it.
For all the not directly linked layer collectionns, we try to sync the layer
collection flags, overrides, ...
Also we make sure the new collection is right after the original collection.
We also expose this in RNA, via collection.duplicate().
Was happening when viewport visibility on the particle system is disabled.
This became an issue after c45afcf, but the actual issue goes a bit deeper
and the following aspects were involved:
- Relations builder for particle system was ignoring particle system if
it's visibility is not enabled for viewport. This is something what
shouldn't have been done -- depsgraph relations are supposed to be the
same no matter if it's viewport or render.
- Relation builder was only dealing with duplication set to object, but
was ignoring group duplication.
This is technically a regression in 2.79a-RC as well, so would need to
backport this fix to the branch after extra testing is done here in the
studio.
This is rather a workaround to avoid main thread freeing all glyph caches
at the same time as sequencer uses fonts to draw text sequences.
Ideally we need to either make cache more local, or user-counted or to make
somewhat more global locks. All this ends up in a bigger refactor which is
better for 2.8. For the meantime let's make Blender more stable with a tiny
workaround.
Downside is that keeping zooming things up and down in interface during render
will increase memory usage by unused glyph caches. It's not too bad though,
all unused caches will be freed first time at area zoom after render.
Thanks Bastien for review!
Behavior is expected to be simillar to 'make proxy' on linked groups, it
basically allows you to select which object in the group will be to
'root' override (usually, the armature), checks which other objects
needs to be overridden as well, overrides the group itself too, and
instantiates the group and the root overridden object.
It seems to be working, though handling of armature deformation is kind
of totally broken in blender2.8 currently (modifiers...). ;)
At some point, we could probably think about removing IRIS file format
support, don't think there are much of those around anymore. But for
now, let's add a translation context to wipe effect. :)
Reported in T43295 by @blend-it, thanks.
