User notes:
The outliner so far was a great system to handle the object oriented workflow
we had in Blender prior to 2.8. However with the introduction of collections
the bloated ammount of data we were exposed at a given time was eventually
getting on the way of fully utilizing the outliner to manage collections and
their objects.
We hope that with this filtering system the user can put together the outliner
with whichever options he or she seem fit for a given task.
Features:
* Collection filter: In case users are only focused on objects.
* Object filter: Allow users to focus on collections only.
* (Object) content filter: Modifiers, mesh, contrainst, materials, ...
* (Object) children filter: Hide object children [1].
* Object State (visible, active, selected).
* Compact header: hide search options under a search toggle.
* Preserve scrolling position before/after filtering [2].
[1] - Note we still need to be able to tell if a children of an object is in a
collection, or if the parent object is the only one in the collection.
This in fact was one of the first motivations for this patch. But it is to
be addressed separately now that we can at least hide children away.
[2] - We look at the top-most collection in the outliner, and try to find it again
after the filtering and make sure it is in the same position as before.
This works nice now. But to work REALLY, REALLY nice we need to also store
the previous filter options to be sure the element we try to keep on top
was valid for both old and new filters. I would rather do this later though
since this smell a lot like feature creeping ;)
Remove no longer needed display options:
* Current Scene (replaced by View Layer/Collections)
* Visible (replaced by filter)
* Selected (same)
* Active (same)
* Same Type (same-ish)
How about All Scenes? I have a patch that will come next to replace the current
behaviour and focus only on compositing. So basically stop showing the objects
and show only view layers, their passes and collections, besides freestyle.
Also, while at this I'm also reorganizing the menu to keep View Layer and
Collections on top.
Developer notes:
* Unlike the per-object filtering, for collections we need to filter at tree
creation time, to prevent duplication of objects in the outliner.
Acknowledgements:
Thanks Pablo Vazquez for helping testing, thinking some design questions
together and pushing this to its final polished state as you see here.
Thanks Sergey Sharybin and Julian Eisel for code review. Julian couldn't do a
final review pass after I addressed his concerns. So blame is on me for any
issue I may be introducing here. Sergey was the author of the "preserve
scrolling position" idea. I'm happy with how it is working, thank you.
Reviewers: sergey, Severin, venomgfx
Subscribers: lichtwerk, duarteframos
Differential Revision: https://developer.blender.org/D2992
This operator not only links a collection, but it creates a new one and then it
links it. Although the preferrable method for users to handle their collections
is when viewing the "Collections", let's explore this workflow for now.
Suggested by Pablo Vazquez, thank you.
Headers should not have operators as much as possible. The exception here is
for datablocks mode when you want to see the active keyset.
Edit menus on the other hand should be clearly distinct from the RMB context
menus. Edit menu options should be only the ones that apply to the entire
outliner, regardless of the selected element.
Context (rmb) menus should be related to the element you RMB on to invoke the
menu. I'm also taking this opportunity to start bringing the context menus
to Python. There is little reason not to, and it helps editing them (In this
case I'm doing it only for the Scene Collection one).
Using GL_RG16I texture for the hit coordinates increase tremendously the precision of the hit.
The sign of the integer is used to 2 flags (has_hit and is_planar).
We do not store the depth and retrieve it from the depth buffer (increasing bandwith by +8bit/px).
The PDF is stored into another GL_R16F texture.
We remove the raycount for simplicity and to reduce compilation time (less branching in refraction shader).
Brushes themselves are still affected by the mask, but the viewport is not
showing the mask. This way it's easier to see details while sculpting.
Studio request by Julien Kaspar
For experimental options, outside the scope of typical preferences.
While templates are developed we might want to make changes
to behavior which aren't fully compatible with typical work-flows.
Instead of mixing these options in with current preferences
expose separately (we could even force disable them when templates
aren't int use)
Technically this was introduced in 01b547f993 when
exposing size and randomness for particles.
This "fixes" makes sure particle size and size randomness is always in the
Render panel when it affects the particle system (i.e., always unless using
advanced hair or hair that is not rendering groups/objects).
This allows a duplicator (as known as dupli parent) to be in a visible
collection so its duplicated objects are visible, however while being
invisible for the final render.
An object that is a particle emitter is also considered a duplicator.
Many thanks for the reviewers for the extense feedback.
Reviewers: sergey, campbellbarton
Differential Revision: https://developer.blender.org/D2966
Allow users to edit either the object group active collection or view layer one
We can't support users selecting the group collections from the outliner group
because that would be imply having an active group for the scene or workspace.
But the way it is now allows to see and edit the collection values after the
group is instanced.
Since we are ditching layers from Blender (2.8) we need a replacement to
control groups visibility. This commit introduces collections as the building
blocks for groups, allowing users to control visibility as well as overrides
for groups.
Features
========
* Groups now have collections
This way you can change the visibility of a collection inside a group, and add
overrides which are part of the group and are prioritized over other overrides.
* Outliner
Groups can inspect their collections, change visibility, and add/remove members.
To change an override of a group collection, you need to select an instance of
the group, and then you can choose "group" in the collection properties editor
to edit this group active collection instead of the view layer one.
* Dupli groups overrides
We can now have multiple instances of the same group with an original "override"
and different overrides depending on the collection the instanced object is part
of.
Technical
=========
* Layers
We use the same api for groups and scene as much as possible.
Reviewers: sergey (depsgraph), mont29 (read/write and user count)
Differential Revision: https://developer.blender.org/D2892
Instead of storing a single active view-layer in the workspace, one is
stored for each scene the workspace showed before.
With this, some things become possible:
* Multiple windows in the same workspace but showing different scenes.
* Toggling back and forth scene keeps same active view-layer for each scene.
* Activating workspace which didn't show current scene before, the current view-layer is kept.
A necessary evil for this is that accessing view-layer and object mode
from .py can't be done via workspace directly anymore. It has to be done
through the window, so RNA can use the correct scene.
So instead of `workspace.view_layer`, it's `window.view_layer` now (same
with mode) even though it's still workspace data.
Fixes T53432.
