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This commit does the main integration of workspaces, which is a design we agreed on during the 2.8 UI workshop (see https://wiki.blender.org/index.php/Dev:2.8/UI/Workshop_Writeup)
Workspaces should generally be stable, I'm not aware of any remaining bugs (or I've forgotten them :) ). If you find any, let me know!
(Exception: mode switching button might get out of sync with actual mode in some cases, would consider that a limitation/ToDo. Needs to be resolved at some point.)
== Main Changes/Features
* Introduces the new Workspaces as data-blocks.
* Allow storing a number of custom workspaces as part of the user configuration. Needs further work to allow adding and deleting individual workspaces.
* Bundle a default workspace configuration with Blender (current screen-layouts converted to workspaces).
* Pressing button to add a workspace spawns a menu to select between "Duplicate Current" and the workspaces from the user configuration. If no workspaces are stored in the user configuration, the default workspaces are listed instead.
* Store screen-layouts (`bScreen`) per workspace.
* Store an active screen-layout per workspace. Changing the workspace will enable this layout.
* Store active mode in workspace. Changing the workspace will also enter the mode of the new workspace. (Note that we still store the active mode in the object, moving this completely to workspaces is a separate project.)
* Store an active render layer per workspace.
* Moved mode switch from 3D View header to Info Editor header.
* Store active scene in window (not directly workspace related, but overlaps quite a bit).
* Removed 'Use Global Scene' User Preference option.
* Compatibility with old files - a new workspace is created for every screen-layout of old files. Old Blender versions should be able to read files saved with workspace support as well.
* Default .blend only contains one workspace ("General").
* Support appending workspaces.
Opening files without UI and commandline rendering should work fine.
Note that the UI is temporary! We plan to introduce a new global topbar
that contains the workspace options and tabs for switching workspaces.
== Technical Notes
* Workspaces are data-blocks.
* Adding and removing `bScreen`s should be done through `ED_workspace_layout` API now.
* A workspace can be active in multiple windows at the same time.
* The mode menu (which is now in the Info Editor header) doesn't display "Grease Pencil Edit" mode anymore since its availability depends on the active editor. Will be fixed by making Grease Pencil an own object type (as planned).
* The button to change the active workspace object mode may get out of sync with the mode of the active object. Will either be resolved by moving mode out of object data, or we'll disable workspace modes again (there's a `#define USE_WORKSPACE_MODE` for that).
* Screen-layouts (`bScreen`) are IDs and thus stored in a main list-base. Had to add a wrapper `WorkSpaceLayout` so we can store them in a list-base within workspaces, too. On the long run we could completely replace `bScreen` by workspace structs.
* `WorkSpace` types use some special compiler trickery to allow marking structs and struct members as private. BKE_workspace API should be used for accessing those.
* Added scene operators `SCENE_OT_`. Was previously done through screen operators.
== BPY API Changes
* Removed `Screen.scene`, added `Window.scene`
* Removed `UserPreferencesView.use_global_scene`
* Added `Context.workspace`, `Window.workspace` and `BlendData.workspaces`
* Added `bpy.types.WorkSpace` containing `screens`, `object_mode` and `render_layer`
* Added Screen.layout_name for the layout name that'll be displayed in the UI (may differ from internal name)
== What's left?
* There are a few open design questions (T50521). We should find the needed answers and implement them.
* Allow adding and removing individual workspaces from workspace configuration (needs UI design).
* Get the override system ready and support overrides per workspace.
* Support custom UI setups as part of workspaces (hidden panels, hidden buttons, customizable toolbars, etc).
* Allow enabling add-ons per workspace.
* Support custom workspace keymaps.
* Remove special exception for workspaces in linking code (so they're always appended, never linked). Depends on a few things, so best to solve later.
* Get the topbar done.
* Workspaces need a proper icon, current one is just a placeholder :)
Reviewed By: campbellbarton, mont29
Tags: #user_interface, #bf_blender_2.8
Maniphest Tasks: T50521
Differential Revision: https://developer.blender.org/D2451
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This switches the internal color representation of the eye dropper from display space to linear. Any time a linear color is requested and the color is picked from a linear object, the result is now precise to the bit as the color gets patched through directly. Color space conversion now only happens when a color is picked from non-linear display space objects or when the color is requested to be returned in non-linear space.
In addition, this patch changes the DifferenceMatte node to interpret a tolerance of 0.0 to accept colors that are identical bit by bit, as apposed to simply refusing all colors.
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Part of patch D1670 by @LazyDodo
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Currently feather points are being ignored, it could be improved in the future.
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CLIP_OT_track_markers was missing a poll callback.
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after Prefetch
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Not as if it gives any huge benefit to end artists, but it's kinda silly
to have like 3 different task/thread scheduling systems. The new one is
what's recommended for use now i'd say.
On the other hand it has unmeasurable memory save benefit :)
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Opted to keep includes if they are used indirectly (even if removing is possible).
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View2D had some inconsistencies making it error prone in some cases.
- Inconstant checking for NULL x/y args.
Disallow NULL args for x/y destination pointers, instead add:
- UI_view2d_region_to_view_x/y
- UI_view2d_view_to_region_x/y
- '_no_clip' suffix wasn't always used for non-clipping conversion,
switch it around and use a '_clip' suffix for all funcs that clip.
- UI_view2d_text_cache_add now clips before adding cache.
- '_clip' funcs return a bool to quickly check if its in the view.
- add conversion for rectangles, since this is a common task:
- UI_view2d_view_to_region_rcti
- UI_view2d_region_to_view_rctf
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Missing color copy, noticed by @campbellbarton, thanks!
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Either was some residue from the past or somebody didn't implement this in
the right way.
Also fixed memory leak in ED_space_clip_color_sample() caused by missing
image buffer release.
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Weird nobody noticed this before, issue exists in 2.69 as well..
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Based on the patch from Sebastian Koenig, discussed with Jonathan Williamson
https://developer.blender.org/T38172
Also removed redundant modes from clip editor.
Reviewers: brecht, carter2422
Reviewed By: carter2422
CC: sebastian_k, carter2422
Differential Revision: https://developer.blender.org/D293
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That was nothing really wrong with the old short used for
direction, but that became kinda annoying because of compiler
idiocy which considered direction might have been zero.
Using explicit dual-state flag is more clear anyway.
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Silly mistake in final condition. Now it works fine.
Would be nice to have this for the final release, simple oneliner.
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- When changing clip in clip editor, remove all frames
from it's cache to free memory for new clip.
- When changing proxy render settings, free cache as well.
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Made it an operator instead of automatic prefetching.
Filling the whole memory with frames is not always
desired behavior.
Now prefetching is available via P-key, or from Clip
panel in toolbox or from Clip menu.
Also enabled prefetching for non-proxied movies.
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Implemented using GLSL API from OpenColorIO library and
some general functions were added to it's c-api:
- OCIO_setupGLSLDraw prepares OpenGL context for GPU-based
transformation for a giver processor.
This function compiles and links shader, sets up it's
argument. After this transformation would be applied
on an image displaying as a 2D texture.
So, glaDrawPixelsTex called after OCIO_setupGLSLDraw will
do a proper color space transform.
- OCIO_finishGLSLDraw restores OpenGL context after all
color-managed display is over.
- OCIO_freeOGLState frees allocated state structure used
for cacheing some GLSL-related stuff.
There're some utility functions in IMB_colormanagent which
are basically proxies to lower level OCIO functions but
which could be used from any place in blender.
Chacheing of movie clip frame on GPU is also removed now,
and either glaDrawPixelsTex or glaDrawPixelsAuto are used
for display now. This is so no code duplication happens
now and no large textures are lurking around in GPU memory.
Known issues:
- Texture buffer and GLSL are no longer checking for
video card capabilities, possibly could lead to some
artifacts on crappy drivers/cards.
- Only float buffers are displaying using GLSL, byte
buffers will still use fallback display method.
This is to be addressed later.
- If RGB curves are used as a part of display transform,
GLSL display will also be disabled. This is also thing
to be solved later.
Additional changes:
- glaDrawPixelsTexScaled will now use RGBA16F as an
internal format of storing textures when it's used
to draw float buffer. This is needed so LUT are
applied without precision loss.
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When using movie as a clip no need to prefetch in cases
no proxies are sued at this moment.
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Now prefetching happens from cursor up to scene end frame
and then from cursor down to scene start frame.
Also disabled prefetching for non-unidistorted proxies
because of issues with timecodes (seek horribly fails
in some cases). This seek need to be fixed since it's
actually happens for manual timeline scrubbing as well,
but that's another story..
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Don't use sequencer's Frames Prefetch option and rather fill the
whole cache with frames.
Since movie clip is not "classical" prefetcher (it doesn't do
anything while playing back) and main purpose is to speed up
reading for further tracking and so, such a change seems logical.
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This commit basically implements frames prefetching for
movie clip datablock.
Number of frames to be prefetched is controlled in User
Preferences, System tab, Prefetch Frames option.
Currently prefetching is destructive-less for movie cache,
meaning mo frames will be removed from the cache when while
prefetching. This is because it's half of simplier to
implement, but it also makes sense from tracking point of
view -- we could want to playback in both directions and
removing frames from behind time cursor is not always a
good idea.
Anyway, smarter prefetching strategy could be developed
later.
Some implementation notes:
- Added MEM_CacheLimiter_get_memory_in_use function to get
memory usage of specified memory limiter.
- Fixed prototype of MEM_CacheLimiter_get_maximum which
was simply wrong (used wrong data type for output).
- Added some utility functions to movie clip and movie
cache for direct cache interaction and obtaining cache
statistics.
- Prefetching is implemented using general jobs system.
which is invoking from clip draw function.
- Prefetcing will stop as soon other job or playback starts.
This is done from performance point of view. Jobs will
likely require lots of CPU power and better to provide
whole CPU to it.
Playback is a bit more complicated case. For jpeg sequence
playback prefetching while paying back is nice. But trying
to prefetch heavy exr images and doing color space
conversion slows down both playback and prefetching.
TODO:
- Think of better policy of dealing with already cached frames
(like when cached frames from other clips prevents frames
from current clip to be prefetched)
- Currently a bit funky redraw notification happens from
prefetch job. Perhaps own ND_ is better to have here.
- Hiding clip while prefetch is active in theory shall stop
prefetching job.
- Having multiple clips opened on file load will prefetch
frames for only one of them.
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Also use glaDrawPixelsAuto as a fallback method. Hopefully it'll
make using 2D textures for frames higher resolution than
GL_MAX_TEXTURE_SIZE.
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style edits and typo corrections.
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Trackpad zoom (swipe + CTRL) direction was inverted compared to MMB-drag
or scrollwheel usage. In the 3D viewport it was OK, in all others not.
Now the same physical gesture maps identical to zooming everywhere. Or to
recap (with blender factory settings)
Zooming in:
- MMB-drag, move mouse towards screen
- Scroll wheel, move finger towards screen
- Magic Mouse, move finger towards screen
- Trackpad 2-finger swipe: move fingers toward screen.
To make this extra confusing: this is only consistent if you set your system
to inperpret trackpad swipes as "inverted" (pan view left = swipe to right).
This is a typical default, although Apple wants you to call this "Unnatural" :)
Next commit will be testing on laptop if all pinch gestures zoom consistent.
And following to that, a sensible user preference to map trackpad use for
Blender yourself, to invert system defaults again. :)
Blame and thanks goes to Sebastian Koenig, for his perseverance on getting this
solved :)
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also add UNPACK macros's. handy for printing vectors for eg.
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- minf, maxf, mini, maxi --> min_ff, max_ff, min_ii, max_ii
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selected, but no clip in the view.
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Replace old color pipeline which was supporting linear/sRGB color spaces
only with OpenColorIO-based pipeline.
This introduces two configurable color spaces:
- Input color space for images and movie clips. This space is used to convert
images/movies from color space in which file is saved to Blender's linear
space (for float images, byte images are not internally converted, only input
space is stored for such images and used later).
This setting could be found in image/clip data block settings.
- Display color space which defines space in which particular display is working.
This settings could be found in scene's Color Management panel.
When render result is being displayed on the screen, apart from converting image
to display space, some additional conversions could happen.
This conversions are:
- View, which defines tone curve applying before display transformation.
These are different ways to view the image on the same display device.
For example it could be used to emulate film view on sRGB display.
- Exposure affects on image exposure before tone map is applied.
- Gamma is post-display gamma correction, could be used to match particular
display gamma.
- RGB curves are user-defined curves which are applying before display
transformation, could be used for different purposes.
All this settings by default are only applying on render result and does not
affect on other images. If some particular image needs to be affected by this
transformation, "View as Render" setting of image data block should be set to
truth. Movie clips are always affected by all display transformations.
This commit also introduces configurable color space in which sequencer is
working. This setting could be found in scene's Color Management panel and
it should be used if such stuff as grading needs to be done in color space
different from sRGB (i.e. when Film view on sRGB display is use, using VD16
space as sequencer's internal space would make grading working in space
which is close to the space using for display).
Some technical notes:
- Image buffer's float buffer is now always in linear space, even if it was
created from 16bit byte images.
- Space of byte buffer is stored in image buffer's rect_colorspace property.
- Profile of image buffer was removed since it's not longer meaningful.
- OpenGL and GLSL is supposed to always work in sRGB space. It is possible
to support other spaces, but it's quite large project which isn't so
much important.
- Legacy Color Management option disabled is emulated by using None display.
It could have some regressions, but there's no clear way to avoid them.
- If OpenColorIO is disabled on build time, it should make blender behaving
in the same way as previous release with color management enabled.
More details could be found at this page (more details would be added soon):
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.64/Color_Management
--
Thanks to Xavier Thomas, Lukas Toene for initial work on OpenColorIO
integration and to Brecht van Lommel for some further development and code/
usecase review!
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