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Apply clang format as proposed in T53211.
For details on usage and instructions for migrating branches
without conflicts, see:
https://wiki.blender.org/wiki/Tools/ClangFormat
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While \file doesn't need an argument, it can't have another doxy
command after it.
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Move \ingroup onto same line to be more compact and
make it clear the file is in the group.
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BF-admins agree to remove header information that isn't useful,
to reduce noise.
- BEGIN/END license blocks
Developers should add non license comments as separate comment blocks.
No need for separator text.
- Contributors
This is often invalid, outdated or misleading
especially when splitting files.
It's more useful to git-blame to find out who has developed the code.
See P901 for script to perform these edits.
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The existing Add and Multiply blending modes have limited usability,
because the appropriate operation for meaningfully combining values
depends on the channel. This adds a new mode that chooses the operation
automatically based on property settings:
- Axis+Angle channels are summed, effectively averaging the
axis, but adding up the angle. Default is forced to 0.
- Quaternion channels use quaternion multiplication:
result = prev * value ^ influence
- Scale-like multiplicative channels use multiplication:
result = prev * (value / default) ^ influence
- Other channels use addition:
result = prev + (value - default) * influence
Inclusion of default in the computation ensures that combining
keyframed default values of properties keeps the default state,
even if the default isn't 0 or 1.
Strips with this mode can be keyframed normally in Tweak mode,
except that for quaternion rotation keyframing always inserts
all 4 channels, and the channel value sliders on the left side
of Graph/Action editors won't insert keys without Auto Key.
Quaternion keys are also automatically normalized.
Differential Revision: https://developer.blender.org/D4190
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Implementing a new intelligent mixing mode that combines quaternions
via multiplication requires rewriting the NLA code to recombine array
properties from separate scalar channels during evaluation.
In addition, stable evaluation of NLA stack requires that any channel
that is touched by any of the actions in the stack should always be
set to a definite value by evaluation, even if no strip affects it
at this point of the timeline. The obvious choice for the fallback
is the default value of the property.
To make scanning all actions reasonably efficient, mapping paths to
channels should be done using hash tables.
Differential Revision: https://developer.blender.org/D4120
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NLA strips support using the keyframe values in a variety of ways:
adding, subtracting, multiplying, linearly mixing with the result
of strips located below in the stack. This is intended for layering
tweaks on top of a base animation.
However, when inserting keyframes into such strips, it simply inserts
the final value of the property, irrespective of these settings. This
in fact makes the feature nearly useless.
To fix this it is necessary to evaluate the NLA stack below the
edited strip and correctly compute the raw key that would produce
the intended final value, according to the mode and influence.
Differential Revision: https://developer.blender.org/D3927
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It was supposed to be a feature for substituting RNA paths on the
fly, but has never been implemented, apart from a couple of structure
definitions and passing around some always-NULL pointers. Now it gets
in the way of refactoring NLA evaluation to use GHash for efficiency.
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Without this keyframing on top of an NLA stack is quite weirdly broken.
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This way we allow animation system to make decisions based on which
context dependency graph is coming from, and whether it belongs to
an active edit window or not.
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had a typo too.
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without the underscores these clogged up the namespace for autocompleation which was annoying.
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http://markmail.org/message/fp7ozcywxum3ar7n
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F-Modifiers now work on 'all' types of NLA Strip. To get them working on Meta-strips, F-Modifiers on the Meta strip must be applied on top of those for child strips. For now, this is done by joining the lists of modifiers, and evaluating the joined list.
Currently, Transitions don't work that great with F-Modifiers yet (only the endpoints get evaluated with the F-Modifiers). Solving this is for another time...
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Previously, the quick-hack I coded for Meta-strips evaluation didn't really take into account the possibilities to use Meta-Strips as strips in their own right - i.e. reversed, muted, time-mapping-curves, influence-blending - were all unavailable.
This commit makes the aforementioned capabilities of other strips available for Meta-Strips too. The evaluation is now kind-of recursive (as with most of the other methods which take them into account) so that each 'level' of strips get evaluated correctly within their frame-of-reference.
TODO:
* F-Modifier support for Metas...
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While trying to fix the mapping conversions for repeat, I came across some limitations with the current (soon to be previous) mapping methods.
Now the mapping conversions should work nicely for all places that use them.
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In TweakMode, the keyframes of the Active Action are now shown (and can be edited) in NLA-mapped time, with appropriate corrections applied when editing. This works in the DopeSheet and Graph Editors :)
To do this, got rid of the old wrappers/API-methods, replacing them with new-style ones. A few methods previously (in this branch) used only for evaluation are now used for this purpose too. As the same code is used for editing + evaluation, this should now be much better to work with.
I've only done a few brief tests now, but I think I might've muddled the invert-flags on one or two cases which I'll need to check out tomorrow. So, beware that there may be some weird and critical bugs for the next few days here...
Also, added proper license headers to new NLA files.
TODO:
- testing + bugfixing due to this commit
- show range of keyframes in NLA Editor active-action line
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