Was reported for a file which does not have an active track set in
AnimData even though it was in strip twek mode (but this was accessed in
is_nlatrack_evaluatable()).
Root cause for this is not totally clear, but I assume the situation is
described as part T87681 (and is fixed in D11052).
This patch here just prevents the crash for files that are already in the
borked state.
Reviewers: sybren
Maniphest Tasks: T89805
Differential Revision: https://developer.blender.org/D12085
Add function `BKE_pose_apply_action_blend()`, which blends a given
Action into current pose. The Action is evaluated at a specified frame,
and the result is applied to the armature's pose.
A blend factor can be given to blend between the current pose and the
one in the Action. Quaternions are interpolated with SLERP; it is
assumed that their FCurves are consecutively stored in the Action.
This function will be used in the upcoming new Pose Library.
Extracts `nlasnapshot_blend_get_inverted_upper_snapshot()` from
`BKE_animsys_nla_remap_keyframe_values()`
This introduces a new struct member:
`NlaEvalChannelSnapshot->remap_domain` and marks which values of
`blended_snapshot` are processed for remapping/used-for-inverting.
Effectively, it marks which values have successfully been remapped and
can be further used for remapping.
`nlasnapshot_blend_get_inverted_upper_snapshot()`:
output snapshot `r_upper_snapshot` has each channel's `remap_domain`
written to which effectively marks the successfully remapped values.
The only reason a value is not in the remap domain is if inversion
failed or it wasn't marked to be remapped.
`..get_inverted_upper_snapshot()` has a variant `nlasnapshot_blend()`
from {D10220}, but this patch doesn't depend on it at all. A third
variant will later be added `..get_inverted_lower_snapshot()`.
Altogether, these three functions allow solving for any of
(lower_snapshot, upper_snapshot, blended_snapshot) given the other two.
The function `..get_inverted_lower_snapshot()` will also similarly
process the remap domain of the blended and lower snapshot.
added assertions within `nlasnapshot_blend()` and
`..get_inverted_upper_snapshot()` to future proof branches dealing with
blendmode and mixmodes. (suggested by sybren)
No user functional changes
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D10222
Rename:
- `BKE_animsys_store_rna_setting` → `BKE_animsys_rna_path_resolve`
- `BKE_animsys_read_rna_setting` → `BKE_animsys_read_from_rna_path`
- `BKE_animsys_write_rna_setting` → `BKE_animsys_write_to_rna_path`
The concept of "RNA setting" is unclear; the new names reflect better
what the functions actually do.
No functional changes.
Remove `animsys_evaluate_action()` and rename
`animsys_evaluate_action_ex()` to it. The only function of the former
was to call the latter, with the exact same parameters.
No functional changes.
Issue introduced by my commit: rB40b7929cc040
**User-level Problem**:
The issue resulted in a full-replace upper strip with only a Z location
channel full-replacing the XY location channels of the lower stack.
replaced to default. The expected behavior is that only the Z location
channel is affected.
**Technical-level Problem**:
Before the problematic commit, fcurves were blended as they were read.
So only existing animated channels would blend. My recent commit
changed the process to read all fcurve values into an isolated
upper_snapshot then blend with the lower stack. There is no data stored
to know whether the upper snapshot channel values were sampled from
fcurves or were default values. Only those sampled from fcurves should
be blended.
**Solution**:
Added a `blend_domain` bitmask member to NlaEvalChannelSnapshot.
The blending function only blends values within the `blend_domain`.
Sampled fcurve values are now marked as within the `blend_domain`.
We also now always copy the lower snapshot to the result snapshot which
only matters when they aren't the same. Currently, it's always the same
so the change is more for future unseen cases.
Reviewed By: sybren, #animation_rigging
Differential Revision: https://developer.blender.org/D10339
Introduced by my commit: rB09709a7e64ff
This bug effectively enabled the NLA when it should be disabled, when
all tracks muted or no strips exist. Specifically, the NLA Action Track
settings would be used (extrapolation, blendmode, influence).
The function `nlastrip_evaluate_transition()` has been slightly
modified to use `nlasnapshot_blend()` instead of it's own special
blending function `nlaeval_snapshot_mix_and_free()`.
No user functional changes
Reviewed By: sybren, #animation_rigging
Differential Revision: https://developer.blender.org/D10221
Refactor
//nlastrip_evaluate_actionclip()// and //nlaeval_blend_value()// into
//nlasnapshot_blend()//, //nlastrip_evaluate_actionclip()//,
//nlasnapshot_from_action()//.
**Motivations**:
* {T83615} Requires reading all pose bone fcurves before being able to
apply pre-blend transforms. The function //nlasnapshot_from_action()//
achieves this. This effectively removed the need to specially handle
Quaternion blend queuing so that code has been removed.
* {D8296} Adds support for keyframe remapping through an upper stack of
strips. Instead of introducing a variant of the form:
//nlastrip_evaluate_actionclip_inverted_get_lower()//,
//nlastrip_evaluate_actionclip()// will later be extended to take an
`evaluation_mode` as input to avoid duplicating the recursion functions
related to //nlastrip_evaluate()//.
* //nlasnapshot_blend()// will eventually have variants of
//nlasnapshot_blend_get_inverted_lower_snapshot()// and
//nlasnapshot_blend_get_inverted_upper_snapshot()// which are all
independent of NlaStrips and NlaTracks, further simplifying the
blending implementation. Ideally, //nlastrip_evaluate()// would get
renamed to //nlasnapshot_blend_strip()// but that'll be a later patch
to avoid unnecessary patches slowing the review of more important
patches.
No User-side Functional changes
Reviewed By: sybren, #animation_rigging
Differential Revision: https://developer.blender.org/D10220
For term consistency with usage.
The clarity is more for consistency with the nla domain() processing
function names and the core struct member name it stores the results
in, "valid". The name "domain", which implies a function can operate
on it, seems more natural than "valid", which implies something is
wrong if false.
No functional changes.
Reviewed by: sybren
Differential Revision: http://developer.blender.org/D9692
The field will already be properly written to in (anim_sys.c)
nla_eval_domain_action(). It's easier to understand the property's
usage after removing the redundancy.
No functional changes.
Reviewed by: ChrisLend, sybren
Differential Revision: http://developer.blender.org/D9689
No functional changes.
Future patches {D8867} {D8296} make use of it.
Reviewed by: sybren, ChrisLend
Differential Revision: http://developer.blender.org/D9691
No intended functional changes.
Refactors animsys_evaluate_nla() into 2 versions:
animsys_evaluate_nla_for_keyframing(), animsys_evaluate_nla_for_flush()
to make it clear what data is being calculated and why.
Dummy strip creation has been refactored to two separate functions,
animsys_create_tweak_strip() and animsys_create_action_track_strip().
Both are evaluated differently from other strips and eachother. There's
no need to interweave them. A future patch D8296, generally requires
both strips.
___
XXX anim_sys.c) nlatrack_find_tweaked() is a temporary work around.
If anyone has any insight into this problem, help is appreciated.
Reviewed by: sybren
Differential Revision: http://developer.blender.org/D9696
**Renames parms**:
| **old name** | **new name**
| old_value | lower_value
| target_value | blended_value
| value | strip_value
| inf | influence
**Reason**: {D8296} allows full nla stack evaluation with proper
keyframing support. These names should make it more intuitive how all
the data gets processed and inverted. Note, that I do use the term
"strip_value" instead of something like "fcurve_value" of the tweak
strip. Technically, "strip_value" is closer to what is solved for.
For example, if a noise fmodifier was active for the fcurve, then the
remapping would appear to be wrong. In the future, further solving can
be done afterward, outside of the nla system, to remove the effects of
fmodifiers.
**Renames functions**:
| nla_invert_blend_value | nla_blend_get_inverted_strip_value
| nla_invert_combine_value | nla_combine_get_inverted_strip_value
**Reason**: D8296 adds get_inverted_lower_value() variants,
so "invert" alone is too vague.
**Renames NlaKeyframingContext member**:
| nla_channels | lower_eval_data
**Reason**: D8296 evaluates the upper stack. This name makes it more
obvious what data is stored there.
No functional changes (relative to the dependency below)
Split from {D9247}
Depends on {D9694} since the code was so close to eachother.
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D9695
It's an explicit check to prevent division by zero if caller hasn't
done the check. Future patch {D8867} will not use the nla remap
function and thus not do the check. This patch also replaces some
float (==) equality checks with IS_EQF().
Split from {D9247}
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D9694
And removes redundant index local variable. Future patches {D8296} and
{D8867} make use of this function.
No functional changes.
Split from {D9247}
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D9693
Corrects incorrect usage of contraction for 'it is', when possessive 'its' was required.
Differential Revision: https://developer.blender.org/D9250
Reviewed by Campbell Barton
Copy correct time to temporary strips used for evaluation of NLA
Transition strips.
When a transition is placed next to a meta strip, the transition would
use the wrong strip time, using the time of the meta strip instead of
its own.
Reviewed by: sybren
Differential Revision: https://developer.blender.org/D8287
Allow adding keys outside of the NLA strip, when Sync Length is
activated. Before this, an animator would have to exit tweak mode,
adjust the strip length, then enter tweak mode again.
Now the animator can freely insert and modify keys outside of the strip
bounds. They will never have to touch the strip bounds directly.
Reviewed By: sybren
Differential Revision: https://developer.blender.org/D7533
Custom driver functions need access to the dependency graph that is
triggering the evaluation of the driver. This patch passes the
dependency graph pointer through all the animation-related calls.
Instead of passing the evaluation time to functions, the code now passes
an `AnimationEvalContext` pointer:
```
typedef struct AnimationEvalContext {
struct Depsgraph *const depsgraph;
const float eval_time;
} AnimationEvalContext;
```
These structs are read-only, meaning that the code cannot change the
evaluation time. Note that the `depsgraph` pointer itself is const, but
it points to a non-const depsgraph.
FCurves and Drivers can be evaluated at a different time than the
current scene time, for example when evaluating NLA strips. This means
that, even though the current time is stored in the dependency graph, we
need an explicit evaluation time.
There are two functions that allow creation of `AnimationEvalContext`
objects:
- `BKE_animsys_eval_context_construct(Depsgraph *depsgraph, float
eval_time)`, which creates a new context object from scratch, and
- `BKE_animsys_eval_context_construct_at(AnimationEvalContext
*anim_eval_context, float eval_time)`, which can be used to create a
`AnimationEvalContext` with the same depsgraph, but at a different
time. This makes it possible to later add fields without changing any
of the code that just want to change the eval time.
This also provides a fix for T75553, although it does require a change
to the custom driver function. The driver should call
`custom_function(depsgraph)`, and the function should use that depsgraph
instead of information from `bpy.context`.
Reviewed By: brecht, sergey
Differential Revision: https://developer.blender.org/D8047
This addresses warnings from Clang-Tidy's `readability-else-after-return`
rule in the `source/blender/blenkernel` module. Not all warnings are
addressed in this commit.
No functional changes.
This data block will be the container for simulation node trees.
It will be used for the new particle node system (T73324).
The new data block has the type `ID_SIM`.
It is not visible to users and other developers by default yet.
To enable it, activate the cmake option `WITH_NEW_SIMULATION_TYPE`.
New simulation data blocks can be created by running `bpy.data.simulations.new("name")`.
Reviewers: brecht
Differential Revision: https://developer.blender.org/D7225
Introduced in 2011 in rB6a392e8cb505, it was disabled again soon after
in rBb062056c05a3 and traces to it partly removed in rB21744217cea9.
Now remove completely.
quote @sergey:
We shouldn't be having partially working unused code.
If we ever need some sort of update cache it would need to have clear
design first, and the code could be resurrected from history if needed.
Differential Revision: https://developer.blender.org/D7432
Note this only changes cases where the variable was declared inside
the for loop. To handle it outside as well is a different challenge.
Differential Revision: https://developer.blender.org/D7320
The `BKE_animsys.h` and `anim_sys.c` files already had a an "AnimData
API" section. The code in that section has now been split off, and
placed into `BKE_anim_data.h` and `anim_data.c`.
All files that used to include `BKE_animsys.h` have been adjusted to
only include the animation headers they need (sometimes none).
No functional changes.
Follow up of b2ee1770d4 and 10c2254d41, part of T74432.
Now the area and region naming conventions should be less confusing.
Mostly a careful batch rename but had to do few smaller fixes.
Also ran clang-format on affected files.
