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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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Ref T63327
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Copy the new value when the compatible quaternion isn't usable.
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When there was no rotation the axis was zerod,
while not exactly a bug, it means changing the angle does nothing
and all axis-angle values are initialized with Y=1,
use this convention when resetting the axis too.
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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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Needed for clan-format not to wrap onto one line.
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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This is often invalid, outdated or misleading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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Prevents clang-format wrapping text before comments.
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"angular mult factor" is a completely unintelligible description
for a function that raises a unit quaternion to the scalar power.
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Helps separate variable names from descriptive text.
Was already used in some parts of the code,
double space and dashes were used elsewhere.
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The main use one can imagine for this is adding tweak controls to
parts of a model that are already deformed by multiple other major
bones. It is natural to expect such locations to deform as if the
tweaks aren't there by default; however currently there is no easy
way to make a bone follow multiple other bones.
This adds a new constraint that implements the math behind the Armature
modifier, with support for explicit weights, bone envelopes, and dual
quaternion blending. It can also access bones from multiple armatures
at the same time (mainly because it's easier to code it that way.)
This also fixes dquat_to_mat4, which wasn't used anywhere before.
Differential Revision: https://developer.blender.org/D3664
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There was no simple way to get the shortest quaternion angle.
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Single axis version of mat3_from_axis_conversion,
when the second axis isn't important (orienting an arrow for eg).
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- Remove 'rotate_m2', unlike 'rotate_m4' it created a new matrix
duplicating 'angle_to_mat2' - now used instead.
(better avoid matching functions having different behavior).
- Add 'axis_angle_to_mat4_single',
convenience wrapper for 'axis_angle_to_mat3_single'.
- Replace 'unit_m4(), rotate_m4()' with a single call to 'axis_angle_to_mat4_single'.
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Many uses of matrices for rotation keep them normalized,
so no need to normalize each time.
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When the quat is known to be unit length, so we can avoid scaling
(just conjugate_qt which asserts on non unit quats).
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Useful to avoid defining a vector for an axis-aligned rotation.
Matches axis_angle_to_mat3_single behavior.
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This also increases the tolerances in is_orthogonal / is_orthonormal functions,
which were much too low for practical purposes.
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Prevent crashes from out of bounds array access if an invalid rotation mode
is passed to the euler rotation blenlib calculations.
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Added conversion to and from exponential map representation. This
representation is useful for interpolation of > 2 quaternions, or in
PD controllers.
Implementation in C functions quat_to_expmap,
quat_normalized_to_expmap, and expmap_to_quat with Python API, unit
tests and documentation.
Added Quaternion.to_exponential_map() and Quaternion(3-vector) to
Python API.
Reviewers: campbellbarton
Projects: #bf_blender
Differential Revision: https://developer.blender.org/D1049
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Basically, `angle_compat_rad()` was completely broken -
example of result it could produce:
| new angle | compat angle | result
| -0.000000 | 3.141593 | -> 3.141593
... Where 0.0 (or 2 * PI) would be expected!
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possible, true/false for booleans, format for float litterals).
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Importantly, reversed mul_serie_m3 argument order (so it matches the m4 function)
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NULL's)
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replace sqrt with hypotf to avoid precision loss instead
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also minor cleanup to rotation code
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Use axis/angle calculation but avoid calls to sin/cos
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- behaves like rotation_between_vecs_to_quat
- avoids calling sin,cos calls (approx 1.6x faster).
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