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136 Commits

Author SHA1 Message Date
Campbell Barton
d7f33668d6 Math Lib: Add mat3_from_axis_conversion_single 
Single axis version of mat3_from_axis_conversion,
when the second axis isn't important (orienting an arrow for eg).
 2017-06-09 19:31:27 +10:00
Campbell Barton
9bb8e46460 Docs: move note (was mixed up) 2017-04-20 17:11:12 +10:00
Campbell Barton
e1e49fd1a8 Math Lib: rotate matrix cleanup 
- 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'.
 2016-11-25 16:39:34 +11:00
Campbell Barton
7a3ea87bbf Cleanup: use normalize_v#_length 2016-07-08 10:14:49 +10:00
Campbell Barton
60505728d9 Correct error in own matrix normalize commit 2015-11-12 18:54:26 +11:00
Campbell Barton
fbca69c69a BLI_math: add mat3_normalized_to_* functions 
Many uses of matrices for rotation keep them normalized,
so no need to normalize each time.
 2015-10-24 07:02:51 +11:00
Campbell Barton
3a98426ed6 Cleanup: remove redundant math calls 2015-10-24 06:03:48 +11:00
Campbell Barton
9d8a01dba1 BLI_math: add invert_qt_normalized 
When the quat is known to be unit length, so we can avoid scaling
(just conjugate_qt which asserts on non unit quats).
 2015-10-24 03:51:00 +11:00
Campbell Barton
80470b639c BLI_math: axis_angle_to_quat_single 
Useful to avoid defining a vector for an axis-aligned rotation.
Matches axis_angle_to_mat3_single behavior.
 2015-10-23 03:09:28 +11:00
Campbell Barton
f1422c40af Use squared length where possible 2015-09-18 16:40:55 +10:00
Brecht Van Lommel
b6caefdaa9 Fix T43711: dual quaternion deform bug with shearing in deform matrix. 
This also increases the tolerances in is_orthogonal / is_orthonormal functions,
which were much too low for practical purposes.
 2015-05-01 19:21:41 +02:00
Joshua Leung
441f68e2b0 Partial fix for T44219 
Prevent crashes from out of bounds array access if an invalid rotation mode
is passed to the euler rotation blenlib calculations.
 2015-04-08 14:34:07 +12:00
Campbell Barton
89a3e4deff Cleanup: redundant normalize in expmap_to_quat 2015-04-04 14:45:54 +11:00
Sybren A. Stüvel
9fa628f35b mathutils: added exponential map to Quaternion 
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
 2015-02-01 13:06:00 +01:00
Bastien Montagne
391096252b Fix T42638: Roll angle inconsistent flip in edit mode. 
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!
 2014-11-20 15:02:48 +01:00
Campbell Barton
3a40aed3d5 Cleanup: use float versions of functions when in/output are floats 2014-09-24 14:55:02 +10:00
Bastien Montagne
74758576fc Cleanup: general cleanup in BLI_math code (mostly, use 'const' where possible, true/false for booleans, format for float litterals). 2014-07-30 12:19:41 +02:00
Campbell Barton
8489b94e07 Math Lib: rename mul_serie_m3 to mul_m3_series & reorder args 
Importantly, reversed mul_serie_m3 argument order (so it matches the m4 function)
 2014-07-21 18:57:35 +10:00
Campbell Barton
7c7b7302d3 Math Lib: use variable length args for mul_serie_m3,m4 (instead of trailing NULL's) 2014-07-20 14:01:42 +10:00
Campbell Barton
94d4b31323 Math Lib: mat3_to_eulo2 & mat3_to_eul2 mixed float/double differently 
replace sqrt with hypotf to avoid precision loss instead
 2014-06-14 17:10:46 +10:00
Campbell Barton
48881ad1e0 Code cleanup: doxy comments 2014-05-14 15:00:47 +10:00
Campbell Barton
55d75f5020 Code cleanup: correct abs use 
also minor cleanup to rotation code
 2014-04-21 02:02:21 +10:00
Campbell Barton
f77207b1c3 Math Lib: faster version of rotation_between_vecs_to_mat3 
Use axis/angle calculation but avoid calls to sin/cos
 2014-04-20 20:56:40 +10:00
Campbell Barton
d6a53bb38f Minor change to recent commit (avoid transpose) 2014-04-19 19:48:07 +10:00
Campbell Barton
fabc46b41f Math Lib: add rotation_between_vecs_to_mat3 
- behaves like rotation_between_vecs_to_quat
- avoids calling sin,cos calls (approx 1.6x faster).
 2014-04-19 15:36:47 +10:00
Campbell Barton
fc9c790563 Math Lib: minor optimization for axis_angle_normalized_to_mat3 2014-04-19 14:10:22 +10:00
Campbell Barton
0055162b75 Tweak slerp assert to be less picky 2014-03-31 14:55:12 +11:00
Campbell Barton
55f83e36cc Py API: Vector.slerp(). also added interp_v3_v3v3_slerp(_safe) functions 2014-03-31 13:28:37 +11:00
Campbell Barton
7199e2288f Code cleanup: use sqrtf when input and output are float 2014-03-28 14:53:37 +11:00
Campbell Barton
c6252d6e60 Math Lib: add angle_qt functions 2014-03-20 15:15:29 +11:00
Bastien Montagne
0e9084d5ec Fix T39210: Grid Fill is generating mesh that's inconsistent with selected edge loops 
Issue was in BLI's rotation_between_vecs_to_quat(), which did not handled correctly cases where both vectors are colinear.

Patch by Campbell Barton and me.

Issue originaly tracked down by Yan Shi, many thanks!
 2014-03-16 16:31:19 +01:00
Campbell Barton
b5d6f14290 Fix T38858: Crazy spaces was unpredictable with co-linear edges 2014-02-27 12:28:40 +11:00
Campbell Barton
5fce3457b7 Math lib: add axis_angle_normalized_to_quat, use when length is known 2014-02-02 02:24:47 +11:00
Sergej Reich
a025ff407e Math: Code cleanup 
Remove stray #undef directives.
 2014-01-17 20:44:34 +01:00
Campbell Barton
07ceb99213 Code Cleanup: use strict flags for math lib, add inline declarations 2013-12-06 03:57:17 +11:00
Campbell Barton
6193963daa style cleanup 2013-10-22 03:03:56 +00:00
Brecht Van Lommel
6d9ccbc28d Further tweak for dual quaternion armature deform problem, tweak the epsilon 
value to solve some more cases.
 2013-10-12 12:54:09 +00:00
Brecht Van Lommel
744f691af4 Fix dual quaternion armature deform giving erratic results in some cases. Bug 
was encountered in a Kiribati rig file.

The problem was actually in the matrix to quaternion conversion function. One
problem is that it was using the wrong matrix indices in case of an ill defined
matrix trace. Besides that FLT_EPSILON was too small to detect cases where
float precision becomes a problem.
 2013-10-12 00:08:34 +00:00
Campbell Barton
ab8d88ac18 add angle_to_mat2 utility function. 2013-09-10 20:45:47 +00:00
Campbell Barton
2e2ea1ae21 set function args in BLI_math_rotation as const where possible. 2013-08-23 09:46:11 +00:00
Campbell Barton
7db1d6556d code cleanup: add break statements in switch ()'s, (even at the last case). 2013-07-21 08:16:37 +00:00
Campbell Barton
a2492e0603 style cleanup: braces/indentation 2013-07-19 16:44:17 +00:00
Campbell Barton
adba695209 remove vec_rot_to_mat3(), replace with axis_angle_normalized_to_mat3() 2013-06-22 23:58:52 +00:00
Campbell Barton
44b3735078 fix error in own recent commit, also other minor changes. 2013-05-27 18:51:31 +00:00
Campbell Barton
ec8d277c64 BLI_math rename functions: 
- mult_m4_m4m4 -> mul_m4_m4m4
- mult_m3_m3m4 -> mul_m3_m3m4

these temporary names were used to avoid problems when argument order was switched.
 2013-05-26 18:36:25 +00:00
Campbell Barton
59ca83c3a9 rename axis_angle_to_mat3_no_norm() --> axis_angle_normalized_to_mat3(). 
this matches closer to convention from existing functions - angle_v3v3() angle_normalized_v3v3().

also added assert to ensure argument given to axis_angle_normalized_to_mat3() is in fact normalized.
 2013-04-15 15:16:11 +00:00
Antony Riakiotakis
f6604f7612 New implementation for twist brushes. 
It has much better rotation and avoids the compression effect that old
twist brushes have. Also twisting is now non periodic, meaning you can
twist beyond 180 degrees. The amount of twist is also calculated
relative to the angle formed after first translating the mouse away from
the brush center.
 2013-04-15 14:55:42 +00:00
Campbell Barton
2804caff4c code cleanup: use bools, (float)sin/(float)cos -> sinf/cosf, more meaningful var names. 2013-04-04 04:22:38 +00:00
Campbell Barton
c68d5325d0 fix for [#34283] wasn't working in my tests (attached to original report), 
made bone roll get compatible angle values with the original roll.
 2013-02-19 04:37:28 +00:00
Campbell Barton
2005f7c6c0 style cleanup: also some typos 2013-02-11 00:49:00 +00:00