2d589e8549
Math Lib: avoid char > int conversion w/ line plot
2016-09-02 02:54:16 +10:00
b01a56ee5c
Transform Snap: Optimize edge-snap using BVH tree
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changes in BLI_kdopbvh:
- `BLI_bvhtree_find_nearest_to_ray` now takes is_ray_normalized and scale argument.
- `BLI_bvhtree_find_nearest_to_ray_angle` has been added (use for perspective view).
changes in BLI_bvhutils:
- `bvhtree_from_editmesh_edges_ex` was added.
changes in math_geom:
- `dist_squared_ray_to_seg_v3` was added.
other changes:
- `do_ray_start_correction` is no longer necessary to snap to verts.
- the way in which the test of depth was done before is being simulated in callbacks.
2016-06-30 17:52:03 +10:00
14f056144e
Bendy Bones Instability Fix - Second Attempt
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So the error seems to be in cubic_tangent_factor_circle_v3(),
which was introduced with D2001.
I've tweaked the most obvious culprit here - the epsilon factor.
It used to be 10^-7, but I've reduced it down to 10^-5 now,
and it's looking a lot more stable now :)
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BTW, about the derivation of the magic 0.390464 factor I briefly subbed back
as a workaround for this bug, see:
http://www.whizkidtech.redprince.net/bezier/circle/
2016-06-28 02:52:20 +12:00
c7a6ff0981
Docs: arg names
2016-06-27 13:21:14 +10:00
a17cba339c
BLI_math: Add function to calculate circular cubic curve tangents
2016-05-23 21:35:54 +10:00
8ed746683a
Remove redundant abs ray/line point functions
2016-04-14 13:04:35 +10:00
416064cd5b
Math Lib: ray_point_factor_v3 functions
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Gives a bit better precision than creating a line in some cases,
use for ED_view3d_win_to_3d.
2016-04-14 12:00:16 +10:00
50f9681e15
Docs: comment on line-sphere intersection
2016-04-10 22:46:12 +10:00
da9f0a507c
Minor improvement to last commit
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Sign is known in this case, no need to check for either direction.
2016-03-12 01:12:51 +11:00
8accc19d5d
Math Lib: less complex convex quad check
2016-03-11 23:41:50 +11:00
4e500101a7
Cleanup: quiet -Wcomma, cast to void where needed
2016-03-05 09:16:12 +11:00
86725667d4
Cleanup: naming for NearestRayToAABB_Precalc
2016-02-11 18:21:10 +11:00
b336124a13
Correct commented printfs
2016-01-26 09:08:40 +11:00
bfabb9d3c5
Math Lib: Add dist_squared_ray_to_aabb_v3 utility
2016-01-25 19:01:42 +11:00
90293a8da3
Math Lib: optimize segment-plane clipping
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Calculate the clipped min/max factor along the segment,
only applying to the coordinates at the end (will give better precision too).
Also make split input/output args.
2016-01-23 13:48:31 +11:00
18ffeb689d
error in last commit
2016-01-20 17:09:18 +11:00
e25b113694
Cleanup: naming convention
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Follow isect_ray_tri_watertight_v3 naming.
2016-01-20 17:03:10 +11:00
e830334357
Math Lib: use x-span for fill_poly_v2i_n callback
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Instead of running the callback per-pixel,
pass the x-span to the callback.
2016-01-08 23:35:34 +11:00
36f916f200
Math Lib: clamp closest_to_line_segment_v# when segment has no length
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For a line this makes sense but segments should clamp,
avoids assert in edge-rip.
2015-12-23 22:08:15 +11:00
fa3fe2ee10
Cleanup: math lib naming
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Distinguish between line / line_segment
2015-12-15 18:16:41 +11:00
a7c7ae5bf7
Cleanup: math lib naming
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Rename not-very-descriptive (p1, d) -> (ray_origin, ray_direction)
2015-12-15 18:15:10 +11:00
87791c611d
Cleanup: consistent naming for closest_to_line api
2015-12-15 17:49:31 +11:00
becc85c5d4
Math Lib: 2d ray-segment intersection function
2015-12-11 11:27:00 +11:00
8c453b5995
Remove redundant zero area face check
2015-12-03 22:45:33 +11:00
a4e151704f
Fix isect_point_tri_v3 w/ degenerate faces
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Ensure point_in_slice returns false when zero area faces are passed.
2015-12-03 22:37:46 +11:00
a7ac59414b
Cleanup: rename line to segments, avoids confusion
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Differentiate between lines and segments.
2015-11-13 07:48:05 +11:00
0d54aa9c02
Fix T46521: Python: bvh.ray_cast doesn't find a plane facing in the other direction under certain circumstances
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The issue was caused by wrong sign check. It originally came from more optimized
Cycles code where because of other reasons it wasn't visible yet. But in fact it
should be solved there as well.
2015-10-22 20:34:51 +05:00
99142ec7e0
BLI_math: isect_ray_plane_v3 now takes 4d plane
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Was taking a triangle and doing ray-tri intersect.
2015-10-16 03:06:12 +11:00
b333a7570f
Cleanup: spelling
2015-10-07 15:02:06 +11:00
9a62164d94
Cleanup: indentation
2015-09-22 15:02:11 +10:00
b8e0b2db56
Math Lib: isect_plane_*_v3 avoid negation
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Unmeasurable speedup for plane intersection.
2015-09-05 17:44:02 +10:00
ba188cf98d
Math Lib: simplify isect_plane_plane_v3
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Unlike the 3 plane method, the 2 planes squared cross-product _is_ the determinant.
2015-09-05 17:10:07 +10:00
39752eb912
Fix for isect_tri_tri_epsilon_v3 w/ small faces
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tris with ~1e-05 edge lengths would fail
2015-09-04 22:29:12 +10:00
1d71ad2eaa
Math Lib: Use plane intersect from graphics-gems
2015-09-04 22:13:20 +10:00
d0e7ba3fd1
Math Lib: avoid sqrt w/ triangle intersection
2015-09-04 22:06:36 +10:00
2ea96df159
Correct own error in line_point_factor
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Passing zero epsilon allowed divide by zero.
2015-09-04 22:06:36 +10:00
54ad576666
Small tri intersect fails when not normalized
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Logic was ok, but would run into precision issues.
2015-09-04 01:59:44 +10:00
a603a3470c
Revert fix for T45849 (part 2, tsk!)
2015-08-31 22:47:14 +10:00
06b14aa5f9
error in comments
2015-08-31 22:26:05 +10:00
6a53e658d3
Alternate fix for T45849: tri-tri intersect error
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Project both triangles onto the same plane to simplify calculations.
2015-08-31 22:15:27 +10:00
e503e37333
Revert fix for T45849, alternate fix coming up
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epsilon check here didn't account for scale, causing T45919
2015-08-31 22:12:19 +10:00
96fa58e22c
Math Lib: Add closest_to_plane helper functions
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- closest_to_plane3 (for float3 planes)
- closest_to_plane*_normalized_v3 (for unit length planes)
Use when the plane is known to be unit length
2015-08-31 20:10:36 +10:00
50917edad5
Fix T45853: Edge-slide UV-correct jitter
2015-08-25 22:57:03 +10:00
e7775833a7
Math Lib: Use same logic for 2d/3d functions
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dist_squared_to_line_v2, dist_to_line_v2
2015-08-23 19:10:37 +10:00
0cb23fafe7
Math Lib: minor optimization interp_weights_poly
2015-08-23 17:07:35 +10:00
58c9a0b11a
Cleanup: spelling
2015-08-22 21:17:32 +10:00
c1c07b68b8
Use epsilon for line-intersect collinear test
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Also remove 2x vector normalize since other parts of the code already check this.
Fixes T45849
2015-08-22 21:12:46 +10:00
71919efd78
Math Lib: watertight intersection function
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From Cycles with some very minor differences.
2015-08-21 17:45:04 +10:00
a6457f283e
Cleanup: comment out isect_ray_tri_threshold_v3
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Also define epsilon var for ray-cast functions.
2015-08-20 12:50:39 +10:00
cd8581af8e
Fix T45706: Axis aligned tri-tri intersection
2015-08-19 12:20:39 +10:00
Campbell Barton