Commit Graph

8 Commits

Author SHA1 Message Date
Peter Eastman 31c2a24893 Analytic collision normals 2023-01-18 18:24:57 -08:00
Rémi Verschelde 1e32a286f3
Merge pull request from CherrySodaPop/get-impulse-3d
Implement collision impulse in Godot Physics 3D
2023-01-08 22:40:06 +01:00
Lily Garcia 8ee6264cc9 Implement collision impulse in Godot Physics 3D 2023-01-07 22:34:28 -05:00
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00
Rémi Verschelde fe52458154
Update copyright statements to 2022
Happy new year to the wonderful Godot community!
2022-01-03 21:27:34 +01:00
PouleyKetchoupp 30a608b7b9 Fix rigid body ray cast CCD in 2D and 3D Godot Physics
For 2D:
Raycast CCD now works the same as in 3D, it changes the body's velocity
to place it at the impact position instead of generating a contact point
that causes a wrong push back.

For both 2D and 3D:
The raycast CCD process reads and modifies body velocities, so it needs
to be moved to pre_solve() instead of setup() to be processed linearly
on the main thread, otherwise multithreading can cause some CCD results
to be randomly lost when multiple collisions occur.
2021-12-10 16:25:14 -07:00
PouleyKetchoupp 5cbc7149a1 Improve RigidDynamicBody contacts in 2D and 3D
Changed the algorithm for solving contacts to keep previous contacts as
long as they are under the max separation threshold to keep contact
impulses more consistent and contacts more stable.

Also made 2D consistent with 3D and changed some default parameters:
-Contact bias is now 0.8 instead of 0.3 to avoid springy contacts
-Solver iterations are 16 instead of 8 by default for better stability

Performance considerations:
Tested with stress tests that include lots of contacts from overlapping
bodies.
3D: There's no measurable difference in performance.
2D: Performance is a bit lower (close to 10% slower in extreme cases)
The benefit for 2D physics to be much more stable outweighs the slight
decrease in performance, and this could be alleviated by changing the
algorithm to use jacobians for contact solving to help with cache
efficiency and memory allocations.
2021-12-03 10:40:15 -07:00
PouleyKetchoupp cc39dca9f7 Rename Godot Physics classes from *SW to Godot*
Also moved MT physics server wrappers to the main servers folder, since
they don't have to be implementation specific.
2021-10-18 17:01:10 -07:00