# \#Physics **URL:** https://forums.unrealengine.com/tag/physics/118.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Apply radial damage node doesn't damage actors](https://forums.unrealengine.com/t/apply-radial-damage-node-doesnt-damage-actors/386721)
**Author:** [@Erumaru](https://forums.unrealengine.com/u/Erumaru)\ **Replies:** 10\ **Last updated:** [November 6, 2026, 12:30am UTC](https://forums.unrealengine.com/t/apply-radial-damage-node-doesnt-damage-actors/386721 "2026-11-06T00:30:59Z")
My actors to which I am trying to apply damage have a capsule component (They are inherited from the Character unreal standart class). When capsule radius or height is big and actor’s location vector doesn’t overlap with… --- ## [Car Wheels SINK into terrain and wont move forward](https://forums.unrealengine.com/t/car-wheels-sink-into-terrain-and-wont-move-forward/411523)
**Author:** [@True\_Origins\_Int](https://forums.unrealengine.com/u/True_Origins_Int)\ **Replies:** 16\ **Last updated:** [November 4, 2026, 6:07pm UTC](https://forums.unrealengine.com/t/car-wheels-sink-into-terrain-and-wont-move-forward/411523 "2026-11-04T18:07:22Z")
I have been trying to run a rigged car from Blender using the very basic WheeledVehicle blueprint component, the rig is perfect, and simulates pefectly in the Physics asset editor just like the default UE4 sedan vehicle.… --- ## [Batch Toolset Nine in One](https://forums.unrealengine.com/t/batch-toolset-nine-in-one/2840258)
**Author:** [@UNRealBrush](https://forums.unrealengine.com/u/UNRealBrush)\ **Replies:** 2\ **Last updated:** [October 30, 2026, 6:09am UTC](https://forums.unrealengine.com/t/batch-toolset-nine-in-one/2840258 "2026-10-30T06:09:19Z")
Batch Toolset brings nine practical workflows into one dockable Unreal Editor panel. Select and modify Level Actors and Content Browser assets without repeating the same setup one object at a time.Check here https://w… --- ## [Concave collision for physics simulation](https://forums.unrealengine.com/t/concave-collision-for-physics-simulation/1570897)
**Author:** [@jklklmn](https://forums.unrealengine.com/u/jklklmn)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:42pm UTC](https://forums.unrealengine.com/t/concave-collision-for-physics-simulation/1570897 "2026-10-26T23:42:02Z")
Hello! Does anyone have any ideas on how to make a collision mesh for a figure like this? When I import the collision for it, it turns out like this: For my task I really need this concavity in physics simulati… --- ## [\[FOR HIRE\] Sunny \[Remote/Contract/Onsite\]](https://forums.unrealengine.com/t/for-hire-sunny-remote-contract-onsite/2077367)
**Author:** [@Sab\_Rango](https://forums.unrealengine.com/u/Sab_Rango)\ **Replies:** 13\ **Last updated:** [October 23, 2026, 11:22pm UTC](https://forums.unrealengine.com/t/for-hire-sunny-remote-contract-onsite/2077367 "2026-10-23T23:22:18Z")
:video\_game:Sunny \*\* Gameplay Engineering & Technical Animation\*\* Location: Warsaw, Poland Hello My name is Sunnatulla Esanov . With over 7+ years of experience, I specialize in building immersive VR/PC experiences, a… --- ## [How to configure the Chaos Destruction Demo for the 4.26-Chaos Preview](https://forums.unrealengine.com/t/how-to-configure-the-chaos-destruction-demo-for-the-4-26-chaos-preview/155165)
**Author:** [@Amanda.Schade](https://forums.unrealengine.com/u/Amanda.Schade)\ **Replies:** 25\ **Last updated:** [October 22, 2026, 2:51pm UTC](https://forums.unrealengine.com/t/how-to-configure-the-chaos-destruction-demo-for-the-4-26-chaos-preview/155165 "2026-10-22T14:51:53Z")
So you’ve downloaded the Unreal Engine 4.26-Chaos Preview build and the Chaos Destruction Demo, but how do you get started? Currently, the 4.26 version of the Chaos Destruction Demo is configured to be built alongside a… --- ## [UE5 is there a simple way to override gravity in a volume](https://forums.unrealengine.com/t/ue5-is-there-a-simple-way-to-override-gravity-in-a-volume/790265)
**Author:** [@anon78908730](https://forums.unrealengine.com/u/anon78908730)\ **Replies:** 4\ **Last updated:** [October 22, 2026, 7:48am UTC](https://forums.unrealengine.com/t/ue5-is-there-a-simple-way-to-override-gravity-in-a-volume/790265 "2026-10-22T07:48:45Z")
I’m simply wondering if there is a way to create a volume where this gravity override takes effect, here are two examples I had in mind. In a Cube, the gravity would change direction, this could point in any direction. … --- ## [How do I add 3D surface-based Gravity, like in Run 3](https://forums.unrealengine.com/t/how-do-i-add-3d-surface-based-gravity-like-in-run-3/2126358)
**Author:** [@Jazz8942](https://forums.unrealengine.com/u/Jazz8942)\ **Replies:** 4\ **Last updated:** [October 21, 2026, 9:10pm UTC](https://forums.unrealengine.com/t/how-do-i-add-3d-surface-based-gravity-like-in-run-3/2126358 "2026-10-21T21:10:52Z")
I’m sure a lot of you played Run 3 on coolmath games as a kid, it’s basically a moving platformer where you play inside a polygonal tunnel, and if you touch a different face of the tunnel, your gravity becomes that direc… --- ## [Visualize predict projectile path in real time?](https://forums.unrealengine.com/t/visualize-predict-projectile-path-in-real-time/457707)
**Author:** [@fael097](https://forums.unrealengine.com/u/fael097)\ **Replies:** 4\ **Last updated:** [October 21, 2026, 9:13am UTC](https://forums.unrealengine.com/t/visualize-predict-projectile-path-in-real-time/457707 "2026-10-21T09:13:52Z")
hi, I’m trying to launch a rocket and have its ballistic trajectory shown and update in real time as the rocket accelerates. the predict projectile path node works, but it’s debug visualization is poor for the purpose I… --- ## [UE 5.8.3 AddForce and AddTorque limited behavior under some threshold ](https://forums.unrealengine.com/t/ue-5-8-3-addforce-and-addtorque-limited-behavior-under-some-threshold/2839835)
**Author:** [@Cym\_IG](https://forums.unrealengine.com/u/Cym_IG)\ **Replies:** 3\ **Last updated:** [October 20, 2026, 6:32pm UTC](https://forums.unrealengine.com/t/ue-5-8-3-addforce-and-addtorque-limited-behavior-under-some-threshold/2839835 "2026-10-20T18:32:35Z")
Summary When using a blueprint “Add Force” or “Add Torque” block (with or without “Accel Change” toggle enabled), the physics is only correctly applied when the input value is above some threshold. What Type of Bug are … --- ## [How to properly trigger destruction in a Field System?](https://forums.unrealengine.com/t/how-to-properly-trigger-destruction-in-a-field-system/2616624)
**Author:** [@Extrahdmi](https://forums.unrealengine.com/u/Extrahdmi)\ **Replies:** 1\ **Last updated:** [October 18, 2026, 9:54am UTC](https://forums.unrealengine.com/t/how-to-properly-trigger-destruction-in-a-field-system/2616624 "2026-10-18T09:54:57Z")
I’ve looked at tutorials and no matter what I try I can’t get past the extreme behavior of the field system. In all cases, there is either no destruction or total destruction. What I have tried is the following. 1:Chan… --- ## [The Field system is completely broken.](https://forums.unrealengine.com/t/the-field-system-is-completely-broken/2500328)
**Author:** [@carta\_oro](https://forums.unrealengine.com/u/carta_oro)\ **Replies:** 1\ **Last updated:** [October 18, 2026, 9:28am UTC](https://forums.unrealengine.com/t/the-field-system-is-completely-broken/2500328 "2026-10-18T09:28:33Z")
I’ve been struggling to deal with this pesky system for a long time, but it’s out of control. Everything is inconsistent, doesn’t work properly, and the explanations are all fraudulent. Someone please give me a plausible… --- ## [FindSweepHits with collision\_box produces a plane and not a box](https://forums.unrealengine.com/t/findsweephits-with-collision-box-produces-a-plane-and-not-a-box/2841765)
**Author:** [@Saber\_Mateo](https://forums.unrealengine.com/u/Saber_Mateo)\ **Replies:** 0\ **Last updated:** [October 16, 2026, 5:45pm UTC](https://forums.unrealengine.com/t/findsweephits-with-collision-box-produces-a-plane-and-not-a-box/2841765 "2026-10-16T17:45:53Z")
Summary Simply put, doing this: Entity.FindSweepHits( vector3{ Up := 100.0, Left := 0.0, Forward := 0.0}, transform{}, collision\_box{ Extents := vector3{ Up :=… --- ## [How to make a Snake Contriction/Squeze physics in unreal](https://forums.unrealengine.com/t/how-to-make-a-snake-contriction-squeze-physics-in-unreal/472053)
**Author:** [@anonymous\_user\_e3f109791](https://forums.unrealengine.com/u/anonymous_user_e3f109791)\ **Replies:** 1\ **Last updated:** [October 14, 2026, 8:32pm UTC](https://forums.unrealengine.com/t/how-to-make-a-snake-contriction-squeze-physics-in-unreal/472053 "2026-10-14T20:32:09Z")
I helping a friend make a game for fun.I know basic C+ programming but rough on blueprints.We are making a game where you play as a Boa constrictor and hunt and survive as one in the tropical jungle. We manage to get sn… --- ## [How to make sweep work with rotation?](https://forums.unrealengine.com/t/how-to-make-sweep-work-with-rotation/315297)
**Author:** [@Zejji](https://forums.unrealengine.com/u/Zejji)\ **Replies:** 19\ **Last updated:** [October 12, 2026, 3:19pm UTC](https://forums.unrealengine.com/t/how-to-make-sweep-work-with-rotation/315297 "2026-10-12T15:19:44Z")
As noted in this bug report, sweep doesn’t work when using AddRelativeRotation, despite working just fine with AddRelativeLocation. (Just for the sake of clarity, I am using C++, rather than Blueprints, but I experience … --- ## [Best way to change/tune variables/settings during runtime/PIE?](https://forums.unrealengine.com/t/best-way-to-change-tune-variables-settings-during-runtime-pie/465826)
**Author:** [@Syrill](https://forums.unrealengine.com/u/Syrill)\ **Replies:** 3\ **Last updated:** [September 28, 2026, 8:29pm UTC](https://forums.unrealengine.com/t/best-way-to-change-tune-variables-settings-during-runtime-pie/465826 "2026-09-28T20:29:49Z")
I currently work on a project where the core gameplay is implemented but, since it is physics-based, now needs lots and lots of fine-tuning (several variables in the physics manipulation blueprints, weight of actor, cent… --- ## [\[PLUGIN\] DriveSim - Vehicle physics system](https://forums.unrealengine.com/t/plugin-drivesim-vehicle-physics-system/2264225)
**Author:** [@fredakilla](https://forums.unrealengine.com/u/fredakilla)\ **Replies:** 3\ **Last updated:** [September 28, 2026, 5:22pm UTC](https://forums.unrealengine.com/t/plugin-drivesim-vehicle-physics-system/2264225 "2026-09-28T17:22:11Z")
Hello everyone I have just release a physics system for vehicles with wheels to easily create car games of any kind. It’s a C++ plugin, completely usable in blueprint. You can test the demo : Demo Avail… --- ## [PHYSICS TREE (DEVICE) – BUGGED / MULTIPLE ISSUES](https://forums.unrealengine.com/t/physics-tree-device-bugged-multiple-issues/2831546)
**Author:** [@TheCr0zySky](https://forums.unrealengine.com/u/TheCr0zySky)\ **Replies:** 1\ **Last updated:** [September 24, 2026, 5:00pm UTC](https://forums.unrealengine.com/t/physics-tree-device-bugged-multiple-issues/2831546 "2026-09-24T17:00:29Z")
Summary I Made a list with a lot of Issues for the Physics-tree (Device) Shadows: In the Editor, the tree does not cast any ground shadows or self-shadows. However, the shadows appear correctly when running the map in … --- ## [Destroy Component not working](https://forums.unrealengine.com/t/destroy-component-not-working/317594)
**Author:** [@Neros](https://forums.unrealengine.com/u/Neros)\ **Replies:** 43\ **Last updated:** [September 19, 2026, 12:18pm UTC](https://forums.unrealengine.com/t/destroy-component-not-working/317594 "2026-09-19T12:18:44Z")
4.7.6 trying to replace a weapon object which is attached as a child to ‘weapon slot’ scene coponent but calling ‘Destroy Component’ doesn’t destroy anything, leaving me with multiple weapon objects in same slot. i… --- ## [Is the "Physics Control Asset" feature broken?](https://forums.unrealengine.com/t/is-the-physics-control-asset-feature-broken/2624256)
**Author:** [@hGosling](https://forums.unrealengine.com/u/hGosling)\ **Replies:** 2\ **Last updated:** [September 16, 2026, 5:27pm UTC](https://forums.unrealengine.com/t/is-the-physics-control-asset-feature-broken/2624256 "2026-09-16T17:27:25Z")
Hi everyone, I have used Physics Control a lot in the past, but only recently learned about the Physics Control Asset and it’s editor. Right now I find it unusable. I can’t assign a skeletal mesh through the UI and have… --- ## [Inconsistent gravity behaviour when fracturing Geometry Collection](https://forums.unrealengine.com/t/inconsistent-gravity-behaviour-when-fracturing-geometry-collection/2296958)
**Author:** [@Everynone](https://forums.unrealengine.com/u/Everynone)\ **Replies:** 5\ **Last updated:** [September 8, 2026, 11:43pm UTC](https://forums.unrealengine.com/t/inconsistent-gravity-behaviour-when-fracturing-geometry-collection/2296958 "2026-09-08T23:43:44Z")
Getting familiar with the subject so I might be missing something crucial. This Geometry Collection simulates physics but is not affected by gravity: I slam the actors into the ground :point\_up:, the smaller chunks… --- ## [FortPool - 8 BALL POOL \[PARTY GAME\]](https://forums.unrealengine.com/t/fortpool-8-ball-pool-party-game/2749168)
**Author:** [@PoolUniverse](https://forums.unrealengine.com/u/PoolUniverse)\ **Replies:** 0\ **Last updated:** [August 31, 2026, 4:19pm UTC](https://forums.unrealengine.com/t/fortpool-8-ball-pool-party-game/2749168 "2026-08-31T16:19:50Z")
FortPool 🎱 FortPool is a physically simulated pool island in Fortnite. Real cloth, real collisions, modular cues. Classic 8-Ball in Solo, 1v1, 1v2, and 2v2, plus a stadium you can roam, a shop, persistent stats, and a… --- ## [\[Released\] Chaos Debris Optimizer 1.1.0 — UE5 Chaos Debris Cleanup Plugin ](https://forums.unrealengine.com/t/released-chaos-debris-optimizer-1-1-0-ue5-chaos-debris-cleanup-plugin/2746154)
**Author:** [@B\_Fury](https://forums.unrealengine.com/u/B_Fury)\ **Replies:** 1\ **Last updated:** [August 28, 2026, 5:50pm UTC](https://forums.unrealengine.com/t/released-chaos-debris-optimizer-1-1-0-ue5-chaos-debris-cleanup-plugin/2746154 "2026-08-28T17:50:23Z")
Hi everyone, I’ve released Chaos Debris Optimizer 1.1.0 on Fab. Chaos Debris Optimizer is a post-destruction cleanup plugin for UE5 Chaos Geometry Collections. It helps keep destruction scenes playable after the break… --- ## [Is it possible to change gravity scale of a character via buttons? ](https://forums.unrealengine.com/t/is-it-possible-to-change-gravity-scale-of-a-character-via-buttons/2746397)
**Author:** [@Not3bow](https://forums.unrealengine.com/u/Not3bow)\ **Replies:** 2\ **Last updated:** [August 28, 2026, 3:26pm UTC](https://forums.unrealengine.com/t/is-it-possible-to-change-gravity-scale-of-a-character-via-buttons/2746397 "2026-08-28T15:26:02Z")
Hello! I am working on something where the player is supposed to be able to change their own gravity by pressing a keyboard button. I got the directional changes to work no problem, but when looking for a gravity scale … --- ## [Adding options for tracked vehicles in chaos vehicles](https://forums.unrealengine.com/t/adding-options-for-tracked-vehicles-in-chaos-vehicles/2747067)
**Author:** [@SamBordoni](https://forums.unrealengine.com/u/SamBordoni)\ **Replies:** 0\ **Last updated:** [August 28, 2026, 11:29am UTC](https://forums.unrealengine.com/t/adding-options-for-tracked-vehicles-in-chaos-vehicles/2747067 "2026-08-28T11:29:00Z")
Hi all, Many of you are probably familiar with the chaos vehicle system if you’ve ever looked into making anything drivable in unreal, and for the most part I’ve been really impressed with it and how easy it has made se… --- ## [I cant find constraint menu under the animation mode. Only showing Animation settings and spaces. I am using UE5. How can I get animation constraint option.](https://forums.unrealengine.com/t/i-cant-find-constraint-menu-under-the-animation-mode-only-showing-animation-settings-and-spaces-i-am-using-ue5-how-can-i-get-animation-constraint-option/1153918)
**Author:** [@JobinToonz](https://forums.unrealengine.com/u/JobinToonz)\ **Replies:** 2\ **Last updated:** [August 26, 2026, 11:12am UTC](https://forums.unrealengine.com/t/i-cant-find-constraint-menu-under-the-animation-mode-only-showing-animation-settings-and-spaces-i-am-using-ue5-how-can-i-get-animation-constraint-option/1153918 "2026-08-26T11:12:32Z")
I cant find constraint menu under the animation mode. Only showing Animation settings and spaces. I am using UE5. How can I get animation constraint option. --- ## [AABB Tree Time-Slice Copy Checks Time at the Wrong Interval ](https://forums.unrealengine.com/t/aabb-tree-time-slice-copy-checks-time-at-the-wrong-interval/2746326)
**Author:** [@colinsusu](https://forums.unrealengine.com/u/colinsusu)\ **Replies:** 0\ **Last updated:** [August 25, 2026, 11:38am UTC](https://forums.unrealengine.com/t/aabb-tree-time-slice-copy-checks-time-at-the-wrong-interval/2746326 "2026-08-25T11:38:36Z")
Summary The condition in TAABBTree::ProgressCopyTimeSliced() appears reversed. What Type of Bug are you experiencing? Framework Steps to Reproduce The condition in TAABBTree::ProgressCopyTimeSliced() appears reversed. … --- ## [\[bug\] Navmesh generates inside blocking static meshes and blocking volumes](https://forums.unrealengine.com/t/bug-navmesh-generates-inside-blocking-static-meshes-and-blocking-volumes/382315)
**Author:** [@Xukapy](https://forums.unrealengine.com/u/Xukapy)\ **Replies:** 24\ **Last updated:** [August 22, 2026, 7:12am UTC](https://forums.unrealengine.com/t/bug-navmesh-generates-inside-blocking-static-meshes-and-blocking-volumes/382315 "2026-08-22T07:12:25Z")
4.14.3 Why tho? --- ## [Ctrl+RightMousebutton doesn't work on physics simulation bodies \[4.26\]](https://forums.unrealengine.com/t/ctrl-rightmousebutton-doesnt-work-on-physics-simulation-bodies-4-26/498261)
**Author:** [@Stephensonmafiu](https://forums.unrealengine.com/u/Stephensonmafiu)\ **Replies:** 6\ **Last updated:** [August 21, 2026, 12:45am UTC](https://forums.unrealengine.com/t/ctrl-rightmousebutton-doesnt-work-on-physics-simulation-bodies-4-26/498261 "2026-08-21T00:45:05Z")
Hello, I’m trying to set up my custom physics asset, but I can’t debug the joint properly since during the simulation, for some reason, the ctrl+Rightclick command doesn’t do anything. In the video below it works fine … --- ## [Physics Asset Scaling Issues](https://forums.unrealengine.com/t/physics-asset-scaling-issues/120603)
**Author:** [@matan19](https://forums.unrealengine.com/u/matan19)\ **Replies:** 10\ **Last updated:** [August 12, 2026, 2:47pm UTC](https://forums.unrealengine.com/t/physics-asset-scaling-issues/120603 "2026-08-12T14:47:30Z")
I created a skeletal mesh with animation and I’m now trying to create a good collision mesh from it. I understood I can’t do that as part of the import process, so I’m trying to create separate collision meshes, export … [Next page](https://forums.unrealengine.com/tag/physics/118.md?match_all_tags=true&page=1&tags%5B%5D=Physics)