# \#collision-responses **URL:** https://forums.unrealengine.com/tag/collision-responses/110.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [How to change collision response on Chaos geometry collection](https://forums.unrealengine.com/t/how-to-change-collision-response-on-chaos-geometry-collection/477713)
**Author:** [@anonymous\_user\_c1f856dd](https://forums.unrealengine.com/u/anonymous_user_c1f856dd)\ **Replies:** 45\ **Last updated:** [May 30, 2026, 2:34pm UTC](https://forums.unrealengine.com/t/how-to-change-collision-response-on-chaos-geometry-collection/477713 "2026-05-30T14:34:03Z")
Hi, Is it possible to change collision response on Chaos geometry collection after break event occurs? What I want to achieve is, for example, to have a player collide with wall, but after that wall is broken into part… --- ## ["Find Collision UV" always returns zero for Skeletal Meshes](https://forums.unrealengine.com/t/find-collision-uv-always-returns-zero-for-skeletal-meshes/378548)
**Author:** [@Oskar\_Swierad](https://forums.unrealengine.com/u/Oskar_Swierad)\ **Replies:** 56\ **Last updated:** [February 22, 2026, 11:45am UTC](https://forums.unrealengine.com/t/find-collision-uv-always-returns-zero-for-skeletal-meshes/378548 "2026-02-22T11:45:37Z")
Hi, In UE 4.14.0, the blueprint “Find Collision UV” functions doesn’t work properly with Skeletal Meshes. While it works fine for all other objects, it returns X=0.0, Y=0.0 for any place on Epic mannequin. How to repro… --- ## [Actors react to player when Collistion Response is set to ignore pawn](https://forums.unrealengine.com/t/actors-react-to-player-when-collistion-response-is-set-to-ignore-pawn/2657033)
**Author:** [@LeoTMad1](https://forums.unrealengine.com/u/LeoTMad1)\ **Replies:** 2\ **Last updated:** [September 18, 2025, 9:42am UTC](https://forums.unrealengine.com/t/actors-react-to-player-when-collistion-response-is-set-to-ignore-pawn/2657033 "2025-09-18T09:42:35Z")
Hello, I have a feeling I might just have overlooked a simple setting, but I have encountered this strange phenomenon for some time now… (see video below) It’s not the biggest problem, and I could imagine a couple s… --- ## [Projectile Passing Through Enemy Instead of Hitting and Destroying](https://forums.unrealengine.com/t/projectile-passing-through-enemy-instead-of-hitting-and-destroying/2640162)
**Author:** [@LMXLion](https://forums.unrealengine.com/u/LMXLion)\ **Replies:** 3\ **Last updated:** [August 13, 2025, 7:52pm UTC](https://forums.unrealengine.com/t/projectile-passing-through-enemy-instead-of-hitting-and-destroying/2640162 "2025-08-13T19:52:34Z")
Hey everyone, I’m having an issue with my projectile system in UE5. My projectile is passing straight through enemies instead of hitting them and destroying itself. Projectile --- ## [Collision object channel not working as expected](https://forums.unrealengine.com/t/collision-object-channel-not-working-as-expected/479046)
**Author:** [@anonymous\_user\_cb32910b](https://forums.unrealengine.com/u/anonymous_user_cb32910b)\ **Replies:** 4\ **Last updated:** [March 23, 2025, 3:09pm UTC](https://forums.unrealengine.com/t/collision-object-channel-not-working-as-expected/479046 "2025-03-23T15:09:56Z")
Hello, I made a custom object channel named ‘player’ and associated my player with this channel. In another blueprint, I checked overlap on the player channel so that if the player walks on this object he can take it. … --- ## [My Projectile keeps hitting itself](https://forums.unrealengine.com/t/my-projectile-keeps-hitting-itself/482779)
**Author:** [@Nastic\_beamer](https://forums.unrealengine.com/u/Nastic_beamer)\ **Replies:** 4\ **Last updated:** [March 23, 2025, 12:15pm UTC](https://forums.unrealengine.com/t/my-projectile-keeps-hitting-itself/482779 "2025-03-23T12:15:07Z")
The default response of projectile is set to overlap. If I set WorldDynamic to ignore in my projectiles collision object response the projectile works fine and does not hit itself please tell me what it is that I am d… --- ## [Collision No Working As Expected](https://forums.unrealengine.com/t/collision-no-working-as-expected/2384259)
**Author:** [@Migalto](https://forums.unrealengine.com/u/Migalto)\ **Replies:** 1\ **Last updated:** [March 11, 2025, 2:31am UTC](https://forums.unrealengine.com/t/collision-no-working-as-expected/2384259 "2025-03-11T02:31:51Z")
Hello Good Afternoon I am Having some problems with the collision of my enemy, The Collision is just Working in a certain part of the box show in the picture on blue part. And i want it to be detected in any part of … --- ## [Collision box makes elevator controls not work](https://forums.unrealengine.com/t/collision-box-makes-elevator-controls-not-work/2181026)
**Author:** [@Tulioeric](https://forums.unrealengine.com/u/Tulioeric)\ **Replies:** 1\ **Last updated:** [December 9, 2024, 11:37am UTC](https://forums.unrealengine.com/t/collision-box-makes-elevator-controls-not-work/2181026 "2024-12-09T11:37:24Z")
So, i have this elevator on my project, that works just fine. Now i’ve started to set some level streaming with collision boxes. And my idea is: When i collide with the collision of the second floor, the level streaming … --- ## [Cloth Overlap or Line Trace Responses](https://forums.unrealengine.com/t/cloth-overlap-or-line-trace-responses/2121743)
**Author:** [@Weitagon](https://forums.unrealengine.com/u/Weitagon)\ **Replies:** 1\ **Last updated:** [November 14, 2024, 3:36pm UTC](https://forums.unrealengine.com/t/cloth-overlap-or-line-trace-responses/2121743 "2024-11-14T15:36:08Z")
Hello, I have created a chaos cloth asset which can move around and collide with the ground and objects placed in the world. However, I can’t seem to get any collision responses from this cloth skeletal asset. Let’s sa… --- ## [Wrong movement directions after step on physics actors](https://forums.unrealengine.com/t/wrong-movement-directions-after-step-on-physics-actors/431151)
**Author:** [@white-sparrow](https://forums.unrealengine.com/u/white-sparrow)\ **Replies:** 4\ **Last updated:** [August 20, 2024, 12:52pm UTC](https://forums.unrealengine.com/t/wrong-movement-directions-after-step-on-physics-actors/431151 "2024-08-20T12:52:34Z")
I have one Blueprint actor in My project that have several Box collision components with physics actor collision preset(See in pictures). My goal is create some stones and put them on each other for hit all of them by a … --- ## [Box sweeping gives a completely wrong normal](https://forums.unrealengine.com/t/box-sweeping-gives-a-completely-wrong-normal/1937789)
**Author:** [@kneltbuffalo](https://forums.unrealengine.com/u/kneltbuffalo)\ **Replies:** 2\ **Last updated:** [July 15, 2024, 8:24am UTC](https://forums.unrealengine.com/t/box-sweeping-gives-a-completely-wrong-normal/1937789 "2024-07-15T08:24:39Z")
Hi there, it seems box sweeping gives a wrong normal when it collides against BSP. The video shows FloatingPawnMovementComponent with Box collision sliding along a box-shaped BSP. The movement stops even … --- ## [Normal Impulse from NotifyHit Is Wrong?](https://forums.unrealengine.com/t/normal-impulse-from-notifyhit-is-wrong/763671)
**Author:** [@Houthakker888](https://forums.unrealengine.com/u/Houthakker888)\ **Replies:** 2\ **Last updated:** [May 30, 2024, 8:26am UTC](https://forums.unrealengine.com/t/normal-impulse-from-notifyhit-is-wrong/763671 "2024-05-30T08:26:28Z")
Just noticed that Normal Impulse is now in the same direction as the sweeping object’s velocity, and with variable length. IIRC that’s the opposite of how it’s supposed to work? This only happens when hitting simulated … --- ## [Static Meshes apply impulse to my player unexpectedly](https://forums.unrealengine.com/t/static-meshes-apply-impulse-to-my-player-unexpectedly/1846214)
**Author:** [@Chevidal451](https://forums.unrealengine.com/u/Chevidal451)\ **Replies:** 0\ **Last updated:** [May 8, 2024, 11:59am UTC](https://forums.unrealengine.com/t/static-meshes-apply-impulse-to-my-player-unexpectedly/1846214 "2024-05-08T11:59:05Z")
I’m making a game where I want the destruction of objects to be somewhat noticeable and fun, it turns out that when I spawn debris from an actor because I’ve hit this actor, the debris can randomly push me around making … --- ## [Can't get Event Hit to work](https://forums.unrealengine.com/t/cant-get-event-hit-to-work/436961)
**Author:** [@CookieFamous](https://forums.unrealengine.com/u/CookieFamous)\ **Replies:** 15\ **Last updated:** [May 1, 2024, 11:48am UTC](https://forums.unrealengine.com/t/cant-get-event-hit-to-work/436961 "2024-05-01T11:48:13Z")
For a while I’ve been trying to get Event Hit to work. I got Overlap to work perfectly but I need Hit instead of Overlap for some of the Event Hit functionality. I tried everything, found no fitting tutorial. It’s pret… --- ## [Collision actors flies away when too fast](https://forums.unrealengine.com/t/collision-actors-flies-away-when-too-fast/1817394)
**Author:** [@N\_DOKY](https://forums.unrealengine.com/u/N_DOKY)\ **Replies:** 0\ **Last updated:** [April 23, 2024, 4:16pm UTC](https://forums.unrealengine.com/t/collision-actors-flies-away-when-too-fast/1817394 "2024-04-23T16:16:02Z")
Hi UE Experts! How could I keep the collision actors intact? Fast speed Slow Speed Any tip would help! Thank You --- ## [ETraceTypeQuery being converted to the wrong ECollisionChannel during line trace](https://forums.unrealengine.com/t/etracetypequery-being-converted-to-the-wrong-ecollisionchannel-during-line-trace/771635)
**Author:** [@GV-Rafael-III](https://forums.unrealengine.com/u/GV-Rafael-III)\ **Replies:** 4\ **Last updated:** [March 13, 2024, 7:32pm UTC](https://forums.unrealengine.com/t/etracetypequery-being-converted-to-the-wrong-ecollisionchannel-during-line-trace/771635 "2024-03-13T19:32:37Z")
I’m using UKismetSystemLibrary::LineTraceSingle to perform line traces in C++. So far my preference for traces (unless I create a new channel for them) has been ECC\_Visibility, which is supposed to correspond to TraceTyp… --- ## [Is there a way to set up collision priority?](https://forums.unrealengine.com/t/is-there-a-way-to-set-up-collision-priority/1695662)
**Author:** [@TheoRat3](https://forums.unrealengine.com/u/TheoRat3)\ **Replies:** 3\ **Last updated:** [February 17, 2024, 8:29pm UTC](https://forums.unrealengine.com/t/is-there-a-way-to-set-up-collision-priority/1695662 "2024-02-17T20:29:13Z")
I’ve spawned target meshes on to my enemy skeletons and I was having issues getting the hits to register, but what I think the issue is that the line traces are hitting the enemy’s capsule collider before the target’s co… --- ## [Collision on static mesh not being detected](https://forums.unrealengine.com/t/collision-on-static-mesh-not-being-detected/1687036)
**Author:** [@TheoRat3](https://forums.unrealengine.com/u/TheoRat3)\ **Replies:** 1\ **Last updated:** [February 14, 2024, 1:07am UTC](https://forums.unrealengine.com/t/collision-on-static-mesh-not-being-detected/1687036 "2024-02-14T01:07:09Z")
I’m making an ability where weak points are spawned on to enemy skeletal meshes. However when spawned my line trace doesn’t seem to be detecting them. I made it so that my weak point blueprint class blocks the line trace… --- ## [UE5.1 Chaos bug. Collision response channel override not working if geometry collection in sublevel](https://forums.unrealengine.com/t/ue5-1-chaos-bug-collision-response-channel-override-not-working-if-geometry-collection-in-sublevel/1408469)
**Author:** [@Manula96](https://forums.unrealengine.com/u/Manula96)\ **Replies:** 0\ **Last updated:** [November 21, 2023, 5:57am UTC](https://forums.unrealengine.com/t/ue5-1-chaos-bug-collision-response-channel-override-not-working-if-geometry-collection-in-sublevel/1408469 "2023-11-21T05:57:00Z")
I am using UE5.1. As the topic says, I have a geometry collection in the scene. Note the GC is in a blueprint(root is defaultSceneRoot) Its in a sub-level. I implement level streaming using streaming volumes. If the geom… --- ## [What is the difference between query collision and physic collision?](https://forums.unrealengine.com/t/what-is-the-difference-between-query-collision-and-physic-collision/482840)
**Author:** [@ViaCognita](https://forums.unrealengine.com/u/ViaCognita)\ **Replies:** 1\ **Last updated:** [May 4, 2021, 6:07am UTC](https://forums.unrealengine.com/t/what-is-the-difference-between-query-collision-and-physic-collision/482840 "2021-05-04T06:07:14Z")
I’ve just started to learn Unreal development and I’m developing an Atari Pong clone. I’m having a lot of problems with collision because I don’t understand the difference between query collision and physic collision. I… --- ## [Collision Presets and Collision Issue. Movie Sequence Device / Rising Floor / Floor Rises Through Player and leaves player underneath map.](https://forums.unrealengine.com/t/collision-presets-and-collision-issue-movie-sequence-device-rising-floor-floor-rises-through-player-and-leaves-player-underneath-map/1225636)
**Author:** [@PledgedRanger](https://forums.unrealengine.com/u/PledgedRanger)\ **Replies:** 2\ **Last updated:** [July 16, 2023, 10:53am UTC](https://forums.unrealengine.com/t/collision-presets-and-collision-issue-movie-sequence-device-rising-floor-floor-rises-through-player-and-leaves-player-underneath-map/1225636 "2023-07-16T10:53:20Z")
CCD (Continuous Collision Detection) Collision Preset How do i make it so the collision of a rising floor comes through the ground and the floor rising picks up my character. I have tried ALL OF THE COLLISION PRESETS. N… --- ## [Rising Lava Floor Broken now, not working. Collision Presets and Collision Issue. Movie Sequence Device / Rising Floor / Floor Rises Through Player and leaves player underneath map.](https://forums.unrealengine.com/t/rising-lava-floor-broken-now-not-working-collision-presets-and-collision-issue-movie-sequence-device-rising-floor-floor-rises-through-player-and-leaves-player-underneath-map/1225654)
**Author:** [@PledgedRanger](https://forums.unrealengine.com/u/PledgedRanger)\ **Replies:** 1\ **Last updated:** [July 11, 2023, 1:09pm UTC](https://forums.unrealengine.com/t/rising-lava-floor-broken-now-not-working-collision-presets-and-collision-issue-movie-sequence-device-rising-floor-floor-rises-through-player-and-leaves-player-underneath-map/1225654 "2023-07-11T13:09:56Z")
This is for Rising lava floor coming out of the ground. Static Mesh Floor Sequence Animation I made makes Lava floor rise out of the ground Player must jump or be moving to land on the animated rising floor. If idle, p… --- ## [Collision Profile Name C++ // Help! Trace Hit Results wont show any custom collision profiles](https://forums.unrealengine.com/t/collision-profile-name-c-help-trace-hit-results-wont-show-any-custom-collision-profiles/736688)
**Author:** [@Subadventure](https://forums.unrealengine.com/u/Subadventure)\ **Replies:** 4\ **Last updated:** [January 1, 2023, 4:27am UTC](https://forums.unrealengine.com/t/collision-profile-name-c-help-trace-hit-results-wont-show-any-custom-collision-profiles/736688 "2023-01-01T04:27:11Z")
Hi! I added custom object channel in my project settings and set them as collision channel in my static mesh assets. Then i created SMFoliage Assets and set thier Static Mesh reference to that Static Meshes, i mentioned… --- ## [Why UE can solve self-collision of cloth but cannot handle limbs collision in skeletonal mesh based animation?](https://forums.unrealengine.com/t/why-ue-can-solve-self-collision-of-cloth-but-cannot-handle-limbs-collision-in-skeletonal-mesh-based-animation/695432)
**Author:** [@shinshiner](https://forums.unrealengine.com/u/shinshiner)\ **Replies:** 1\ **Last updated:** [November 22, 2022, 8:43am UTC](https://forums.unrealengine.com/t/why-ue-can-solve-self-collision-of-cloth-but-cannot-handle-limbs-collision-in-skeletonal-mesh-based-animation/695432 "2022-11-22T08:43:49Z")
Intuitively, solving the collision of cloth is more hard than limbs of character. Since the cloth collision are treated as large number of triangles while the limbs can be modelled as simple geometries like capsules. The… --- ## [How to do one-way physics interactions?](https://forums.unrealengine.com/t/how-to-do-one-way-physics-interactions/464921)
**Author:** [@stuck\_compiling](https://forums.unrealengine.com/u/stuck_compiling)\ **Replies:** 7\ **Last updated:** [March 26, 2022, 11:19pm UTC](https://forums.unrealengine.com/t/how-to-do-one-way-physics-interactions/464921 "2022-03-26T23:19:33Z")
I have a physics-based game, and I would like to have particle-like actors that would collide with physics-based actors without affecting them. If I make the physics-actors block particle-actors (or the other way around)… --- ## [Playing sound/particle at impact location & diff. surfaces](https://forums.unrealengine.com/t/playing-sound-particle-at-impact-location-diff-surfaces/491638)
**Author:** [@Gravedrinker](https://forums.unrealengine.com/u/Gravedrinker)\ **Replies:** 2\ **Last updated:** [December 7, 2021, 5:35pm UTC](https://forums.unrealengine.com/t/playing-sound-particle-at-impact-location-diff-surfaces/491638 "2021-12-07T17:35:02Z")
Hey I’m currently getting the hang of unreal and trying to figure out the basics. What’s the correct way to play a sound and spawn particles when an object collides with different phys materials? (For example running i… --- ## [How to create physics elastic collision reaction](https://forums.unrealengine.com/t/how-to-create-physics-elastic-collision-reaction/490861)
**Author:** [@Shadowfax2021](https://forums.unrealengine.com/u/Shadowfax2021)\ **Replies:** 3\ **Last updated:** [November 15, 2021, 5:29pm UTC](https://forums.unrealengine.com/t/how-to-create-physics-elastic-collision-reaction/490861 "2021-11-15T17:29:45Z")
I try to make an elastic collision between two cubes, but the collision reaction is inelastic - when one cube collide the other, they both continue moved together attached. The snapshot shows the scene where both cube… --- ## [Moving Actor Won't Collide](https://forums.unrealengine.com/t/moving-actor-wont-collide/489321)
**Author:** [@anonymous\_user\_b3bc4d7a](https://forums.unrealengine.com/u/anonymous_user_b3bc4d7a)\ **Replies:** 8\ **Last updated:** [October 2, 2021, 1:22am UTC](https://forums.unrealengine.com/t/moving-actor-wont-collide/489321 "2021-10-02T01:22:50Z")
Hello, I’m making an endless runner game, and I have a car that will move forward and hit an enemy. But when it’s moving, it doesn’t collide with the enemy. But if the enemy is overlapping the car when it spawns, it coll… --- ## [How can I get rid of "creases" between collision boxes on adjacent meshes?](https://forums.unrealengine.com/t/how-can-i-get-rid-of-creases-between-collision-boxes-on-adjacent-meshes/488829)
**Author:** [@arthaka324](https://forums.unrealengine.com/u/arthaka324)\ **Replies:** 2\ **Last updated:** [September 16, 2021, 7:38am UTC](https://forums.unrealengine.com/t/how-can-i-get-rid-of-creases-between-collision-boxes-on-adjacent-meshes/488829 "2021-09-16T07:38:35Z")
Hello everyone, I hope you are doing well. I have created a few minigolf levels. The gameplay is just like you’d expect - the player pushes a ball around and tries to get it into a hole. To create the level, I used brus… --- ## [Let some objects pass through an object and not let other objects](https://forums.unrealengine.com/t/let-some-objects-pass-through-an-object-and-not-let-other-objects/488747)
**Author:** [@AmnesiacKoala](https://forums.unrealengine.com/u/AmnesiacKoala)\ **Replies:** 3\ **Last updated:** [September 14, 2021, 2:44pm UTC](https://forums.unrealengine.com/t/let-some-objects-pass-through-an-object-and-not-let-other-objects/488747 "2021-09-14T14:44:44Z")
Hello people, I hope you’re healthy and good. I’m working on a 2D tower-defence game and I have a problem; There is a tower in my game and my character is trying to protect it. What I want to do is adding a condition t… [Next page](https://forums.unrealengine.com/tag/collision-responses/110.md?match_all_tags=true&page=1&tags%5B%5D=collision-responses)