# \#particle-system **URL:** https://forums.unrealengine.com/tag/particle-system/3312.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Why doesn't my particle system deactivate?](https://forums.unrealengine.com/t/why-doesnt-my-particle-system-deactivate/283712)
**Author:** [@Kochab](https://forums.unrealengine.com/u/Kochab)\ **Replies:** 7\ **Last updated:** [February 5, 2025, 7:45am UTC](https://forums.unrealengine.com/t/why-doesnt-my-particle-system-deactivate/283712 "2025-02-05T07:45:47Z")
In my weapon blueprint, I have 6 particle system components. On Event BeginPlay I put them all into an array. I have a StartFiring event which activates all the beams and a StopFiring event which is supposed to deactiv… --- ## [Particle effect can't display when package game with shipping build configuration](https://forums.unrealengine.com/t/particle-effect-cant-display-when-package-game-with-shipping-build-configuration/352892)
**Author:** [@thorcxcx](https://forums.unrealengine.com/u/thorcxcx)\ **Replies:** 10\ **Last updated:** [July 21, 2024, 2:00pm UTC](https://forums.unrealengine.com/t/particle-effect-cant-display-when-package-game-with-shipping-build-configuration/352892 "2024-07-21T14:00:54Z")
In UE 4.11, I’m doing a particle effect that there is a ribbon follows a particle so it’s leaves a nice trail.I try to package the game in shipping build configuration,but when i run the game in the package folder, the r… --- ## [Movable Particle Effect](https://forums.unrealengine.com/t/movable-particle-effect/1801909)
**Author:** [@GlasyaLabolasHun1](https://forums.unrealengine.com/u/GlasyaLabolasHun1)\ **Replies:** 0\ **Last updated:** [April 13, 2024, 1:31pm UTC](https://forums.unrealengine.com/t/movable-particle-effect/1801909 "2024-04-13T13:31:33Z")
Hi, I made a candle actor with a particle effect for the flame. I want the character to hold it while moving around. What I made is actually working fine but when I move the flame looks weird. I am not good with particle… --- ## [The death of a particle is delayed after hitting a wall](https://forums.unrealengine.com/t/the-death-of-a-particle-is-delayed-after-hitting-a-wall/1764950)
**Author:** [@BBblockers](https://forums.unrealengine.com/u/BBblockers)\ **Replies:** 1\ **Last updated:** [March 26, 2024, 10:03am UTC](https://forums.unrealengine.com/t/the-death-of-a-particle-is-delayed-after-hitting-a-wall/1764950 "2024-03-26T10:03:07Z")
Hello! I made a simple Niagara system with three emitters: Head, FollowingGlow (which follows the head) and the OnDeathGlow which is spawned after the death of the HeadEmitter. I have an issue that there is a delay bet… --- ## [Niagara UE4.27 - Particle attached to player leaves ghosting trail/blur with & without TAA?](https://forums.unrealengine.com/t/niagara-ue4-27-particle-attached-to-player-leaves-ghosting-trail-blur-with-without-taa/1413477)
**Author:** [@isikdev](https://forums.unrealengine.com/u/isikdev)\ **Replies:** 3\ **Last updated:** [January 23, 2024, 3:15pm UTC](https://forums.unrealengine.com/t/niagara-ue4-27-particle-attached-to-player-leaves-ghosting-trail-blur-with-without-taa/1413477 "2024-01-23T15:15:52Z")
Hi, I have particles attached to my characters armor and weapon. The system that is attached to the armor is using global space and the one attached to the weapons is using local space. When the character moves/rotates … --- ## [Shadow/Smoke Character Body Material/Particle System](https://forums.unrealengine.com/t/shadow-smoke-character-body-material-particle-system/474221)
**Author:** [@Moghura](https://forums.unrealengine.com/u/Moghura)\ **Replies:** 4\ **Last updated:** [November 27, 2023, 11:31am UTC](https://forums.unrealengine.com/t/shadow-smoke-character-body-material-particle-system/474221 "2023-11-27T11:31:12Z")
How could I make a character that have a body made out of “shadows”? Pretty much like Zed’s Living Shadow/Shadow Clone (W) from league of legends, or even Dormin and the colossus “souls” from Shadow of the Colossus. Can … --- ## [Ribbon particle not visible when coming from behind](https://forums.unrealengine.com/t/ribbon-particle-not-visible-when-coming-from-behind/391851)
**Author:** [@EstherZuidgeest](https://forums.unrealengine.com/u/EstherZuidgeest)\ **Replies:** 8\ **Last updated:** [October 30, 2023, 1:20am UTC](https://forums.unrealengine.com/t/ribbon-particle-not-visible-when-coming-from-behind/391851 "2023-10-30T01:20:43Z")
In our setup we are moving along a road. Then we simulate traffic coming from behind overtaking you and traffic that is on the other lane traveling towards you. I visualize this traffic with a ribbon particle. I have an… --- ## [\[Niagara Particle\] Black vertical lines in the Ribbon effect](https://forums.unrealengine.com/t/niagara-particle-black-vertical-lines-in-the-ribbon-effect/1268933)
**Author:** [@paulohf](https://forums.unrealengine.com/u/paulohf)\ **Replies:** 1\ **Last updated:** [August 22, 2023, 6:01pm UTC](https://forums.unrealengine.com/t/niagara-particle-black-vertical-lines-in-the-ribbon-effect/1268933 "2023-08-22T18:01:08Z")
Why my Ribbon has this black vertical lines, I tried everything and I don’t know how to fix it (Even with the basic Ribbon Material those line appears) Also, for some reason, at the half of the circle, the ribbon… --- ## [How to prevent "world grid extents" from scaling Niagara fluid particles?](https://forums.unrealengine.com/t/how-to-prevent-world-grid-extents-from-scaling-niagara-fluid-particles/1219769)
**Author:** [@lehuan5062](https://forums.unrealengine.com/u/lehuan5062)\ **Replies:** 1\ **Last updated:** [July 5, 2023, 10:49am UTC](https://forums.unrealengine.com/t/how-to-prevent-world-grid-extents-from-scaling-niagara-fluid-particles/1219769 "2023-07-05T10:49:14Z")
Hello, I’m trying to use a built-in Niagara fluid template called “Grid 3D FLIP Pool” (right click in Content Browser \> Niagara System \> New system from a template… \> Grid 3D FLIP Pool). To enlarge the system in the lev… --- ## [How to seek/set desired age of Niagara System effect](https://forums.unrealengine.com/t/how-to-seek-set-desired-age-of-niagara-system-effect/749480)
**Author:** [@Willard720](https://forums.unrealengine.com/u/Willard720)\ **Replies:** 2\ **Last updated:** [June 20, 2023, 8:37pm UTC](https://forums.unrealengine.com/t/how-to-seek-set-desired-age-of-niagara-system-effect/749480 "2023-06-20T20:37:08Z")
I’m trying to create a marching ants effect, like in photoshop, to show a region that has been copied. I’m using niagara for this, and the particle is fine but it takes time for the “ants” to march over from their spawn… --- ## [Niagara crashing on play](https://forums.unrealengine.com/t/niagara-crashing-on-play/1174419)
**Author:** [@deephal0](https://forums.unrealengine.com/u/deephal0)\ **Replies:** 5\ **Last updated:** [June 13, 2023, 3:06pm UTC](https://forums.unrealengine.com/t/niagara-crashing-on-play/1174419 "2023-06-13T15:06:43Z")
so I created a audio visualisation particle system it worked fine in the viewport but when I pressed play it crashed with this error "unhandled Exception: EXCEPTION\_ACCESS\_VIOLATION reading address 0xffffffffffffffff nt… --- ## [audio visualisation Niagara system crashing on play ue5.2](https://forums.unrealengine.com/t/audio-visualisation-niagara-system-crashing-on-play-ue5-2/1186827)
**Author:** [@deephal0](https://forums.unrealengine.com/u/deephal0)\ **Replies:** 1\ **Last updated:** [June 2, 2023, 3:59pm UTC](https://forums.unrealengine.com/t/audio-visualisation-niagara-system-crashing-on-play-ue5-2/1186827 "2023-06-02T15:59:05Z")
So I had used a YouTube video(that’s 2 years old) to create audio visualisation particle system and testing it in the editor is find but as soon as I press play it crashes. if you have a fix please tell. --- ## [Niagara Music Visualizer (Flicker warning! Critique Welcome)](https://forums.unrealengine.com/t/niagara-music-visualizer-flicker-warning-critique-welcome/770563)
**Author:** [@TactileVisions](https://forums.unrealengine.com/u/TactileVisions)\ **Replies:** 4\ **Last updated:** [February 15, 2023, 3:52pm UTC](https://forums.unrealengine.com/t/niagara-music-visualizer-flicker-warning-critique-welcome/770563 "2023-02-15T15:52:09Z")
Created a music visualizer using Unreal Engine’s Niagara particle system for the effects, TouchDesigner for analyzing the music and a local OSC (Open Sound Control) server to communicate between the two. T… --- ## [Particle sprites orientation](https://forums.unrealengine.com/t/particle-sprites-orientation/727272)
**Author:** [@Nexusgot](https://forums.unrealengine.com/u/Nexusgot)\ **Replies:** 0\ **Last updated:** [December 13, 2022, 11:23am UTC](https://forums.unrealengine.com/t/particle-sprites-orientation/727272 "2022-12-13T11:23:03Z")
Hello everyone, I have a problem I can’t resolve. I’m not good with particles and I need to rotate the particle sprites according to the actor rotation. The problem is that even with “Local Space” enabled the rotation st… --- ## [Particle Beam issues - anyone know a fix?](https://forums.unrealengine.com/t/particle-beam-issues-anyone-know-a-fix/396834)
**Author:** [@Unisink2020](https://forums.unrealengine.com/u/Unisink2020)\ **Replies:** 3\ **Last updated:** [August 27, 2022, 7:33am UTC](https://forums.unrealengine.com/t/particle-beam-issues-anyone-know-a-fix/396834 "2022-08-27T07:33:33Z")
I’m starting to think beam particle support was coded by monkeys. Nothing seems to work right. As you can see here, the taper is not working right, it’s not tapering, just acting stupid. Also, when I go into REQUIRED mod… --- ## [Particle effects take too long to kick off in the sequence](https://forums.unrealengine.com/t/particle-effects-take-too-long-to-kick-off-in-the-sequence/625055)
**Author:** [@anonymous\_user\_0f0c6e41](https://forums.unrealengine.com/u/anonymous_user_0f0c6e41)\ **Replies:** 5\ **Last updated:** [August 21, 2022, 9:49am UTC](https://forums.unrealengine.com/t/particle-effects-take-too-long-to-kick-off-in-the-sequence/625055 "2022-08-21T09:49:54Z")
I want to render a small part of my timeline in 2k fps for slow motion and because in real time its only 1/20 of a second or smth and because all the particle effects kick off at the beginning of the render they havent r… --- ## [Mesh particle(use local space) with world position offset (local space to world space) is not working properly](https://forums.unrealengine.com/t/mesh-particle-use-local-space-with-world-position-offset-local-space-to-world-space-is-not-working-properly/472416)
**Author:** [@Anonymous\_d7d94bfc69cf82975b38cef412cffdbb](https://forums.unrealengine.com/u/Anonymous_d7d94bfc69cf82975b38cef412cffdbb)\ **Replies:** 2\ **Last updated:** [June 16, 2022, 3:02pm UTC](https://forums.unrealengine.com/t/mesh-particle-use-local-space-with-world-position-offset-local-space-to-world-space-is-not-working-properly/472416 "2022-06-16T15:02:09Z")
“use local space” optioned mesh particle with world position offset (local space to world space) material is not working properly in 4.25. (confirmed working in 4.21) This means static mesh morph target node is not work… --- ## [How to set overall opacity for a particle system?](https://forums.unrealengine.com/t/how-to-set-overall-opacity-for-a-particle-system/295454)
**Author:** [@theonecalledtom](https://forums.unrealengine.com/u/theonecalledtom)\ **Replies:** 3\ **Last updated:** [February 3, 2022, 2:01am UTC](https://forums.unrealengine.com/t/how-to-set-overall-opacity-for-a-particle-system/295454 "2022-02-03T02:01:30Z")
Hi There, I have a particle system that fades particles in and out during their lifetime using the particle editor. I would like to scale the overall opacity of the system, so that I can fade it in and out as a whole. R… --- ## [Start/Stop Emitting Particle System Component](https://forums.unrealengine.com/t/start-stop-emitting-particle-system-component/303800)
**Author:** [@Slowmanrunning](https://forums.unrealengine.com/u/Slowmanrunning)\ **Replies:** 3\ **Last updated:** [July 11, 2021, 5:25pm UTC](https://forums.unrealengine.com/t/start-stop-emitting-particle-system-component/303800 "2021-07-11T17:25:36Z")
I have a UParticleSystemComponent attached to my main actor which leaves behind a trail. I’ve gotten it working, but I haven’t been able to figure out how to make it emit/stop emitting on command, so I can have the trail… --- ## [Attach Particle Source/Target Within Actor](https://forums.unrealengine.com/t/attach-particle-source-target-within-actor/474844)
**Author:** [@anonymous\_user\_3ad9ae12](https://forums.unrealengine.com/u/anonymous_user_3ad9ae12)\ **Replies:** 0\ **Last updated:** [November 22, 2020, 3:35pm UTC](https://forums.unrealengine.com/t/attach-particle-source-target-within-actor/474844 "2020-11-22T15:35:25Z")
I have a lightning particle system that’s generated from a source-and-target. I also have an actor that I want to put the particle system in. I tried using the Vector Method for the source and target, but I couldn’t get … --- ## [\[Ray Tracing Reflection\] Is there any way to reflect particle system with ray traced reflection](https://forums.unrealengine.com/t/ray-tracing-reflection-is-there-any-way-to-reflect-particle-system-with-ray-traced-reflection/473293)
**Author:** [@anon57286820](https://forums.unrealengine.com/u/anon57286820)\ **Replies:** 0\ **Last updated:** [October 22, 2020, 4:56am UTC](https://forums.unrealengine.com/t/ray-tracing-reflection-is-there-any-way-to-reflect-particle-system-with-ray-traced-reflection/473293 "2020-10-22T04:56:53Z")
Now i am trying the ray tracing reflection in Unreal Engine 4.25. With RTX on in PostProcessVolume, i can get the correct opaque and transparent reflection. However, the particle system is reflected incorrectly. Is there… --- ## [Bug: Particle's Vel/Life causes position shift](https://forums.unrealengine.com/t/bug-particles-vel-life-causes-position-shift/290058)
**Author:** [@KillerPenguin](https://forums.unrealengine.com/u/KillerPenguin)\ **Replies:** 36\ **Last updated:** [October 24, 2019, 9:33pm UTC](https://forums.unrealengine.com/t/bug-particles-vel-life-causes-position-shift/290058 "2019-10-24T21:33:54Z")
Hello all, reporting a problem with particle system here. When you put absolute velocity in Particle’s Velocity/Life module, your particle’s initial position will be shifted by the same amount without calculating its ro… --- ## [How to do basic fluids?](https://forums.unrealengine.com/t/how-to-do-basic-fluids/372734)
**Author:** [@cdleu430](https://forums.unrealengine.com/u/cdleu430)\ **Replies:** 3\ **Last updated:** [October 22, 2019, 9:38am UTC](https://forums.unrealengine.com/t/how-to-do-basic-fluids/372734 "2019-10-22T09:38:30Z")
Hello, I am making a cooking game and want to have tomato/pizza sauce. So I want to make a red fluid that is somewhat thick. Is there a good place to start on this or some open source asset stuff I can download and buil… --- ## [Why does my particle system block a trigger volume?](https://forums.unrealengine.com/t/why-does-my-particle-system-block-a-trigger-volume/448383)
**Author:** [@anonymous\_user\_164772aa](https://forums.unrealengine.com/u/anonymous_user_164772aa)\ **Replies:** 0\ **Last updated:** [May 6, 2019, 2:13pm UTC](https://forums.unrealengine.com/t/why-does-my-particle-system-block-a-trigger-volume/448383 "2019-05-06T14:13:19Z")
Hello, everyone! I’m a total noob here, so I’m struggling to make it all work. I have a particle system of a lightning/fantasy portal, which is triggered when a player enters certain area. According to my plan, the play… --- ## [How do i prevent particles from entering a water volume?](https://forums.unrealengine.com/t/how-do-i-prevent-particles-from-entering-a-water-volume/324007)
**Author:** [@Illusionweaver](https://forums.unrealengine.com/u/Illusionweaver)\ **Replies:** 4\ **Last updated:** [February 6, 2019, 5:27pm UTC](https://forums.unrealengine.com/t/how-do-i-prevent-particles-from-entering-a-water-volume/324007 "2019-02-06T17:27:57Z")
Hi there, We have a VR scene with a river and a waterfall, the waterfall has a particle splash fx at the bottom. This all looks great but the problem is that the floating water mist particles float through the watersurf… --- ## [Stop rendering ribbon trail when it is dead](https://forums.unrealengine.com/t/stop-rendering-ribbon-trail-when-it-is-dead/441646)
**Author:** [@anonymous\_user\_ea808eec1](https://forums.unrealengine.com/u/anonymous_user_ea808eec1)\ **Replies:** 0\ **Last updated:** [January 19, 2019, 5:20pm UTC](https://forums.unrealengine.com/t/stop-rendering-ribbon-trail-when-it-is-dead/441646 "2019-01-19T17:20:54Z")
Hi everybody, I am a noobie in Unreal but really appreciate the software. Here is my question : I am creating a particle system where I am basically only using the ribbon trail. I control the “death” by selecting the “… --- ## [How to make rain particle system cover my entire map?](https://forums.unrealengine.com/t/how-to-make-rain-particle-system-cover-my-entire-map/440911)
**Author:** [@dutchiexx](https://forums.unrealengine.com/u/dutchiexx)\ **Replies:** 3\ **Last updated:** [January 10, 2019, 3:52am UTC](https://forums.unrealengine.com/t/how-to-make-rain-particle-system-cover-my-entire-map/440911 "2019-01-10T03:52:24Z")
I am making a multiplayer open world survival game that has a very large map, but I cant seem to figure out how to apply my rain particle system to my entire map. My particle system has a initial location node that I can… --- ## [Lightning disappearing?](https://forums.unrealengine.com/t/lightning-disappearing/439635)
**Author:** [@mihovil](https://forums.unrealengine.com/u/mihovil)\ **Replies:** 2\ **Last updated:** [December 17, 2018, 4:15pm UTC](https://forums.unrealengine.com/t/lightning-disappearing/439635 "2018-12-17T16:15:42Z")
Hi! I’m using one of the Paragon gadget mesh particle effect to create a lightning effect. The problem is that it disappears at certain camera angle. Almost as if the mesh is being culled. How do i prevent that? Video … --- ## [How do I make lightning Anim trails?](https://forums.unrealengine.com/t/how-do-i-make-lightning-anim-trails/427601)
**Author:** [@Heavenwinds](https://forums.unrealengine.com/u/Heavenwinds)\ **Replies:** 1\ **Last updated:** [November 27, 2018, 8:48pm UTC](https://forums.unrealengine.com/t/how-do-i-make-lightning-anim-trails/427601 "2018-11-27T20:48:31Z")
I am trying to make a lightning trail for when the character runs kinda like the flash. there is a particle emitter that is electricity and its perfect for what I want but it uses the “Beam TypeData” and I would like to… --- ## [Mesh Particles Not Colliding When In Fullscreen](https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591)
**Author:** [@anonymous\_user\_c38dacc2](https://forums.unrealengine.com/u/anonymous_user_c38dacc2)\ **Replies:** 2\ **Last updated:** [September 13, 2018, 2:03am UTC](https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591 "2018-09-13T02:03:52Z")
I have set up a simple mesh emitter that spew out coins into a container, the coins bounce when they collide and then remain still. This works perfectly, when viewing it in the editor. Though when in fullscreen, the par… [Next page](https://forums.unrealengine.com/tag/particle-system/3312.md?match_all_tags=true&page=1&tags%5B%5D=particle-system)