# FX

**URL:** https://forums.unrealengine.com/c/development-discussion/asset-creation/fx/129.md?page=2

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## [how to apply texture/material in a 3D model on UEFN in 2026? (Obs: In the past, it was just scrolling to the object and done... Just like that. Now it's not and I don't know how to apply properly)](https://forums.unrealengine.com/t/how-to-apply-texture-material-in-a-3d-model-on-uefn-in-2026-obs-in-the-past-it-was-just-scrolling-to-the-object-and-done-just-like-that-now-its-not-and-i-dont-know-how-to-apply-properly/2696925)

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**Author:** [@Hisefnt](https://forums.unrealengine.com/u/Hisefnt)\
**Replies:** 1\
**Last updated:** [February 3, 2026, 4:12pm UTC](https://forums.unrealengine.com/t/how-to-apply-texture-material-in-a-3d-model-on-uefn-in-2026-obs-in-the-past-it-was-just-scrolling-to-the-object-and-done-just-like-that-now-its-not-and-i-dont-know-how-to-apply-properly/2696925 "2026-02-03T16:12:55Z")

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How to apply texture/material in a 3D model on UEFN in 2026? In the past, it was just scrolling the material/texture to the object and it was done… Just like that. Now it’s not and I don’t know how to apply properly

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## [Niagara Scratch Pad - Map Set Node Question](https://forums.unrealengine.com/t/niagara-scratch-pad-map-set-node-question/2694955)

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**Author:** [@Figix](https://forums.unrealengine.com/u/Figix)\
**Replies:** 4\
**Last updated:** [January 30, 2026, 1:29am UTC](https://forums.unrealengine.com/t/niagara-scratch-pad-map-set-node-question/2694955 "2026-01-30T01:29:55Z")

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Is it possible to see values set in a Niagara Scratch Pad (using Map Set) in the Details panel? I’m setting some variables through the Parameter Map in a Scratch Pad, but I can’t find a way to view those values in…

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## [CPU access error problem?](https://forums.unrealengine.com/t/cpu-access-error-problem/1355130)

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**Author:** [@pepsi250ml](https://forums.unrealengine.com/u/pepsi250ml)\
**Replies:** 2\
**Last updated:** [January 29, 2026, 1:52pm UTC](https://forums.unrealengine.com/t/cpu-access-error-problem/1355130 "2026-01-29T13:52:50Z")

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Hey guys I set up the Static Mesh Location to spawn particles to the Static Mesh vertex location information, and connected the BP to reference the parent Static Mesh. However, I had a problem with not getting the vert…

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## [Ribbon renderer connects wrong particles when reactivating emitter](https://forums.unrealengine.com/t/ribbon-renderer-connects-wrong-particles-when-reactivating-emitter/1211764)

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**Author:** [@Youshisu](https://forums.unrealengine.com/u/Youshisu)\
**Replies:** 1\
**Last updated:** [January 17, 2026, 1:51am UTC](https://forums.unrealengine.com/t/ribbon-renderer-connects-wrong-particles-when-reactivating-emitter/1211764 "2026-01-17T01:51:15Z")

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When reactivating emitter, ribbon is created between old and new particles. But it works fine when active Preview of particles Emiter Blueprint: I toggle whole system.

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## [Why is my Decal turning into Multiple copies ? How to fix it ? ](https://forums.unrealengine.com/t/why-is-my-decal-turning-into-multiple-copies-how-to-fix-it/2691347)

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**Author:** [@Ferr\_LE](https://forums.unrealengine.com/u/Ferr_LE)\
**Replies:** 1\
**Last updated:** [January 12, 2026, 11:33am UTC](https://forums.unrealengine.com/t/why-is-my-decal-turning-into-multiple-copies-how-to-fix-it/2691347 "2026-01-12T11:33:27Z")

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Hello. So, I am new to Unreal Engine and my decals turn into multiple copies once dragged into the scene as it is shown in this photo. I’ve already tried many different steps to prevent it from happen, but they were a…

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## [Why is my Decal turning into Multiple copies in Unreal Engine 5.5 ? How to fix it ? ](https://forums.unrealengine.com/t/why-is-my-decal-turning-into-multiple-copies-in-unreal-engine-5-5-how-to-fix-it/2691353)

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**Author:** [@Ferr\_LE](https://forums.unrealengine.com/u/Ferr_LE)\
**Replies:** 1\
**Last updated:** [January 11, 2026, 10:48pm UTC](https://forums.unrealengine.com/t/why-is-my-decal-turning-into-multiple-copies-in-unreal-engine-5-5-how-to-fix-it/2691353 "2026-01-11T22:48:50Z")

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Hello. So, I am new to Unreal Engine and my decals turn into multiple copies once dragged onto the floor as it is shown in this photo. I have using Unreal Engine 5.5, and I’ve already tried many different steps to prev…

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## [Mesh Orientation, forward and top vector control on Spline path](https://forums.unrealengine.com/t/mesh-orientation-forward-and-top-vector-control-on-spline-path/690068)

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**Author:** [@Wolfrem74](https://forums.unrealengine.com/u/Wolfrem74)\
**Replies:** 4\
**Last updated:** [January 9, 2026, 8:09am UTC](https://forums.unrealengine.com/t/mesh-orientation-forward-and-top-vector-control-on-spline-path/690068 "2026-01-09T08:09:17Z")

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Hello! What is the logic and approach I should use to get the forward vector of my particle mesh to follow a spline and to make the top vector of my mesh to face away from a point while following a spline path? Example…

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## [Chaos fragments position to Niagara](https://forums.unrealengine.com/t/chaos-fragments-position-to-niagara/2690692)

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**Author:** [@Gabiru175](https://forums.unrealengine.com/u/Gabiru175)\
**Replies:** 0\
**Last updated:** [January 8, 2026, 9:44pm UTC](https://forums.unrealengine.com/t/chaos-fragments-position-to-niagara/2690692 "2026-01-08T21:44:52Z")

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Greetings, I’m working on a barrel explosion using chaos to fragment the barrel into pieces and using Niagara for the effects. As my barrel explodes the fragments fly until they hit the ground and eventually stops movi…

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## [RANT about Niagara // Scratchpad // Developer Assistant](https://forums.unrealengine.com/t/rant-about-niagara-scratchpad-developer-assistant/2672488)

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**Author:** [@Acolori\_Medien](https://forums.unrealengine.com/u/Acolori_Medien)\
**Replies:** 5\
**Last updated:** [January 3, 2026, 4:40pm UTC](https://forums.unrealengine.com/t/rant-about-niagara-scratchpad-developer-assistant/2672488 "2026-01-03T16:40:54Z")

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I just need to rant and vent for a minute about the horrendous experience that is learning niagara for Unreal 5.xx if you´re trying to do some more advanced stuff and have zero programming knowledge and try to learn scr…

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## [Niagara GPU Particle limit?](https://forums.unrealengine.com/t/niagara-gpu-particle-limit/469219)

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**Author:** [@Waroth](https://forums.unrealengine.com/u/Waroth)\
**Replies:** 8\
**Last updated:** [December 23, 2025, 3:54pm UTC](https://forums.unrealengine.com/t/niagara-gpu-particle-limit/469219 "2025-12-23T15:54:37Z")

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Hi all, I’m trying to spawn a couple million GPU particles in niagara but I can’t seem to go over 2,000,000 particles. I’ve referred to this answerhub post in the past and remember adjusting the hard coded limit from the…

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## [NEW NDC Blueprint API](https://forums.unrealengine.com/t/new-ndc-blueprint-api/2686978)

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**Author:** [@OptimisticMonkey](https://forums.unrealengine.com/u/OptimisticMonkey)\
**Replies:** 1\
**Last updated:** [December 23, 2025, 1:28pm UTC](https://forums.unrealengine.com/t/new-ndc-blueprint-api/2686978 "2025-12-23T13:28:35Z")

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There is a new NDC Blueprint API. The old API is marked Legacy. Here is some new documentation: This seems heavily oriented toward island NDC. I am using Global NDC in most scenarios. I cant figure out haw to use …

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## [Geometry collection or fractured mesh niagara system?](https://forums.unrealengine.com/t/geometry-collection-or-fractured-mesh-niagara-system/2685830)

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**Author:** [@Krileon](https://forums.unrealengine.com/u/Krileon)\
**Replies:** 9\
**Last updated:** [December 21, 2025, 11:17pm UTC](https://forums.unrealengine.com/t/geometry-collection-or-fractured-mesh-niagara-system/2685830 "2025-12-21T23:17:04Z")

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Is it possible to render a geometry collection from niagara instead of the actor component or actor itself? Or somehow fracture a mesh as a niagara system? I don’t really need it to be perfect, but I’d prefer to be able …

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## [Add velocity along mesh normals in Niagara?](https://forums.unrealengine.com/t/add-velocity-along-mesh-normals-in-niagara/1967551)

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**Author:** [@cwalrus](https://forums.unrealengine.com/u/cwalrus)\
**Replies:** 1\
**Last updated:** [December 20, 2025, 7:07am UTC](https://forums.unrealengine.com/t/add-velocity-along-mesh-normals-in-niagara/1967551 "2025-12-20T07:07:43Z")

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Hi people - I have watched a tutorial that instructs you to add “Static Mesh Velocity” and “Add Velocity Along Mesh Normals” but it appears that these options have disappeared in UE 5.4.3 Am I missing something? How ca…

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## [Niagara skeletal mesh how to add forces or velocity?](https://forums.unrealengine.com/t/niagara-skeletal-mesh-how-to-add-forces-or-velocity/486439)

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**Author:** [@Flame](https://forums.unrealengine.com/u/Flame)\
**Replies:** 2\
**Last updated:** [December 15, 2025, 3:59pm UTC](https://forums.unrealengine.com/t/niagara-skeletal-mesh-how-to-add-forces-or-velocity/486439 "2025-12-15T15:59:17Z")

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hi guys I’m having trouble using the initialize mesh reproduction sprite and the update mesh reproduction sprite. For some reason when I have them, I get particles spawning on the skeletal mesh, but I cant get the parti…

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## [Rotate Niagara System - LocalSpace does not work!](https://forums.unrealengine.com/t/rotate-niagara-system-localspace-does-not-work/1965484)

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**Author:** [@Etyuhibosecyu](https://forums.unrealengine.com/u/Etyuhibosecyu)\
**Replies:** 9\
**Last updated:** [December 4, 2025, 4:26pm UTC](https://forums.unrealengine.com/t/rotate-niagara-system-localspace-does-not-work/1965484 "2025-12-04T16:26:58Z")

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I have a GPU Niagara System and try to rotate it. I have written in old topics that there is “LocalSpace” for this. But somewhy it doesn’t work. Here are my emitter properties: Is it possible to set rotation somewhe…

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## [Removing duplicate particles that occupy the same position \[Niagara\]](https://forums.unrealengine.com/t/removing-duplicate-particles-that-occupy-the-same-position-niagara/2675396)

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**Author:** [@TactileVisions](https://forums.unrealengine.com/u/TactileVisions)\
**Replies:** 3\
**Last updated:** [December 3, 2025, 4:07pm UTC](https://forums.unrealengine.com/t/removing-duplicate-particles-that-occupy-the-same-position-niagara/2675396 "2025-12-03T16:07:02Z")

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Hi, I’m trying to get rid of duplicate particles that are at the same spot as another particle. I’ve created this scratchpad module that is supposed to set a bool, which is then used in a “KillParticle” module. Howe…

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## [How to detect physical material with Niagara ue4Niagara?](https://forums.unrealengine.com/t/how-to-detect-physical-material-with-niagara-ue4niagara/475932)

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**Author:** [@KIng\_RaaShaa](https://forums.unrealengine.com/u/KIng_RaaShaa)\
**Replies:** 1\
**Last updated:** [November 29, 2025, 8:45pm UTC](https://forums.unrealengine.com/t/how-to-detect-physical-material-with-niagara-ue4niagara/475932 "2025-11-29T20:45:33Z")

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how to detect physical material with Niagara ue4?

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## [Niagara System can't Enable/Disable Sub Emitter via blueprint](https://forums.unrealengine.com/t/niagara-system-cant-enable-disable-sub-emitter-via-blueprint/486510)

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**Author:** [@Talo](https://forums.unrealengine.com/u/Talo)\
**Replies:** 6\
**Last updated:** [November 26, 2025, 12:28am UTC](https://forums.unrealengine.com/t/niagara-system-cant-enable-disable-sub-emitter-via-blueprint/486510 "2025-11-26T00:28:04Z")

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Im trying to enable/disable a Niagara sub emitter with the Set Emitter Enable function I’m sure that it is called in blueprint but the sub emitter doesn’t get deactivated/activated. The emitter name in the niagara sys…

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## [Trying to recreate a boss pattern with Niagara](https://forums.unrealengine.com/t/trying-to-recreate-a-boss-pattern-with-niagara/2677834)

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**Author:** [@Gladtobeglad](https://forums.unrealengine.com/u/Gladtobeglad)\
**Replies:** 0\
**Last updated:** [November 23, 2025, 6:20pm UTC](https://forums.unrealengine.com/t/trying-to-recreate-a-boss-pattern-with-niagara/2677834 "2025-11-23T18:20:12Z")

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Hello, I’m trying to recreate a pattern from Nier: Automata (Opera boss) using a Niagara System for the FX. Here’s the pattern: What I’m really struggling to do is the smokey part of it, and I really don’t know whe…

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## [Mesh particles // Add random rotation on one axis with spin](https://forums.unrealengine.com/t/mesh-particles-add-random-rotation-on-one-axis-with-spin/2675093)

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**Author:** [@Acolori\_Medien](https://forums.unrealengine.com/u/Acolori_Medien)\
**Replies:** 0\
**Last updated:** [November 14, 2025, 1:40pm UTC](https://forums.unrealengine.com/t/mesh-particles-add-random-rotation-on-one-axis-with-spin/2675093 "2025-11-14T13:40:56Z")

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Hey there, pretty new to niagara and struggling to do the following: I have some mesh particles and update their rotation based on their flight path, so they always point towards their movement vector. This is pretty …

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## [Chain Events in Niagara / "Flag" particles / Spawn from different NS System](https://forums.unrealengine.com/t/chain-events-in-niagara-flag-particles-spawn-from-different-ns-system/2674128)

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**Author:** [@Acolori\_Medien](https://forums.unrealengine.com/u/Acolori_Medien)\
**Replies:** 0\
**Last updated:** [November 12, 2025, 8:32am UTC](https://forums.unrealengine.com/t/chain-events-in-niagara-flag-particles-spawn-from-different-ns-system/2674128 "2025-11-12T08:32:08Z")

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I´m coming from 3ds max TyFlow and I am struggling to create some of the features I regularily need. Events. TyFlow has a node based workflow, that basically groups particles in “events”, which can each hold a bunch o…

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## [UE 5.6 Niagara Ribbon Position Help ](https://forums.unrealengine.com/t/ue-5-6-niagara-ribbon-position-help/2673075)

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**Author:** [@Hubiny](https://forums.unrealengine.com/u/Hubiny)\
**Replies:** 0\
**Last updated:** [November 8, 2025, 10:20pm UTC](https://forums.unrealengine.com/t/ue-5-6-niagara-ribbon-position-help/2673075 "2025-11-08T22:20:08Z")

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Hello, I have Leader emitter with 5 different particle burst in different delays. In Particle Update I modified the Position to a custom one called “RotatePosition“ in which I just added some sine and cosine to make th…

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## [Niagara Vapor animation of a cooktop ](https://forums.unrealengine.com/t/niagara-vapor-animation-of-a-cooktop/2672873)

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**Author:** [@lovin995](https://forums.unrealengine.com/u/lovin995)\
**Replies:** 0\
**Last updated:** [November 8, 2025, 12:58am UTC](https://forums.unrealengine.com/t/niagara-vapor-animation-of-a-cooktop/2672873 "2025-11-08T00:58:25Z")

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Hello , any Niagara magicians here that could help me or guide me to create something similar to this ? https://youtu.be/TgtuUcIXmSA?si=cAfgg8-ubrd9YKiQ , thank you so much !!!

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## [Niagara Data Channel – Particle Data Export Not Working After Refactor](https://forums.unrealengine.com/t/niagara-data-channel-particle-data-export-not-working-after-refactor/2654397)

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**Author:** [@Kawiszu](https://forums.unrealengine.com/u/Kawiszu)\
**Replies:** 1\
**Last updated:** [October 30, 2025, 10:12pm UTC](https://forums.unrealengine.com/t/niagara-data-channel-particle-data-export-not-working-after-refactor/2654397 "2025-10-30T22:12:33Z")

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Hi everyone, I’m working on a destruction system using Niagara. In my first version, I used a Niagara System that exported Particle Data to a Blueprint. In the Blueprint I checked for collision points, spawned decals…

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## [Export HDRI backdrop with UV Mapping?](https://forums.unrealengine.com/t/export-hdri-backdrop-with-uv-mapping/2669845)

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**Author:** [@gldsgns](https://forums.unrealengine.com/u/gldsgns)\
**Replies:** 0\
**Last updated:** [October 29, 2025, 11:02pm UTC](https://forums.unrealengine.com/t/export-hdri-backdrop-with-uv-mapping/2669845 "2025-10-29T23:02:20Z")

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Is there some way to export the HDRI Backdrop (plugin) so that the Enviro Dome mash retains projection settings for UV mapping in another DCC? I have a good setup in Unreal, but need to perform environment modeling oper…

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## [How can the Niagara systems profiler be cleared?](https://forums.unrealengine.com/t/how-can-the-niagara-systems-profiler-be-cleared/2667443)

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**Author:** [@kennetherhabor](https://forums.unrealengine.com/u/kennetherhabor)\
**Replies:** 1\
**Last updated:** [October 22, 2025, 6:27am UTC](https://forums.unrealengine.com/t/how-can-the-niagara-systems-profiler-be-cleared/2667443 "2025-10-22T06:27:20Z")

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When profiling Niagara systems using the ‘stat niagarasystems’ console command or from the editor ‘Stat \> Niagara \> NiagaraSystems’, even in an empty map, the profiler continues to show Niagara systems that are not in th…

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## [Bug in Fog particle / material in UE 5.6](https://forums.unrealengine.com/t/bug-in-fog-particle-material-in-ue-5-6/2666665)

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**Author:** [@Da\_Stranger](https://forums.unrealengine.com/u/Da_Stranger)\
**Replies:** 0\
**Last updated:** [October 19, 2025, 11:30am UTC](https://forums.unrealengine.com/t/bug-in-fog-particle-material-in-ue-5-6/2666665 "2025-10-19T11:30:04Z")

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I’ve got simple materials and particle systems for fog. They worked perfectly until 5.6. Can someone point me in the right direction as to why they broke in 5.6 (see P\_Fog\_1 and P\_Fog\_2)? Content.7z (231.0 KB)

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## [Write To Niagara Data Channel (Batch)](https://forums.unrealengine.com/t/write-to-niagara-data-channel-batch/2569806)

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**Author:** [@Pur3Ven0m](https://forums.unrealengine.com/u/Pur3Ven0m)\
**Replies:** 2\
**Last updated:** [October 16, 2025, 8:06pm UTC](https://forums.unrealengine.com/t/write-to-niagara-data-channel-batch/2569806 "2025-10-16T20:06:59Z")

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Does anyone have any example they would be willing to share of how to call and read from the new Data Channel system. I tried to follow the tutorial that is available but it does not seem to work with batch sends. Th…

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## [In Devil May Cry 5, how was the glass-shattering space effect in Vergil’s technique Judgment Cut End implemented? ](https://forums.unrealengine.com/t/in-devil-may-cry-5-how-was-the-glass-shattering-space-effect-in-vergil-s-technique-judgment-cut-end-implemented/2665178)

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**Author:** [@Thatolol](https://forums.unrealengine.com/u/Thatolol)\
**Replies:** 0\
**Last updated:** [October 14, 2025, 1:15pm UTC](https://forums.unrealengine.com/t/in-devil-may-cry-5-how-was-the-glass-shattering-space-effect-in-vergil-s-technique-judgment-cut-end-implemented/2665178 "2025-10-14T13:15:59Z")

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Is there a post-process effect that can create that kind of effect?

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## [How can I use Niagara particles to paint onto a Grid2D hooked up to a skeletal mesh? ](https://forums.unrealengine.com/t/how-can-i-use-niagara-particles-to-paint-onto-a-grid2d-hooked-up-to-a-skeletal-mesh/2663945)

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**Author:** [@Metal\_Vortex](https://forums.unrealengine.com/u/Metal_Vortex)\
**Replies:** 0\
**Last updated:** [October 10, 2025, 3:09am UTC](https://forums.unrealengine.com/t/how-can-i-use-niagara-particles-to-paint-onto-a-grid2d-hooked-up-to-a-skeletal-mesh/2663945 "2025-10-10T03:09:03Z")

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Hey guys, I’m new here! I’m working on an effect where I spawn water droplet particles on a skeletal mesh and have them drip down the mesh using a TraverseSkeletalMesh node. I got that working no problem, but I wanted to…

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