# GPU Particle Collision Problem

**URL:** <https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686>\
**Category:** FX\
**Tags:** Depth-Of-Field, gpu-particles, unreal-engine, Physics, Collision, UE4, question\
**Created:** [September 4, 2017, 9:47am UTC](https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686 "2017-09-04T09:47:30Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![GioGedianidze](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GioGedianidze](https://forums.unrealengine.com/u/GioGedianidze)\
**Post date:** [September 4, 2017, 9:47am UTC](https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686/1 "2017-09-04T09:47:30Z")

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hello  
I have rain GPU Particle with scene depth collision. when I changed collision mode to distance field my particle starts flicking at the same place. Have you got any advice how to solve this problem? 😕

![212197-problemparticle.gif](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/7/1/271c11b35f882662ee0766685250c381c513c615.gif)

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**Author:** ![Phear\_Me](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Phear\_Me](https://forums.unrealengine.com/u/Phear_Me)\
**Post date:** [September 4, 2017, 2:51pm UTC](https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686/2 "2017-09-04T14:51:43Z")

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can you please either upload your file or show me the rest of the particle system

Thanks,  
Emilio ‘Pariah’ Carrillo

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**Author:** ![Phear\_Me](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Phear\_Me](https://forums.unrealengine.com/u/Phear_Me)\
**Post date:** [September 4, 2017, 2:53pm UTC](https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686/3 "2017-09-04T14:53:36Z")

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and also what are you trying to achieve with your effect because there may be a workaround

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**Author:** ![GioGedianidze](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GioGedianidze](https://forums.unrealengine.com/u/GioGedianidze)\
**Post date:** [September 4, 2017, 5:00pm UTC](https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686/4 "2017-09-04T17:00:23Z")

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[https://drive.google.com/file/d/0B1mgsdcR5VdwLWFhcnN3dXpGNVU/view?usp=sharing](https://drive.google.com/file/d/0B1mgsdcR5VdwLWFhcnN3dXpGNVU/view?usp=sharing) here is it

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**Author:** ![JanKu86](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@JanKu86](https://forums.unrealengine.com/u/JanKu86)\
**Post date:** [September 10, 2020, 4:41am UTC](https://forums.unrealengine.com/t/gpu-particle-collision-problem/403686/5 "2020-09-10T04:41:38Z")

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I know this question is ancient, but I’m having the same issue and haven’t found an answer. Did you ever solve this?