# Mesh Particles Not Colliding When In Fullscreen

**URL:** <https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591>\
**Category:** World Creation\
**Tags:** particle-system, unreal-engine, Collision, fullscreen, UE4, question\
**Created:** [April 26, 2016, 10:54pm UTC](https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591 "2016-04-26T22:54:15Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![anonymous\_user\_c38dacc2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_c38dacc2](https://forums.unrealengine.com/u/anonymous_user_c38dacc2)\
**Post date:** [April 26, 2016, 10:54pm UTC](https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591/1 "2016-04-26T22:54:15Z")

</div>

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 particles always go straight through the container without any collision.

I have tested it a few times, and it always stops colliding when in fullscreen.

This even happens, when switching between views. They will be colliding fine windowed, though if I press F11 to go fullscreen they will stop colliding as soon as the views switch.

---------------Windowed---------------

 ![88517-working.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/3/6/436a6ae78ca3a92c0569761a1bf54b97a2d414ab.jpeg)

][2]

---------------Fullscreen---------------

 ![88518-broken.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/0/0/000c83e056166bfb463326580e30e93dcbd90ae5.jpeg)

---

<div class="post-metadata">

**Author:** ![anonymous\_user\_8736fc99](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_8736fc99](https://forums.unrealengine.com/u/anonymous_user_8736fc99)\
**Post date:** [September 13, 2018, 1:39am UTC](https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591/2 "2018-09-13T01:39:58Z")

</div>

I am running into the same thing right now. In the small window by blood splatter decals show up…full screen they don’t collide.

---

<div class="post-metadata">

**Author:** ![anonymous\_user\_8736fc99](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_8736fc99](https://forums.unrealengine.com/u/anonymous_user_8736fc99)\
**Post date:** [September 13, 2018, 2:03am UTC](https://forums.unrealengine.com/t/mesh-particles-not-colliding-when-in-fullscreen/355591/3 "2018-09-13T02:03:52Z")

</div>

I just found the temp fix. I am running an old laptop with a 650gt Nvidia. I had to go to the scalability settings and knock down my resolution. My shaders and decals were too expensive for my laptop to render. Now everything shows up just fine and collides. Gotta optimize now.