# How can a mesh be detected by shooting from Line Trace and hitting a WPO material? **URL:** \ **Category:** Programming & Scripting\ **Tags:** line-trace, world-position-offse, hit-result, Pivot-Painter, unreal-engine, hit-event, question, Blueprint\ **Created:** [March 31, 2024, 2:27pm UTC](https://forums.unrealengine.com/t/how-can-a-mesh-be-detected-by-shooting-from-line-trace-and-hitting-a-wpo-material/1780393 "2024-03-31T14:27:32Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![diModrone](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/dimodrone/32/885731_2.png) [@diModrone](https://forums.unrealengine.com/u/diModrone)\ **Post date:** [March 31, 2024, 9:52pm UTC](https://forums.unrealengine.com/t/how-can-a-mesh-be-detected-by-shooting-from-line-trace-and-hitting-a-wpo-material/1780393/3 "2024-03-31T21:52:41Z")
You answered very completely(!) and quickly. Thank you!! I was also sure that this was impossible now, but I had hope when I first saw how Niagara particles could stack with WPO. I couldn’t believe my eyes. Initially, I dreamed (and still believe) of finding a way to get collision data. Please see my previous question - [LINK](https://forums.unrealengine.com/t/how-to-get-niagara-particle-hit-data-for-a-mesh-with-wpo-pivotpainter-material/1779583). Nobody answers me, you would really help me… (this is the half brother of this question) --- _[View the full topic](https://forums.unrealengine.com/t/how-can-a-mesh-be-detected-by-shooting-from-line-trace-and-hitting-a-wpo-material/1780393)._