Developer Notes

User in the AnswerHub post noted he was able to use distance fields for collision as a work around, but not getting as nice of a result.


Whenever a particle system utilizing GPU sprites with collision is enveloped within a planar reflection bounding box, the collision stops working.

Steps to Reproduce
  1. Open attached project
  2. Drag a planar reflection actor into the level and make sure the particle system is enclosed within the bounding box

Particle sprites fall through floor

Particle sprites continue to collide with floor asset

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Affects Versions4.12.54.13
Target Fix4.15
Fix Commit3101462
Main Commit3109297
CreatedAug 23, 2016
ResolvedAug 25, 2016
UpdatedMay 2, 2018