Steps to Reproduce

There are two issues on mobile of CSM receiver culling causing shadow receiver to be cull unexpectedly.

There is a video showing this issue in the following UDN thread.


First one is the ReceiverMatrix's FarDistance too short to reach the receiver mesh. The code is at below


  [Image Removed]

  [Image Removed]


The Second one is the Shadow ReceiverFrustum and CasterFrustm are coming from the largest split CSM ProjectedShadowInfo.  If there are 2 or 3 cascade shadow, the mesh in the small split CSM ProjectedShadowInfo may be culled by the largest split CSM ProjectedShadowInfo.



  [Link Removed]


Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-73390 in the post.

Login to Vote

ComponentUE - Platform - Mobile
Affects Versions4.21.2
Target Fix4.26
Fix Commit13661344
Main Commit14261872
CreatedApr 27, 2019
ResolvedJun 12, 2020
UpdatedSep 4, 2020
View Jira Issue