Description

It looks like static meshes can invalidate large numbers of VSM pages when the geometry and the light are not on light channel 0.

Steps to Reproduce

1. Download the licensee's test project and open. https://udn.unrealengine.com/s/contentdocument/0694z00000WgzJUAAZ
2. Observe the Directional light and meshes are all on Light Channel 1
3. Observe the flickering in the shadows
4. Turn on the Virtual Shadow Map Cached Page visualization. Observe the pages being invalidated

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-199180 in the post.

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Cannot Reproduce
ComponentUE - Graphics Features - Shadows
Affects Versions5.3
Target Fix5.4
Fix Commit31393444
Main Commit31393454
Release Commit31393554
CreatedOct 27, 2023
ResolvedFeb 12, 2024
UpdatedFeb 14, 2024