TranslucencyVolume spheres are not correctly shadowed nor lit in Unreal 5.5 with VSMs disabled. Unreal 5.4 does correctly shade the sphere without VSMs.
There appears to be differences in the output of the FilterTransluencyVolume, but this may be the result of the issue rather than a cause.
1. Create a blank 5.5 project
2. Create a translucent material using TranslucencyVolume
3. Add a sphere to the level with this material
4. Add a shadow caster above the sphere and position the sky atmosphere light such that it shadows the sphere
5. Disable VSMs with r.Shadow.Virtual.Enable 0
Expected: Shadowing is similar to 5.4 and 5.5 with VSMs
Result: The sphere is shaded from the perspective of the directional light, ignoring the shadow caster. Additionally, any extra lights do not correctly shade the sphere. A rect light was used to test the additional note.
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-235284 in the post.
| 0 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 5.5 |
| Created | Dec 20, 2024 |
|---|---|
| Updated | Dec 20, 2024 |