The R channel of UV1 is not a problem.
1. use the UV1 G channel in the material.
2. use it in Niagara or Cascade Sprite.
There is a sample in the attached project.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-156851 in the post.
| 1 |
| Component | UE - Niagara |
|---|---|
| Affects Versions | 5.0, 5.0.2 |
| Target Fix | 5.4 |
| Created | Jun 16, 2022 |
|---|---|
| Resolved | Oct 24, 2023 |
| Updated | Nov 2, 2023 |