When adding new HISM instances, actors using SpeedTree -> WorldPositionOffset material are reset.
4.19 Repro project provided by user. I was unable to get WPO wind working in 4.18, I did noticed there was a change in the SpeedTree Material node from 4.18 to 4.19 (Inputs are exposed)
4.19, CL 4033788
4.20 Preview 5, CL 4173640
4.21 (UE4/Main), CL 4179794
4.19 Repro project attached.
1. Setup an actor with speedtree WPO material (wind)
2. Place WindDirectionalSource actor in level
3. Create a BP to add instances of wind-affected actor to level at a fixed interval.
Result: WPO (driven by wind) is reset when a new instance is added.
Expected: Individual instances WPO data is not reset.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-61559 in the post.
| 2 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.19.2, 4.20, 4.21 |
| Created | Jul 6, 2018 |
|---|---|
| Resolved | Jul 12, 2018 |
| Updated | Jul 14, 2021 |