The Shadow Problem of Nanite Mesh Using WPO Materials

[Anonymous_33fa8cc5ffe4885a94ac8481b4179e36 (Qiu)]

The following are the effects of the two solutions I have tried
Option A: Use nanite mesh+lumen+hardware light tracing
As shown in the figure : The shadow calculated by hardware light tracing is based on Nanite fallback mesh

Option B: Use nanite mesh+lumen+distance field of mesh
As shown in the figure: The red box shows the shadow before the wpo of some triangular faces, while the blue box shows the shadow after the wpo of some triangular faces

I want the shadow to match the mesh after the WPO, so I hope everyone can help me. Thanks

[ZacD]

If you’re using VSM, you need the bounds of the static mesh to extend to contain anywhere the mesh can move to using WPO

[Anonymous_33fa8cc5ffe4885a94ac8481b4179e36 (Qiu)]

Yes, I used VSM, and I also expanded the bound of the static mesh, but the problem did not disappear. Below is my VSM cache page and bound