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When ray tracing is turned on in ue4.26, the dynamic effect of wind of foliage will greatly affect the UE performance,and the foliage has double mesh and the shadow is wried:
In UE landscep scene, when there are a lot of wind blowing grass, if you turn on ray tracing, the performance will be greatly reduced. I’ve tried many ways to turn off the ray tracing effect, but it’s still useless. I have to use Ue4.26’s gpulightmass bakes the light, so the Ray tracing must be turned on in the project. There is no way to turn it off, so you have to manually enter the command in CMD,like **r.raytracing.ForceAllRayTracingEffects 0.Or turn of **Vegetation’s wind dynamic effect.If someone know the resolution ,please tell us.thanks.