# Why does foliage wind effect appear weird when raytracing translucency is turned on? **URL:** \ **Category:** Rendering\ **Tags:** translucent, unreal-engine, question\ **Created:** [November 6, 2020, 1:44pm UTC](https://forums.unrealengine.com/t/why-does-foliage-wind-effect-appear-weird-when-raytracing-translucency-is-turned-on/474094 "2020-11-06T13:44:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![VigneshGamer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@VigneshGamer](https://forums.unrealengine.com/u/VigneshGamer)\ **Post date:** [November 6, 2020, 1:44pm UTC](https://forums.unrealengine.com/t/why-does-foliage-wind-effect-appear-weird-when-raytracing-translucency-is-turned-on/474094/1 "2020-11-06T13:44:45Z")
![321293-rt-translucency.gif](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/5/a/f5aea0e63955ed1a491709978d6d7127b771454d.gif) Whenever i turn on Raytracing translucency, the wind effect in foliage starts to appear in doubles like in this gif. And when i turn on “EVALUATE WORLD POSITION OFFSET” it gets normal. But that option is not available for Painted foliage actors. But i need Raytracing Translucency because i am doing an exterior project in which the building has large windows with glasses. I have also noticed some problems with particle systems when raytracing is turned on. It would be great if i could get a solution for this. Please help. THANK YOU. ---
**Author:** ![u.mirage](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@u.mirage](https://forums.unrealengine.com/u/u.mirage)\ **Post date:** [November 9, 2020, 10:46am UTC](https://forums.unrealengine.com/t/why-does-foliage-wind-effect-appear-weird-when-raytracing-translucency-is-turned-on/474094/2 "2020-11-09T10:46:27Z")
Try foliage actor to painting foliage it works great. For grass you need use foliage procedural volume.