# Using RVT for Grass Occlusion, How can I make it work please ? I use UE5.4.4 

**URL:** <https://forums.unrealengine.com/t/using-rvt-for-grass-occlusion-how-can-i-make-it-work-please-i-use-ue5-4-4/2124932>\
**Category:** World Creation\
**Tags:** unreal-engine, question\
**Created:** [November 15, 2024, 3:17pm UTC](https://forums.unrealengine.com/t/using-rvt-for-grass-occlusion-how-can-i-make-it-work-please-i-use-ue5-4-4/2124932 "2024-11-15T15:17:03Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Meyssanobu](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Meyssanobu](https://forums.unrealengine.com/u/Meyssanobu)\
**Post date:** [November 15, 2024, 3:17pm UTC](https://forums.unrealengine.com/t/using-rvt-for-grass-occlusion-how-can-i-make-it-work-please-i-use-ue5-4-4/2124932/1 "2024-11-15T15:17:03Z")

</div>

Hi Everyone,

I tried following this

> [@Hide landscape foliage/grass where an actor is placed?](https://forums.unrealengine.com/t/hide-landscape-foliage-grass-where-an-actor-is-placed/516217/4):
>
> Hey! Took me a bit to get back to this. I’m assuming you have the basics of RVT setup with this. If not let me know and I’ll add that setup as well. Plug this series of nodes up on your grass material. The scalar parameter will determine how much to apply the occlusion. Set your default mask to zero by putting this in your landscape. I’m using the roughness channel but any black and white masking channel will do. [Screenshot 2022-04-11 161429] Then you want t…

or this

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/6/2/1629438b3b9173a312330627c9d0e0ce1d7d8a1f.jpeg "Easy Grass Occlusion in UE4") ](https://www.youtube.com/watch?v=8bn8lCNMbI8)

But I can’t figure how to make Grass Occlusion using Runtime Virtual Texture work.

Here is my prop material :

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/f/a/dfa808141f964fe9ac62e9a388cac8ea7458d15c.png)

My Grass Material :

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/2/4/624ab17eb085e281635dc804afcd6e09822d34de.png)

and my landscape material:

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/c/b/dcb1fa7f4d946f87709977f7546ec65963ca7309.png)

I tried an RVT on just the color and with normal and roughness. The idea is to push down the grass when roughness is greater than 0. But grass still appear on my prop as we can see below even though the RVT roughness is set to 10 for my prop.

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/e/e/1ee3525330f1eefc5d05b8433a73f1df72fc6399.jpeg)

Could you please help me thanks