# Path Tracer Reference Depth of Field Breaking Metallic Meshes

**URL:** <https://forums.unrealengine.com/t/path-tracer-reference-depth-of-field-breaking-metallic-meshes/1254172>\
**Category:** Rendering\
**Tags:** Depth-Of-Field, metallic, metal, DOF, Path-Tracer, unreal-engine, Rendering, question, metahuman\
**Created:** [August 8, 2023, 3:35am UTC](https://forums.unrealengine.com/t/path-tracer-reference-depth-of-field-breaking-metallic-meshes/1254172 "2023-08-08T03:35:34Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![R42Brad](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@R42Brad](https://forums.unrealengine.com/u/R42Brad)\
**Post date:** [August 8, 2023, 3:35am UTC](https://forums.unrealengine.com/t/path-tracer-reference-depth-of-field-breaking-metallic-meshes/1254172/1 "2023-08-08T03:35:34Z")

</div>

Hello,  
Im trying to find a fix for metallic objects creating white noise using Path Tracer when Reference Depth of Field is Active.  
I need the Reference Depth of Field active to display grooms correctly on a heavily DOF’d background. Using the denoiser works to remove these but I also need the denoiser off  
to stop the image from becoming too blurred. Examples of the noise below.  
 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/0/3/c036233af04f731398b18671e3ccf1f14f985c09.jpeg)  
 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/4/8/448ab2b5289240bec9780929170df12a24635e14.jpeg)

---

<div class="post-metadata">

**Author:** ![StMarduk](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@StMarduk](https://forums.unrealengine.com/u/StMarduk)\
**Post date:** [January 4, 2024, 2:44am UTC](https://forums.unrealengine.com/t/path-tracer-reference-depth-of-field-breaking-metallic-meshes/1254172/2 "2024-01-04T02:44:30Z")

</div>

Same issue here.

---

<div class="post-metadata">

**Author:** ![ValkTuna](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ValkTuna](https://forums.unrealengine.com/u/ValkTuna)\
**Post date:** [April 5, 2024, 1:07am UTC](https://forums.unrealengine.com/t/path-tracer-reference-depth-of-field-breaking-metallic-meshes/1254172/3 "2024-04-05T01:07:54Z")

</div>

I’m encountering this issue heavily too, and am unable to pinpoint a cause or fix. Hoping someone else might have some input!