# SSR Quality Regression **URL:** \ **Category:** Rendering\ **Tags:** SSR, artifacts, unreal-engine, question\ **Created:** [August 22, 2016, 6:13pm UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931 "2016-08-22T18:13:34Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![dgrieshofer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@dgrieshofer](https://forums.unrealengine.com/u/dgrieshofer)\ **Post date:** [August 22, 2016, 6:13pm UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931/1 "2016-08-22T18:13:34Z")
Reproduce: - Add huge flat plane with Roughness of 0 to level - Enable SSR - Notice huge artifacts near skyline (shallow angle) ---
**Author:** ![anonymous\_user\_0c62419a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_0c62419a](https://forums.unrealengine.com/u/anonymous_user_0c62419a)\ **Post date:** [August 23, 2016, 5:17pm UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931/2 "2016-08-23T17:17:56Z")
Hi dgrieshofer, I tested this issue using the steps provided in a blank project with starter content. All I have is a plane with material roughness at 0 and some chairs on top to see the reflection. I didn’t get the dark artifact like in your screenshot though. (see screenshot) ![104052-ssr.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/3/5/f350ab86d20cc44495456fb39adf08a400dd6f4f.jpeg) Can you reproduce this issue with minimal assets? This could possibly be an issue with the material used. Thank you for your time, ---
**Author:** ![dgrieshofer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@dgrieshofer](https://forums.unrealengine.com/u/dgrieshofer)\ **Post date:** [August 23, 2016, 8:09pm UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931/3 "2016-08-23T20:09:02Z")
Hi Ed, I am also able to reproduce this with a very simple material as can be seen in the following screenshot: ![104073-untitled.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/8/0/880f546b38d7b86a08c4234eca4fbfe4c52affac.jpeg) You need to place the camera very close to the plane and look up. It might help to place objects in the distance (~50000uu away) and make the plane even bigger to be able to see it easier. Also happens with other angles/distances but this is the easiest to reproduce. ---
**Author:** ![anonymous\_user\_0c62419a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_0c62419a](https://forums.unrealengine.com/u/anonymous_user_0c62419a)\ **Post date:** [August 23, 2016, 9:24pm UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931/4 "2016-08-23T21:24:11Z")
Thank you for the clarification! This helped a lot since the test asset I used was too small to get the dark artifact to appear. I appreciate your willingness to assist in this investigation. I have logged a bug report on this issue and it has been labeled as a regression. You can view it here: [Unreal Engine Issues and Bug Tracker (UE-35128)](https://issues.unrealengine.com/issue/UE-35128) I’ll also attach the same screenshot attached to the bug report since you can’t view it there. ![104067-ssr_screenshot.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/0/9/e099a8febd38d969a6d739f2daf7213b0b3bde5e.jpeg) again ---
**Author:** ![dgrieshofer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@dgrieshofer](https://forums.unrealengine.com/u/dgrieshofer)\ **Post date:** [August 23, 2016, 10:42pm UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931/5 "2016-08-23T22:42:41Z")
, for the record since I have seen that there were some recent SSR optimizations which might have caused this issue and you could argue that SSR is not made for large flat planes I would like to mention that the artifacts only depend on the view angle. It also happens for example on the side of a 1000x1000x1000 flat cube when the camera is placed almost parallel to the side of the cube (so that you can still see it) and being rotated away slightly. ---
**Author:** ![dysn\_edits](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@dysn\_edits](https://forums.unrealengine.com/u/dysn_edits)\ **Post date:** [July 10, 2020, 3:14am UTC](https://forums.unrealengine.com/t/ssr-quality-regression/367931/6 "2020-07-10T03:14:48Z")
Hey, i think im having the same problem as this. object appear black in the reflections and i get lots of “dots” on the edges of the object in the reflection. Any fix yet? (Im using custom build of UE4 4.17 VXGI)