Weird Artifacting on Globe in Sample Project

I am fairly new to this plugin and just started playing around with it. When zooming all the way out and moving the globe over in the sample project I am getting a number of weird visual artifacts. Is there an easy way to fix this?


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I’m also noticing the same issue when setting up a project using the Cesium Ion data. I tried other imagery sources and even without imagery and the issue still persists. Also looking for a fix or setting to hopefully resolve the issue.

Hi @Evan_Putnam, @shadowedice,

I believe this is caused by the shape of the atmosphere compared to the shape of the terrain. We’re working on a fix for this (Automatically adjust SunSky atmosphere radius by camera height. · Issue #282 · CesiumGS/cesium-unreal · GitHub), but in the meantime you can adjust the atmosphere radius if your project involves the user viewing the earth from space. To do so, click on CesiumSunSky, and select the SkyAtmosphere component in the Details Panel. Try adjusting the Atmosphere Radius from 6360 to 6400. Depending on your project, you may need to set it even higher.

Note that this could alter the way the atmosphere appears on the ground, especially if you’re far away from the Georeference Origin. If you’ll be moving between earth and space while in play, you might want to adjust the ground radius appropriately each time you move in or out.

Let me know if this helps,

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Thanks for the response @agallegos. Changing the Atmosphere Radius removed the issue I was seeing. I did also notice, like you mentioned, that moving far from the Georeference Origin and being close to the globe causes issues with the SkyAtmosphere component. I’ll try your suggestion to edit the radius if the fix isn’t implemented before I need it.

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