Clouds appear to have motion blur on them in rendered image

[thompjo16]

I am new to creating sky textures with Terragen.  I have noticed that within my renders the clouds in the upper portion of the skies tend to have motion blur and I have not been able to find any topics on how to remove or address this issue.  I have tried disabling motion blur under the Renderers tab, but cannot seem to remove it.  Any ideas? 

[Kevin Kipper]

It's hard to tell without looking at a project file.  Can you share the project, or tell us what type of cloud layer is having the problem?  For example, if the cloud layer is a "Cloud layer v2" or "Cloud layer v3" this could be coming from the Density Fractal node assigned to cloud layer's Density shader.  Under the Density Fractal node's Warping tab try reducing the Lead-in Warp Amount.  The default value is 0.5 and when it's higher it tends to warp the fractal pattern towards a "swirling" shapes.

If you've disabled motion blur, it's definitely not a motion blur issue.

[Dune]

It looks like this is a 360º render, and in that case upper central clouds are always pulled to the center. If you see this in an appropriate viewer, you'll probably see that they look quite 'normal'.

[thompjo16]

Thanks Kevin. Reducing the Lead-in Warp Amount, seems to have cleaned up most of what I am seeing.

And yes Dune, I am creating 360 renders for use in UE5.  So I expect stretching along the upper portions.