Weird export noise after appending object I have a planet created in one blender file [A], which I am appending to another blender file [B]. The planet in file A renders beautifuly, while in file B, the render is noisy. 

I have checked and can confirm that all Render, Output and View Layer options are set the same in both files. Besides the planet itself, the cameras and lights were also appended, so these should be the same as well. 

I am using blender 2.8 &amp; Cycles with both the files, rendering both on GPU. Could anyone give me any hints on what could be causing the difference?



Source files
The reason for the noise are the other lights and objects in the scene that are placed inside the planet. That's probably not where they are supposed to be because they can't be seen, but they have impact on the rendering and cause more noise. If you move them to another scene or exclude them from rendering it will look just like before. If they are supposed to be placed there and remain visible, you will need to increase the render sample to reduce the noise or you could enable denoising in the view layer.

Disable rendering for problematic objects.



Problematic objects


Before


After