I have encountered the same issue in both versions 3.01 and 3.1.
Since the Custom Background feature was introduced, it has been very useful for product rendering. However, I found one issue.
As shown in Image 1 , when the Custom Background is not used, the surface appears smooth and sharp.
However, as shown in Image 2 , when the Custom Background is enabled, the edges become noticeably blurred.
Is there any setting that can be adjusted to prevent this or improve the edge sharpness?
Additionally, I noticed a difference in rendering sharpness between versions 3.01 and 3.1.
In the attached comparison, the 3.1 render was generated at a higher resolution , yet the text on the book appears blurrier than in the 3.01 render .
Could you please check whether this is an intended change or a rendering issue?



