Jagged edges with simple render I have used a basic template for rendering simple shapes against a blank background.
Load generic blender project, insert shape, change from eevee to cycles, GPU rendered.... no changes to anything else.
When I rendered any shape before the edges came up clean and smooth.... now upon doing the same setup they are extremely jagged, no smooth edges ever now, now matter what shape I insert.
See the image attached for a simple shape, rendered with jagged edges - no changes are made to teh general blender project setup apart from changing to cycles with GPU
Thanks - just confused why from one project set up like this, it was fine, and now all are jagged.
Thank you for your .blend-File. That helped a lot.
The problem is the lighting.
If you change your lighting settings to this:

you get this: (and yes, i added the blue cube to check, what's going on ;)