Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Blender Stack Exchange is a question and answer site for people who use Blender to create 3D graphics, animations, or games. It only takes a minute to sign up.
When final rendering add reflection on materials. But I don't know how to delete. I'd like to delete reflection on materials.
In Princepled node set Specular to 0
You most likely have lights in the scene that are hidden in the viewport. Go to the outliner, enable the render visibillity buttons by opening the filter menu in the top right and check if any of the disabled lights are enabled in the render.
Required, but never shown