Why do glossy materials on my object look different to the material preview? So I have Imported multiple materials from different websites and tried on all of them. It never worked. If I add the Material it looks normal in the preview window:



But if I render the object I have with the material added to it it looks weird and wrong.



I've tried multiple different materials. Chrome, Gold and Glass. All of them have the same weird look after rendering. I have the feeling it is just a little option I have to de-enable or something. Can someone help me? What are your thoughts on it?
Your mesh has flat faces and the preview is a sphere. The reflections look like a gradient on the sphere because of its curved surface. I am sure if you changed the shape in the preview to a cube it would look similar to how your mesh looks. Maybe you should add a bevel to your mesh to give it a more complex reflection.