# Rendered image is not as smooth as in 3d preview

I'm a newb to blender so apologies if this is obvious. I modelled a simple cup and set the modifier subdivisions to 5 after I turned on 'smooth'. It renders fine in the CTRL+Z render preview window but when I do a final render the handle of the cup is blocky and not smooth.... Any ideas what I'm doing wrong?

Attached pics of the render with blocky handle and the object/render settings

Many thanks

• Toi have 5 subdivision levels for preview, but only two for rendering. Bring up the value so that you get more subdivision for rendering – user1853 Jan 23 '18 at 20:22
• Ahh yeah, I totally forgot! Thank you very much! – obloquy Jan 23 '18 at 20:26

The Subdivision surface modifier has two important parameters: the view and the render subdivisions. As their name suggests, view determines how smoothed out the surface will be when viewing it in the viewport, and render does the same for rendered images.
This is useful if you want a smoother object when rendering, but want a better performance of the viewport and don't need much detail when previewing – you can set a lower view and a higher render.
If you set the render parameter lower than the view parameter, objects will appear smoother in the viewport than in actual renders.