Mesh distortion upon render

In blender i went about creating a simple knife. All was going well until i rendered it and the mesh seems to me as it looks as if someone had repeatedlyeaten parts of the blade. There are no modifiers applied to it so then only thing i could think of as being the problem is the topology of the knife itself.

Also i am sort of new to blender.

IMG Links:

EditMode:

Rendered:

Blender can only render triangles. Therefore if you don’t have triangles it will triangulate the mesh a]for you at render time. If you have quads this generally does not give a problem. However, look at your mesh, for some reason you are using huge ngons (faces with > 4 edges). You are therefore giving control of your mesh to some computer algorithm that does not have care about the quality of the end result. If the ngon is planar you may get away with it.

You didn’t supply a link to your blend file so you’ll have to fix it yourself

You need to do something like this:


Basically just turn that giant Ngon into quads so blender knows where you want the triangles when it renders.