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When I select the face and press "assign material", the material isn't assigned to the face but somehow to parts of it and parts outside of it...

How can I assign a material to this face? enter image description here

catlover2
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Omnitored
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  • Avoid triangles and n-gons, when subdivided they have this king of behavior. – Denis Aug 22 '15 at 20:34
  • you have a subsurf modifier which will change the topology – Chebhou Aug 22 '15 at 20:54
  • btw, this might not be an answer to your question, but I think you could make this spaceship look way cooler when you add an edge split modifier and mark some sharp edges with ctrl+e. – Jonathan Aug 22 '15 at 21:13
  • Man I understood NOTHING xD skype: Omnitored – Omnitored Aug 23 '15 at 06:41
  • So someone can help me? – Omnitored Aug 23 '15 at 18:36
  • The underlying topology is being changed by some modifiers (related: http://blender.stackexchange.com/q/2172/599). The area the material is assigned to is defined by the topology, so it's affected by the modifiers – gandalf3 Aug 24 '15 at 00:08

1 Answers1

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You are dealing with two issues: non-planar geometry and the interpolation generated by the subsurf modifier.

Let's start with the second.

The subsurf modifier is designed to make things rounder by subdividing the existing faces and make them smoother. If the faces are too big for the complex shapes you are trying to achieve, you'll see artifacts.

enter image description here

The solution is to edit your mesh with a bit more density so that the shapes are better described. Then the subsurf modifier will not be interpolating the surfaces and it's materials in such a drastic way.

enter image description here

Now, for an explanation of how to deal with non-planar geometry read this answer

Community
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  • Turned off subsurf, but then the ship looks all different. How do you make those double lines like on the gif. nr. 2? – Omnitored Aug 24 '15 at 04:21
  • using the loop cut tool http://blender.stackexchange.com/a/24419/1853 –  Aug 24 '15 at 10:56
  • NOOOOPE, almost everything works but ofcourse there is 1 bug.. http://prntscr.com/88comd Help me fix it? Tryed both ways – Omnitored Aug 24 '15 at 16:10
  • For different questions please make a new post. –  Aug 24 '15 at 19:53