1
$\begingroup$

Any ideas what's causing those chunks of geometric artifacts? Argh.enter image description here

$\endgroup$
  • $\begingroup$ These may be overlapping faces of the model and so something like Z-fighting; or overlapping faces of the UV map. Try to W > Remove Doubles on the mesh and UVs > Pack Islands on UV map. $\endgroup$ – Mr Zak Nov 6 '15 at 0:47
  • $\begingroup$ Would help if we could look at the .blend $\endgroup$ – Mentalist Nov 6 '15 at 15:07
  • $\begingroup$ Thank you. The blend file is here: aworkofmarc.com/1/New_Barrel.blend $\endgroup$ – Marc Nov 6 '15 at 15:32
  • $\begingroup$ Related - blender.stackexchange.com/questions/5441/… $\endgroup$ – Mr Zak Nov 9 '15 at 16:36
4
$\begingroup$

Remove doubles in the mesh

What happens in your mesh now is Z-fighting. Notice the clipping while rotating view around the barrel:

enter image description here

While in Edit mode select all and press W > Remove Doubles. It will delete ~800 double vertices.

After that you can split normals either by adding Edge Split modifier or activating Auto Smooth in Object Data tab.

Also see:


Overlapping faces:

Cause of black artifacts in render?

Overlapping faces in mirror modifier causing z-fighting


Edge Split modifier vs. Auto Smooth:

How to smooth shade an object while retaining hard edges?

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.