Mirror creating indentations

Support Modeling
1

Hi all,

I was just playing around and making a chair when I came across a problem- I added 100% mean crease everywhere I wanted as a straight edge, and it looked great. The subdivision surface didn’t affect the creases at all. However, when I set the shading from flat to smooth, indentations appeared down the middle. Is there a way to smooth the rounded parts of the chair without the indentation appearing?

Screen Shot 2015-01-03 at 4.35.04 PM.png612×504 32.3 KB


It looks like the smooth shading rounds all the edges of the chair, which is fine everywhere but the center. Is there a way to keep this rounding from happening?

Thanks,
Joseph

2

Do you have a face inside the mirrored mesh ?
Have you enabled Merge in the mirror modifier and set an appropriate threshold
Where is your blend file ?