Strange shading on curved surface
23123
Smooth shaded model has odd shading
19808
Black shadows on Faces, not a normals thing
77702
Shadow Incorrect at Bottom of Edge
119280
What causes odd deformations when using Subsurf?
57899
How to fix the weird surface in fluid object
100602
Black reflections at extreme angles with glossy shader on smooth surfaces
73637
Subdivision surface problem
48898
Weird artifacts in my UV mapped texture
5303
isolated non-normal surface singularity
125051
Subdivision Surface on curved mesh
7426
Strange grey bordering/outline in Illustrator
20000
Shading between polar graphs
134778
Using python to set object shading to 'smooth'
153566
Why subdivided faces with smooth shading acting weird?
7897
How do I create a cel-shaded cartoon look?
32097
Distorted mesh when I use a bevel object on Nurbs curve vs. Bezier curve
39118
Weird sharp vertices with subdivision modifier