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enter image description here

I have been trying to unwrap this simple cylinder but it keeps unwrapping like this...

I have applied the scale and rotation, even location and it didn't work. I also tried erasing the applied memory and trying again but it still didn't work.

Conformal method doesn't work either.

I am completely stumped. No idea what's causing this :/ Any help is appreciated!

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  • $\begingroup$ If you add another seem along the top circle and one of the vertical edges, it will give you a clean projection. Depending on your case, cube projection or smart project might work as well. $\endgroup$ – Dimali Apr 15 '17 at 21:15
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The generated layout is representative of the seams you marked on the mesh.

Since you only have one seam ring around the lower cap of the cylinder, Blender generates one UV islands from the lower cap and another from the rest of the mesh, which is the cylinders main part (or perimeter), and the upper cap - together in one island.

I normally prefer to mark both caps and then to add another seam on one of the vertical edges of the perimeter, so that the layout of the perimeter will be in the shape of a(n easily textured) rectangle, rather than a circle:

enter image description here

To reproduce this mark the seems as seen in the image (in Edit Mode --> Edge Selection Mode, select seam edges and mark seams via AltE --> Mark Seam.

Then select all edges (A), then UV unrwap via U --> Unrwap.

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