Should unwarp work on the basic cube?

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1

I am doing some low poly modelling. And unwrap those to do some texturing. But I always need to smart project, otherwise it doesn’t work. But, I figured, the default UV Unwrap should work on the default cub right?

It doesn’t. And I can’t figure out why, googling doesn’t help much cause I don’t know the right terminology.

I do Ctrl-N, new scene.
I select the cube.
Go to edit mode.
Unwrap.

Get an error; Unwrap failed to solve 1 of 1 island(s), edge seams may need to be added

Like so; https://www.youtube.com/watch?v=UzxmEX58hmg

Is it me, or is this as expected?

2

The “Unwrap” operator only works if you have seams. The default cube has no seams, so it can’t unwrap without an algorithm such as cube project, smart project, or lightmap pack :slight_smile: This is as expected- Unwrap separates islands by seams, and the algorithmic unwrappers create islands without seams, using various methods

2 Likes
3

Thanks. I was wondering if missed something like that.

1 Like
4

Maybe, check this out.

https://docs.blender.org/manual/en/3.1/modeling/meshes/uv/unwrapping/introduction.html#getting-started

5

I am confused…

I clicked this link https://docs.blender.org/manual/en/3.1/modeling/meshes/uv/unwrapping/introduction.html#getting-started

It says “By default, meshes are not created with UVs.”

So, in 2.93, I added a cube. The “Generate UVs” checkmark was “on”. I added an image texture material and viewed the UV editor and the edit mode in 3D view.

It appears that meshes are created with UVs.

confused
confused698×386 40.6 KB

.
Am I wrong?

Cal

6

Looks like an oversight, probably should somehow mention that it isn’t made with seams.