A stretched/custom cube object not generating correct UV map

[ravigabri]

Hello Dimensions experts,

I'm trying to create a simple box packaging, I pick the cube shape and assign it my custom width, height, length etc. Easy enough. I go on to convert the shape into a standard model so I can generate and export the UV so that I can apply my packaging design to it. However, upon opening up the UV psd file, I notice it's the UV of a cube and not the custom size I applied. I've tried this several times, even clicking on generate UV before Export UV and it 's always the same, the resulting psd shows a cube layout, not a box with different proportions/sizes.

The funny thing is I've done this months before and the resulting UVs have been perfect, exactly as the custom cube/box size I created. In fact if I open my older files and export the custom box shape, it gives me a perfect UV. What I'm having an issue with is any new box shape I create is always giving me a square cube UV.

I'm not sure what I'm doing wrong or wether it's a big with the updated version etc. Please help!

[Ussnorway]

if you adjust the size of faces in a cube its still going to be cube shaped so i'm not sure if i understand the issue

[ravigabri]

I'm sorry, I meant I start off with the cube shape and elongate/stretch it to a long or tall box so that it no longer looks like a perfect cube i.e. it now has different width, height and length proportions. When I try and generate a UV, the resulting UV image in photoshop resembles a perfect cube, not the new shaped box.

[ravigabri]

Here's my shape, a stretched cube.

[ravigabri]

... and here's the resulting UV which shows a cube, not the stretched/new measurements I assigned.

[Ussnorway]

1st i'd try a different model

if that doesn't give you a Uv you can live with then I'd use the magic wand to give each face a different material {makes them all have their own Uv map} and place a decal on each face before exporting so its clear which face is which

final option is to go make the box in Blender which gives you full control over the Uv mapping

[ravigabri · Accepted solution]

Thanks Ussnorway, I figured out what I was doing wrong.

I've been putting in the dimensions of the cube/box I want in the wrong area (highlighted red).

I should have expanded the "cube" section and put in my measurements here (highlighted green)
I'm now able to generate the correct sized and proportion UV Maps.

I also learnt that stretching/scaling a cube manually will also give you an incorrect sized/proportioned UV (it will give you the original cube layout).

Thank you anyway for taking the time to help me, much appreciated!