Flat shape inside 3D shape

p.s, here are some more ruff examples

I've tried to show how the opacity map can make a label look like its on the glass itself but most of the time people just want something that looks like paper and there are other ways to do it... this is just the way I like

yes adding a 'fill' takes a bit of skill, thats a big label for such a small bottle so the actual image needs to be resized width wise to fit the shape you want... its hard to explain but can you share the files?

the other option, is to take the label from the bottle template and use that to put your label on

image shows that it is set to "decal"... change the type to "fill" and you will get the option to repeat

so to be clear, decal is the default but doesn't work on extrusions

well thats progress so now we just need to fix your label

option 1 = show me a screen shot of your label settings... is the repeat X & Y set to a number other than 1?

option 2 go back to the notes and see the template... that comes with a label and you clearly know how to cut up models so use that label on your bottle. the advantage is that is not a extrusion so the decal system will work well and you don't need to use a fill

here are my notes on making bottles in Photoshop for use in Dimension

https://community.adobe.com/t5/dimension/how-to-make-a-good-bottle-in-photoshop-for-dimension-my-way/m-p/10759234#M2556

I use Windows which is a little easyer than Mac to get a good rendor... for Apple Macs I move all the slidders down [not just opacity] and I do a rendor without spotlights before export

I used my work laptop to make you some example files

download them and have a look at the Photoshop rendor first, then you can open the Dn file, add your bottle, copy the material from my bottle onto yours and do a test rendor

to be clear, its not about Windows being better than Mac but they are different and this allows us a baseline set of files for fine tunning

I see you are a Mac user so there are two possible causes;

A the metal drivers got kicked out the door busted which can cause major issues with transparent rendors

or

B the way you make your models in Photoshop needs some fine tunning