Decal when added applies to all sides of the 3d model

[Austin1]

i have a rectangle 3d model with rounded edges and i have applied the texture i want for the rectangle, then when i proceed to add a 2d image as a decal to the 3d model it doesnt just apply once instance of the decal it applies the decal to all sides of the rectangle. i only need one instance of the label to wrap around the top and the side of the 3d object. what am i doing wrong?

[Ussnorway]

option 1 = try a better model

option 2 = rendor | save as psd - open the psd in Photoshop and edit out the extra decal

[Austin1]

tryed a different model, even some from the Dimensions app does this, i even exported a simple square and still does the same thing

[JeanetteMathews · Accepted solution]

This can happen when the object has 'shared UVs'.  UVs are the coordinate system that tells the software what part of the 2D image goes onto what part of the 3D model.  Essentially the 3D model is unwrapped and laid flat in image space.  If, during that unwrapping process, the UVs overlap, then any image placed onto one part of the model will show on the overlapping parts.  If this is a custom 3D model you can adjust by editing your UVs.