[EMSUSD-1845] 'Tear off copy..' Maya viewport function defaults to perspective view if looking through UFE camera

[csyshing]

Describe the bug

When looking through UFE camera, clicking 'Tear off copy..' in Maya would cause the newly viewport fallback to be default perspective camera.
This does not happen for native Maya camera, e.g. "persp1" (see attached GIF).

Steps to reproduce
Steps to reproduce the behavior:

1. Launch Maya
2. Create a USD proxy shape from any USD camera scene (see super simple example below):

#usda 1.0
(
    defaultPrim = "root"
    metersPerUnit = 0.01
    upAxis = "Y"
)

def Xform "root"
{
    def Camera "testCam"
    {
        float3 xformOp:rotateXYZ = (-41.738354, -18.2, 0)
        double3 xformOp:translate = (-1.7836315683895845, 5.094853768457956, 5.424946234822715)
        uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ"]
    }
}

3. Look through the UFE camera
4. Click the 'Tear off copy..' menu item
5. The newly created panel still shows the default perspective camera

Expected behavior
'Tear off copy..' works as expected for UFE camera.

Attachments

Specs (if applicable):

• OS & version CentOS 7.8
• Compiler & version gcc 6.3
• Maya version Maya-2023.3.3
• Maya USD commit SHA official v0.30.0
• Pixar USD commit SHA v22.05 & v24.03

[santosg87]

thank you for the report.

We have an internal issue logged for this, I added our internal ticket ID to this so they can be tracked together!