[EMSUSD-24] USD Camera viewport refresh issue

[Josh Henare]

Describe the bug
While looking through a USD Camera it does not update when applying transforms to a parent prim

Steps to reproduce
Steps to reproduce the behavior:

rootlayer.usda

#usda 1.0
(
)

def Xform "group01"
{
    double3 xformOp:translate = (0, 0, 0)
    uniform token[] xformOpOrder = ["xformOp:translate"]

    def Camera "Camera01"
    {
    }
}

1. Load rootlayer.usda
2. Apply transforms to the parent prim group01
3. The viewport which is looking through the USD camera does not update
4. Scrub the timeline or toggle "Camera01" visibility
5. The viewport will update

Expected behavior
We would expect the camera viewport to update immediately after transforms are applied to the parent prim

Attachments

Specs (if applicable):

• CentOS 7.8
• gcc-6.3
• maya-223
• Maya USD commit SHA
• Pixar USD commit SHA

[George Santos]

thank you for reporting this issue!

we have this behavior logged on our backlog internally as EMSUSD-24. I will bring it to the team for discussion on priority.

cheers!