Two strange interaction behavior

[zhouccccc]

@danielbarion @lunarraid
I found another two strange interaction behavior. the latest code has been updated at here
https://codesandbox.io/p/sandbox/cm8z9t

you can reproduce them with next two points:
#1 After init --> drage the scene. you'll find that the entire scene doesn't follow the mouse cursor perfectly, and the movement path may even deviate

#2 After init --> zoom out the scene --> drage the scene. you'll find the bunny sprite suddenly flying off-view.

[lunarraid]

@zhouccccc You're rendering the viewport directly, which isn't how it's really intended to be used. The app stage isn't designed to be transformed. If you instantiate a PixiJS app normally and use the stage, do you see the same behavior?

[zhouccccc]

@zhouccccc You're rendering the viewport directly, which isn't how it's really intended to be used. The app stage isn't designed to be transformed. If you instantiate a PixiJS app normally and use the stage, do you see the same behavior?

If instantiate a PixiJS app and use the stage, it works as normal.
but I think it may be necessary to implement this feature for rendering the viewport directly ^_^

[lunarraid]

PixiJS itself gets weird when you start messing with Stage transforms, so I think something would have to change there and not in this library.

[zhouccccc]

PixiJS itself gets weird when you start messing with Stage transforms, so I think something would have to change there and not in this library.

This issue occurred when I upgraded to the latest version (v6). I didn't have this problem using v5. I suspect some updates in the new version make this issue happen