Expose debug rendering functionality

[mvaligursky]

expose functionality from this engine PR
playcanvas/engine#5261

@jiajasper for UX design.

[kpal81xd]

So i was initially thinking of something like this where you would add a property to the camera component as an alternative for adding a new menu in the launcher or viewport since that requires an additional select menu to manage each cameras shader pass

[mvaligursky]

I think we care about rendering inside the Editor's viewport only, using Editor's camera. We do not need to handle camera's in the launcher / game, as those are owned by the user, and they can implement debug rendering themselves if they need to.

And so I think maybe we need a drop down on top of the 3d view in the Editor, perhaps directly left of the Perspective dropdown?

[Maksims]

I think we care about rendering inside the Editor's viewport only, using Editor's camera. We do not need to handle camera's in the launcher / game, as those are owned by the user, and they can implement debug rendering themselves if they need to.

And so I think maybe we need a drop down on top of the 3d view in the Editor, perhaps directly left of the Perspective dropdown?

It can be as an icon with a drop-down just like perspective drop down would be amazing!

[kpal81xd]

Sounds ill get started on a PR for that!

[willeastcott]

The question is....what icon would it be? 🤔

[mvaligursky]

I just realised. If we have the Editor camera selected, this will be only visible in the Editor. But if in the Editor you select a game camera to be active, this will be reflected in the launcher as well! That'd be so awesome.