Explain Camera2dBundle.projection needs to be set carefully

[stepancheg]

Encountered it while implementing #11109.

[matiqo15]

What if we add this comment to OrthographicProjection? I would likely look there if I encountered any issue with this.

[stepancheg]

@matiqo15 I added comment in OrthographicProjection initially, but then decided it is more appropriate on Camera2dBundle, because OrthographicProjection can be used not only with 2D camera.

[matiqo15]

Makes sense, but I still think we should at least mention it in OrthographicProjection so that we can point users in the right direction. Would like to get someone else's opinion on this.

[atlv24]

Is there any chance we could instead change the culling behavior to cull stuff strictly behind the near plane and not also things on the near plane?

[stepancheg]

@rodolphito I suspect that might be

• fragile to minor changes the project
• may result in visual artefacts due to float rounding

But I don't really know.

[TrialDragon]

I believe this needs to have main merged in; it's try to run CI checks that aren't available it seems.