Objects with billboardMode facing away from camera in RHS

Bugs
1

Hi,
in 8.10.1 the behaviour of billboardMode in RHS has changed - such objects are now facing away from the camera, which makes them invisible by default. Was this change intentional?

Below is PG example with HtmlMesh and a plane:

PG with 8.10.0

PG with 8.10.1

Thanks

1 Like
2

Downgrade to version 8.10.0 until this bug is fixed in the next patch release. This is clearly a regression since it worked correctly in 8.10.0 and the behavior change makes billboarded objects invisible by default in RHS, which breaks expected functionality.

The Babylon.js team will likely address this quickly once they see the bug report, as it affects core billboard functionality in right-handed systems.

3

@yedpodtrzitko Yeah, there was a breaking change with associated meme.

4

Thanks. I’m aware of that change, but should it affect the billboard mode objects this way? I guess it’s technically setting the rotation (hence it will be rotated by 180°), but the object is not facing the camera as the documentation says it will be.

5

cc @bghgary

7

I agree this does seem like it is broken. I will investigate tomorrow.

1 Like
8

Sorry for the delay. I will look at this today.

1 Like
9

I’ve investigated this. Our conventions in RH mode are inconsistent. It seems cameras flip on Z and meshes flip on X which causes a bunch of nuanced issues. I will discuss with @Deltakosh next week and decide what to do.