I used “HtmlMesh” of babylon extensions.
When I set it up this scene.useRightHandedSystem = true, it is expressed as follows. Is there a separate setting method for RightHandedSystem?
cc @ericwood73 who pushed the extension 
HtmlMesh doesn’t support right handed yet. All of the transforms to CSS, which is right handed assume the values from BJS are left handed. It’s going to be a while before i can implement that, but you are welcome to take a stab and submit a PR.
2 Likes