Disappearing Glass issue. Sorting or mesh problem, not sure

[Mike_Kennedy]

Not sure if this is a model issue or a sorting issue

ADI_Valera

The I have transparent glass railings and they sit over windows, the glass completely disappears around the front of the building and shows when you go around the back.
This same material setup worked fine in another project and this setup works fine in the editor, but when I launch or do a build, it starts getting messed up

[Hrishi_A]

Have a similar problem… I have two planes a shadow plane with alpha map on top of a ground map with alpha. At certain angles an area of the ground map covered by the shadow map geometry disappears. This does not occur if there is no opacity value in the shadow map material.

[Leonidas]

This happens because these entities are thin and packed together, so the engine can’t do alpha blending / sorting properly at extreme angles.

Check this for possible solutions:

Objects dissappearing

It is alpha sorting problem you have here. Alpha blended entities will be sorted based on Z distance of their AABB to camera. It is not reliable way to sort, as it does not takes complexity of geometry in account. But alpha sorting is generally tough question out there. So one way is to give developer a control over it, and there is few ways. For example with blue circles you simply want to disable depth test all together. So they always drawn on top of everything else. With different parts,…

[vaios]

You can also use layers to specify an exact rendering order:

https://developer.playcanvas.com/en/user-manual/graphics/layers/