DelphiTools – The question has (predictably) popped up several times now, so here is a recapitulative post with workaround. FireMonkey (as of now) doesn’t support rendering semi-transparent objects in 3D. FireMonkey only supports blending of semi-transparent objects (either through the Opacity property or because of their texture, for instance a semi-transparent PNG image), but blending alone is not enough to get it right in 3D with a Z-Buffer (which is what FMX, and most 3D apps are using). For a technical explanation, you can read about Transparency sorting, the article is about OpenGL, but applies ...
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