When I am stuck inside a glass block in survival or creative mode, the camera is blacked out, the same way as if I was stuck in stone or any other opaque black, in spectator mode, the texture is also transparent from the inside (as with every block in spectator mode).

Desired behavior would be, that you can still see through, never-mind if the block is a full block, as long as it is (mostly) transparent in texture, when you are in it in creative or survival.

You want to have a nice look out while you slowly suffocate .