Some screenshots showing the creative use of slopes in 3D space. I have tried to replicate an object from Half-Life, with some variations to make the process simpler. Note: GZDooM does not support translucency in sloped 3D sectors, and so it is not possible to make the liquid in the ionization reactor translucent, nor to have sloped glass on top.
First, the original from Half-Life, then 3 pics from my mod, taken from different angles.
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