A few assets created for the game "Titanic: Honor & Glory", modeled and rendered in Blender 3D Cycles, textures are temporary for showcasing purposes. Existing, but not included in this editorial, are portholes of sizes 12 and 14 inch, they are visually identical to the regular portholes showcased here.
Each piece was modeled individually, this is because portholes are not simply scaled up and down according to the desired size but are designed to keep common elements, such as the hinges, latches and bolts, the same dimensions. Any change that they might be subject to is potentially only minimal.