A while back, I made this model of a dome. This was before PBR textures were popular. This thing has very basic textures, and the overall geometry was very simple before subdivision..

If I had used PBR textures with this, I probably could have brought out a lot more details and realism. Think about if you want to incorporate any more details into the low poly base mesh without sculpting. You can go a long way with just basic shapes and polygon modeling these days, especially with PBR textures. Sculpting will always be more reaslistic and detailed, but again, you can expand on anything with addons or expansion packs too.

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