The room is composed of 17 boxes, one large in the middle and the rest spread around the walls.
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Inside the middle box.
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This object was created from a Torus Knot. I mixed the settings around and searched for something I liked.
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I placed a sphere in the middle and used extrude and bevel to achieve this effect.
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These are the materials I used. 4 omni lights was placed inside the box, spread around the sphere. I also rendered an ambient occlusion pass to improve the shadows.