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A '''3D display''' is a theoretical type of display that can show a completely natural 3D scene. It does this by using focal cues. Solidity can be generated using [[holographic display]]s and [[light field display]]s. 3D displays work by showing different focal depths at the same time. The term can also refer to a [[multiple viewpoint display]].

A '''3D display''' is a theoretical type of display that can show a completely natural 3D scene. It does this by using focal cues. 3D displays work by showing different focal depths at the same time. Solidity can be generated using [[holographic display]]s and [[light field display]]s.

3D displays connected to a computer system can enable a 3D human-computer interaction loop, which can be used in 3D software for design. A 3D display shows [[depth cue]]s based largely on focus and/or [[binocular disparity]].

3D displays connected to a computer system can enable a 3D human-computer interaction loop, which can be used in 3D software for design. A 3D display shows [[depth cue]]s based largely on focus and/or [[binocular disparity]].

Holography is theoretically not necessary for a full 3D display. A [[light field display]] is a type of display that can show full proper focus. 3D displays can be world-fixed, like mounted on a desk, or they can be head fixed, like built into a [[VR headset]].

Holography is theoretically not necessary for a full 3D display. A [[light field display]] is a type of display that can show full proper focus. 3D displays can be world-fixed, like mounted on a desk, or they can be head fixed, like built into a [[VR headset]].

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==Approaches==

==Approaches==