Fragments of Motion

Drawing Together: Spatial Memory

Humbi Song
DDes 2027
Isabelle Lee
MDes Ecologies 2026
Benedetta Zuccarelli
MDes Ecologies 2025
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1 A studio of "collaborative drawing": reacting real-time to each other

Fragments of Motion is a series of experiments on collaborative spatial drawing between two people, where the one person tries to (1) mimic the other person's movements, (2) mirror each other's movements, and (3) collaboratively draw complementing each other's movements.​

How accurately can you trace over a line drawn in space? How good is our spatial memory? What kind of forms emerge when you try to co-create around each other? These questions arise from our curiosity about human spatial perception and memory, and our interest in the beauty that can arise from the misalignments. ​

In this set of diagrammatic studies, the line lengths, color gradients, and moiré are used to indicate the degree of alignments. In the studies of mimicking and mirroring, line lengths represent the degree of "accuracy", where the longer and lighter lines indicate more accuracy. In the study of collaborative drawing of respond real-time to each others' movements, the shorter the distance between the two people, the lighter the line in the center. What the visualization reveals is that, when drawing collaboratively around each others' movements, these two people intuitively create rotational symmetries without being instructed, instinctively completing a circle around each other.​

Project video
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2 A study of "mimicking"
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3 A study of "mirroring" - A
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4 A study of "mirroring" - B
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5 A study of "collaborative drawing"