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At first, I thought about how to make a relationship between motion and sound. That's the reason why I used a theremin. It could be measured the position with sound changes.
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I hung 2 balls to the antenna with 2 types of thread ; elastic and inelastic.
| theremin + motion tracking |
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I got position values of 3 tracking points from the video I took, and then made a 3D object with 295 vertexes.
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| 3d object _clip motion |
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| screen capture _in Maya |
_vertex.x = position.x (0-1024)
_vertex.y = position.y (0-768)
_vertex.z = peak value of theremin sound (1-1000)
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And developed it using Plexus effect in After effects.
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| 4 steps with Plexus |
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Next, I connected my previous work with the night view, because Prof. David said it reminded city lights at night. (and I think so, too)
In addition, I think a circular motion in the 1st video is very similar to a circumpolar star (or the diurnal motion), and city lights are stars on the ground.
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Based on this idea, I combined 2 different motions and made a kinetic object using Syntheyes.
| 5 videos ; theremin + city lights |
_ video 1
_ video 2
_ video 1+2 _dot pixels
_ video 1+2 _plexus_line
_ video 1+2 _plexus_triangulation
I think Syntheyes is much easier to track than Tracker in After effects.
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| screen capture in Syntheyes |
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| screen capture in Syntheyes |
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| screen capture in After effects |
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When I tracked the video using Syntheyes, there were some errors from the movements of tracking points. Maybe it was because of cars.
| error in Syntheyes and my previous work |
I thought this error (or some motions and sounds) could be used for making various changes, and develop my works.
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So I took more videos and made some kinetic sculptures controlled by motion. The right side of the video is added a previous motion, and all motions are connected.
| kinetic city sculpture |
_ video 2 / video 1+2
_ video 3 / video 1+2+3
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| screen capture in After effects |
