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visuals | Webel IT Australia "The Elements of the Web"

visuals

Pure Data example: The Ethical eMarket logo animation

The Ethical eMarket logo was animated by Webel using the GEM visual synthesis extensions for the PureData synthesis environment:

Circles.pd

Circles.pd

Generates the 4 circles in the Drancel RGB PureData/GEM accelerometer monitors. The central circle is the simple additive colour derived from the (R,G,B) values corresponding to the (X,Y,Z) accelerometer signals.

GlobalTrig.pd.2

GlobalTrig.pd.2

Global setting of the trigger threshold (and RESET/OFF switches). It can be useful to tune the threshold across all Drancels equally when the accelerometers are all worn/held in a similar location (like all hands), however when they are worn on - for example - both the hands and feet the thresholds need to be separately tuned.

Compressor.pd

Compressor.pd

The IEM limiter~ used in compressor mode, with some GUI and defaults.

GlobalVFO.pd

GlobalVFO.pd

The variable frequency oscillators can be globally controlled across all Drancels.

Condition.pd

Condition.pd

Before sensible synthesis can occur each accelerometer Drancel must by calibrated, or "homed". This calibration value is then applied as an offset to condition the Drancel.

The homing process is a crucial principle in Drancing, as it defines a point of "silence and darkness" for the "drancing" performer, and promotes body awareness. The "homing" can take place at any accelerometer orientation (as long as the accelerometers are held still for the brief period of calibration, typically 1 second).

The signals are also scaled linearly, and then clipped to within -1..1 range.

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