Processing DMX Bridge
Um Daten von Processing an DMX (siehe Wikipedia) zu übergeben nutzen wir ein Arduino als Brücke. Auf das Arduino setzen wir das DMX Shield und programmieren es mit dem folgenden Code
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import processing.serial.*; // Import the Processing Serial Library for communicating with arduino
Serial dmxPort; // The used Serial Port
int[][] dmxValues; //First dimension = number of DMX channels //Second dimension = channel, value
int amountOfDMXChannels = 3;
void setup()
{
background(0);
size(500, 500);
println(Serial.list()); // Prints the list of serial available devices (Arduino should be on top of the list)
dmxPort = new Serial(this, Serial.list()[Serial.list().length-1], 9600); // Open a new port and connect with Arduino at 9600 baud
dmxValues = new int[amountOfDMXChannels][2];
dmxValues[0][0] = 0;
dmxValues[1][0] = 1;
dmxValues[2][0] = 2;
}
void draw()
{
background(0);
color c = color(map(mouseX,0,width,0,255),map(mouseY,0,height,0,255),0);
text("R: "+red(c)+"\t G: "+green(c)+"\t B: "+blue(c), 20, 20);
dmxValues[0][1] = int(red(c));
dmxValues[1][1] = int(green(c));
dmxValues[2][1] = int(blue(c));
sendDMX(dmxValues);
}
void sendDMX(int valuesToSend[][])
{
for (int i=0; i<valuesToSend.length; i++)
{
dmxPort.write(str(valuesToSend[i][0]));
dmxPort.write(",");
dmxPort.write(str(valuesToSend[i][1]));
dmxPort.write("\n");
}
}
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//Spatial Interaction //ZHdK, Interaction Design //iad.zhdk.ch //Beispiel 8: Kamerabild BlobDetection import processing.video.*; Capture video; BlobDetection blobDetector; color blobColor; void setup() { size(640, 480); video = new Capture(this, width, height, 15); video.start(); blobDetector = new BlobDetection(); blobColor = color(255, 0, 0); smooth(); } void draw() { if (video.available()) { video.read(); } video.loadPixels(); //video.filter(THRESHOLD,0.1); //For black and white image image(video, 0, 0); blobDetector.findBlob(video, blobColor, 20); blobDetector.drawBlob(); blobDetector.drawBox(); blobDetector.drawCoM(); } void mousePressed() { int loc = mouseX + mouseY*video.width; blobColor = video.pixels[loc]; }
Einstellungen an den DMX Empfängern (Leuchten, Scanner usw.)
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