scan line effect

Patrick · Post by **Patrick** » Thu Dec 28, 2006 7:24 pm

This is a function i just threw together to draw a scan line effect onto a image:

Code: Select allfunction scanlines() {
// reference the current document
var docRef = app.activeDocument;
var w = docRef.width;
var h = docRef.height;

// set the color to fill the lines
var solidColorRef = new SolidColor();
solidColorRef.rgb.red = 0;
solidColorRef.rgb.green = 0;
solidColorRef.rgb.blue = 0;

// make new layer for thet scanlines
docRef.artLayers.add();
docRef.activeLayer.name = "scanlines";
docRef.activeLayer.opacity = 55;

// select every other line
var x = 2;

while (x <= h) {
   // Select the region
   docRef.selection.select(
      new Array(
         new Array(0, x-1),
         new Array(w, x-1),
         new Array(w, x),
         new Array(0, x)
      ), SelectionType.EXTEND
   );
   var x = x+2;
};

// fill the selection
docRef.selection.fill(solidColorRef);
docRef.selection.deselect();
};

scanlines();

regards,
Patrick