所以這將是一個doosy位,也許...我試圖用一個名爲FLARToolkit的Flash插件在增強現實中播放視頻剪輯。我有一個綠屏視頻,我需要在飛機上播放視頻。我目前正在使用MovieClipMaterial將視頻放置在顯示屏上。我想通過顯示平面中的像素進行讀取,並在綠色屏幕中更改與綠色相匹配的像素,並將這些像素設置爲透明,色度鍵控。這樣做可能會更有效,我願意接受建議。ChromaKeying視頻使用FLARToolkit編程方式
我也看過ColorMatrixFilters,但我還沒有能夠設計一種方法使其具有選擇性,而不是過濾掉剪輯中的所有綠色。
這裏是我的代碼,目前的情況是:
[SWF(width='640', height='480', backgroundColor='#000000', frameRate='40')]
public class HelloFLAR extends Sprite
{
private var fm:FLARManager;
private var scene:Scene3D;
private var view:Viewport3D;
private var camera:FLARCamera3D;
private var bre:BasicRenderEngine;
private var lre:LazyRenderEngine;
private var p:Plane;
private var con:DisplayObject3D;
private var marker:FLARMarker;
private var v:Vid;
private var mat:MovieMaterial
private var bmd:BitmapData;
private var videoStream:NetStream;
private var container:FLARBaseNode;
private var RGBRaster:FLARRgbRaster_BitmapData;
public function HelloFLAR()
{
initFLAR();
v = new Vid();
//source for displayed video
v.vid.source = "Reuters.m4v";
v.vid.stop();
}
private function initFLAR():void
{
fm = new FLARManager("flarConfig.xml");
fm.addEventListener(FLARMarkerEvent.MARKER_ADDED, onAdded);
fm.addEventListener(FLARMarkerEvent.MARKER_REMOVED, onRemoved);
fm.addEventListener(Event.INIT, init3D);
addChild(Sprite(fm.flarSource));
}
private function onAdded(e:FLARMarkerEvent):void
{
marker = e.marker;
p.visible = true;
v.vid.play();
}
private function onRemoved(e:FLARMarkerEvent):void
{
marker = null;
p.visible = false;
v.vid.stop();
}
private function init3D(e:Event):void
{
scene = new Scene3D();
camera = new FLARCamera3D(fm.cameraParams);
camera.z = -30;
view = new Viewport3D(640, 480, true);
lre = new LazyRenderEngine(scene,camera,view);
//Display plane and Videp material
mat = new MovieMaterial(v, false, true);
p = new Plane(mat, 320, 240, 2, 2);
mat.doubleSided = true;
p.rotationZ = 90;
p.visible = true;
//Green Leech from video plane (Attempt at chromakeying)
var matrix:Array = new Array();
matrix = matrix.concat([1,0,0,0,0]); //Red
matrix = matrix.concat([0,1,0,0,0]); //Green
matrix = matrix.concat([0,0,1,0,0]); //Blue
matrix = matrix.concat([0,-1,0,0,0]); //Alpha
var color_filter:ColorMatrixFilter = new ColorMatrixFilter(matrix);;
v.filters = [color_filter];
//container for display Plane
con = new DisplayObject3D();
con.addChild(p);
//Add plane container to scene
scene.addChild(con);
addChild(view);
addChild(new FramerateDisplay());
addEventListener(Event.ENTER_FRAME, loop);
//addEventListener(Event.ENTER_FRAME, pixelCheck);
}
private function loop(e:Event):void
{
if(marker != null)
{
con.transform = FLARPVGeomUtils.convertFLARMatrixToPVMatrix(marker.transformMatrix);
}
lre.render();
}
我似乎無法獲得訪問視頻的像素。我試圖通過飛機和MovieClipMaterial訪問像素,但沒有運氣。
任何幫助將不勝感激!
Adeptatus