Hi, I want to cover up an AR marker with a textured plane. My plan was to get 4 pixels around the marker and then create a plane with vertex colors to interpolate between the corners. I'm struggling a bit with the coordinate systems. When I get the corner vertices of the marker they are in screen space (which is good to get the pixel colors of the camera bitmapdata) BUT I want to move my capture point in local scene3d (away3d) coordinates.
If I add a 3d object (e.g. a trident) to my scene I simply can use obj.x = obj.y =100 to move it outside my marker (0,0 is the middle point of my marker) but I can't pick my pixel color using screen- coordinates (obj.x is still 100). I've tried camera.screen(scene3d, obj.vertices[0]) to get screen-coordinates but it wasn't working. Is there a simple way to add a point/invisible object to the 3d scene, move it (local space) and then retrieve the screen coordinates of it? I'm using Away 3.6 and FLARtoolkit. Thanks Michael
