Hi, I am currently in the process of creating an 3D Editor in Away 3D.
This is to aid the editing of a Path on the fly (using PathExtrude to view the path) I've got a Main View which is a Perspective View. I then have an editor view that I can swap the camera position to project TOP FRONT LEFT RIGHT BACK view - like most 3D Applications. I am then plotting the screen 2D coords of the CurveSegment elements (v0,vc,v1) of the entire path, so I can assign buttons to edit the X Y Z coords depending on the view (TOP, FRONT etc) This is the code that gets the 3D intersection of the 2D buttons used to edit the CurveSegment elements using a Plane3D to act as the intersection point. this particular example would look directly above the scene // cameraPosition = new Number3D(0, 15000, 0); intersectionPlane.fromNormalAndPoint(new Number3D(0, 1, 0), new Number3D(0, 0, 0)); ray = editorView.cam.unproject((e.params.coords.x - (EDIT_VIEW_WIDTH * 0.5)),(e.params.coords.y - (EDIT_VIEW_HEIGHT * 0.5))) ray.add(cameraPosition, ray); intersect = intersectionPlane.getIntersectionLineNumbers (cameraPosition,ray); updatePath(intersect,e.params.cSeg,e.params.vType,"camera"); // this seems to work fine. However, when I change the Camera View to "RIGHT or LEFT" you would presume the Normal for the Plane3D would be "new Number3D(1, 0, 0)" - pointing at the camera in the X-Axis but intersection will only occur in the Y axis. the Z axis intersection only occurs at 0. I've spent all day looking up 3D maths, and my conclusion is that I'm doing everything right - I just can't work out what i could of missed, as all the other views work fine. Many Thanks
