i using vuforia , unity3d develop application. this, need camera position (x,y,z) in real world unit image target while tracking image mobile phone. wondering if possible such position information in vuforia . if yes, sample code highly appreciated.
try this.
public class exampleclass : monobehaviour { public transform target; camera camera; void start() { camera = getcomponent<camera>(); } void update() { vector3 screenpos = camera.worldtoscreenpoint(target.position); debug.log("target " + screenpos.x + " pixels left"); } } what transforms position world space screen space.
screenspace defined in pixels. bottom-left of screen (0,0); right-top (pixelwidth,pixelheight). z position in world units camera.
may not want starting point.
edit: returns world space not local space should want
public class exampleclass : monobehaviour { public gameobject someobject; public vector3 theposition; void start() { // instantiate object right of current object theposition = transform.transformpoint(vector3.right * 2); instantiate(someobject, theposition, someobject.transform.rotation); } } note returned position affected scale. use transform.transformdirection if dealing direction vectors. can perform opposite conversion, world local space using transform.inversetransformpoint.
