Check this out:
http://away3d.com/pete/ClosestFace.swf
I'm just making the faces bigger depending on distanceTo(), here's the code,
hope it helps you out
-Pete
package {
import flash.display.*;
import flash.events.*;
import away3d.core.base.*;
import away3d.core.math.*;
import away3d.containers.*;
import away3d.primitives.*;
import away3d.cameras.*;
import away3d.core.render.*;
import away3d.materials.*;
import away3d.core.utils.*;
public class ClosestFace extends Sprite {
var view:View3D;
var mySphere;
var myCube;
var myNull;
var cubeContainer;
var face1;
var face2;
var face3;
var face4;
var face5;
var face6;
function ClosestFace() {
stage.frameRate=30;
away3dcreate();
addEventListener(Event.ENTER_FRAME,away3dloop);
}
function away3dcreate():void {
addChild(view=new View3D({x:300, y:200}));
//
mySphere=new Sphere({material:new WireColorMaterial()});
myCube=new Cube({width:250,height:250,depth:250});
myNull=new Object3D;
//
face1=new Sphere({z:150});
face2=new Sphere({z:-150});
face3=new Sphere({x:150});
face4=new Sphere({x:-150});
face5=new Sphere({y:150});
face6=new Sphere({y:-150});
//
cubeContainer=new ObjectContainer3D;
cubeContainer.addChildren(myCube,face1,face2,face3,face4,face5,face6);
//
view.scene.addChild(mySphere);
view.scene.addChild(cubeContainer);
}
function away3dloop(event:Event):void {
mySphere.x=600-(mouseX*2);
mySphere.y=400-(mouseY*2);
for (var i:int = 1; i< 7; i++){
myNull.moveTo(this["face"+i].scenePosition.x,
this["face"+i].scenePosition.y, this["face"+i].scenePosition.z);
var dist=400-(mySphere.distanceTo(this["face"+i])/2);
this["face"+i].scaleX=(dist)/(this["face"+i].maxX-this["face"+i].minX);
this["face"+i].scaleY=(dist)/(this["face"+i].maxY-this["face"+i].minY);
this["face"+i].scaleZ=(dist)/(this["face"+i].maxZ-this["face"+i].minZ);
}
view.camera.moveTo(myCube.x,myCube.y,myCube.z);
view.camera.moveBackward(2500);
cubeContainer.rotationY+=1;
cubeContainer.rotationX+=2;
view.render();
}
}
}
On Sun, Dec 7, 2008 at 8:15 PM, cellis <[EMAIL PROTECTED]> wrote:
>
> Hello all,
>
> how could i find the distance to , for instance, the back xy face of a
> cube?
--
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