# Problem with tutorial! help! 3d faces and depth

**URL:** <https://forum.kirupa.com/t/problem-with-tutorial-help-3d-faces-and-depth/162511>\
**Category:** flash\
**Created:** [September 13, 2005, 11:51pm UTC](https://forum.kirupa.com/t/problem-with-tutorial-help-3d-faces-and-depth/162511 "2005-09-13T23:51:41Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![dgtlmoon](https://avatars.discourse-cdn.com/v4/letter/d/ecd19e/32.png) [@dgtlmoon](https://forum.kirupa.com/u/dgtlmoon)\
**Post date:** [September 13, 2005, 11:51pm UTC](https://forum.kirupa.com/t/problem-with-tutorial-help-3d-faces-and-depth/162511/1 "2005-09-13T23:51:41Z")

</div>

Hi all, been working thru the tutorials and ive been pretty successful with most of them up until now, when trying the tute from this url

[http://www.kirupa.com/developer/actionscript/faces\_depths.htm](http://www.kirupa.com/developer/actionscript/faces_depths.htm)

Nothing appears when i goto test the movie, any ideas? heres the actionscript code im working with - is this right? is this what is meant to be in place? some of it is included from previous tutorials in the chapter

this.createEmptyMovieClip(“theScene”, 1);  
theScene.\_x = 150;  
theScene.\_y = 150;

focalLength = 300;  
make3DPoint = function(x,y,z){  
var point = new Object();  
point.x = x;  
point.y = y;  
point.z = z;  
return point;  
};  
make2DPoint = function(x,y, depth, scaleFactor){  
var point = new Object();  
point.x = x;  
point.y = y;  
point.depth = depth;  
point.scaleFactor = scaleFactor;  
return point;  
};  
Transform3DPointsTo2DPoints = function(points, axisRotations){  
var TransformedPointsArray = [];  
var sx = Math.sin(axisRotations.x);  
var cx = Math.cos(axisRotations.x);  
var sy = Math.sin(axisRotations.y);  
var cy = Math.cos(axisRotations.y);  
var sz = Math.sin(axisRotations.z);  
var cz = Math.cos(axisRotations.z);  
var x,y,z, xy,xz, yx,yz, zx,zy, scaleFactor;

```
var i = points.length;
while (i--){
    x = points*.x;
    y = points*.y;
    z = points*.z;

    // rotation around x
    xy = cx*y - sx*z;
    xz = sx*y + cx*z;
    // rotation around y
    yz = cy*xz - sy*x;
    yx = sy*xz + cy*x;
    // rotation around z
    zx = cz*yx - sz*xy;
    zy = sz*yx + cz*xy;
    
    scaleFactor = focalLength/(focalLength + yz);
    x = zx*scaleFactor;
    y = zy*scaleFactor;
    z = yz;

    TransformedPointsArray* = make2DPoint(x, y, -z, scaleFactor);
}
return TransformedPointsArray;

```

};  
pointsArray = [  
make3DPoint(-50,-50,-50),  
make3DPoint(50,-50,-50),  
make3DPoint(50,-50,50),  
make3DPoint(-50,-50,50),  
make3DPoint(-50,50,-50),  
make3DPoint(50,50,-50),  
make3DPoint(50,50,50),  
make3DPoint(-50,50,50)  
];  
for (i=0; i \< pointsArray.length; i++){  
attachedObj = theScene.attachMovie(“redballoon”, “redballoon”+i, i);  
}  
cubeAxisRotations = make3DPoint(0,0,0);  
rotateCube = function(){  
cubeAxisRotations.y -= this.\_xmouse/3000;  
cubeAxisRotations.x += this.\_ymouse/3000;  
var screenPoints = Transform3DPointsTo2DPoints(pointsArray, cubeAxisRotations);  
for (i=0; i \< pointsArray.length; i++){  
currBalloon = this[“balloon”+i];  
currBalloon.\_x = screenPoints\*.x;  
currBalloon.\_y = screenPoints\*.y;  
currBalloon.\_xscale = currBalloon.\_yscale = 100 \* screenPoints\*.scaleRatio;  
currBalloon.swapDepths(screenPoints\*.depth);  
}  
};  
theScene.onEnterFrame = rotateCube;