var x = this.point3D.x - tv.camera.x.position;
var y = this.point3D.y - tv.camera.y.position;
this.point3D.z.move(this.point3D.z.target, this.point3D.z.target ? .15 : .08);
/* ==== rotations ==== */
var xy = tv.angle.cx * y - tv.angle.sx * this.point3D.z.position;
var xz = tv.angle.sx * y + tv.angle.cx * this.point3D.z.position;
var yz = tv.angle.cy * xz - tv.angle.sy * x;
var yx = tv.angle.sy * xz + tv.angle.cy * x;
/* ==== 2D transform ==== */
var scale = tv.camera.focalLength / (tv.camera.focalLength + yz);
x = yx * scale;
y = xy * scale;
var w = Math.round(Math.max(0, this.point3D.w * scale * this.point3D.sw));
var h = Math.round(Math.max(0, this.point3D.h * scale * this.point3D.sh));
/* ==== HTML rendering ==== */
var o = this.style;
o.left = Math.round(x + tv.screen.w - w * .5) + 'px';
o.top = Math.round(y + tv.screen.h - h * .5) + 'px';
o.width = w + 'px';
o.height = h + 'px';
o.zIndex = 10000 + Math.round(scale * 1000);
}
*
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