gistfile1.js

function render() {
	rotation.x += ( target.x - rotation.x ) * 0.05;
	rotation.y += ( target.y - rotation.y ) * 0.05;
	distance += ( distanceTarget - distance ) * 0.05;

	camera.position.x = distance * Math.sin( rotation.x ) * Math.cos( rotation.y );
	camera.position.y = distance * Math.sin( rotation.y );
	camera.position.z = distance * Math.cos( rotation.x ) * Math.cos( rotation.y );

	if( cubes.length > 0 ) {
		// this is amazing...
		//console.log( camera.position.distanceTo( cubes[0] ) - distance + 200 );
		var hits = false;
		for( var i = 0, len = cubes.length; i < len; i++ ) {
			if( (camera.position.distanceTo( cubes[i] ) - distance + 200 ) < 4 ) {
				hits = true;
				if( !videos[i].displayed ) {
					videos[i].displayed = true;
					$("#video_wrapper").addClass("gotime").html("<img src='http://img.youtube.com/vi/"+videos[i].vid+"/0.jpg' />" );
					current_vid = videos[i].vid;
				}
			} else {
				videos[i].displayed = false;
			}
		}
		if( !hits ) {
			$("#video_wrapper").removeClass("gotime").html("");
		}
	}

	renderer.clear();
	renderer.render( scene, camera );
	renderer.render( sceneAtmosphere, camera );

}

function checkIntersection(evt) {

	if( bMoved ) {
	} else {
		// get the mouse position and create
		// a projector for the ray
		var mouseX    = evt.offsetX || evt.clientX,
			mouseY    = evt.offsetY || evt.clientY,
			projector = new THREE.Projector();
	 
		// set up a new vector in the correct
		// coordinates system
		var vector    = new THREE.Vector3(
			(mouseX / window.innerWidth) * 2 - 1,
			-(mouseY / window.innerHeight) * 2 + 1,
			0.5);
	 
		// now "unproject" the point on the screen
		// back into the the scene itself. This gives
		// us a ray direction
		projector.unprojectVector(vector, camera);

		// create a ray from our current camera position
		// with that ray direction and see if it hits the sphere
		var ray     = new THREE.Ray(camera.position, vector.subSelf(camera.position).normalize()),
		intersects  = ray.intersectObject(mesh);
	 	
	 	if( intersects.length > 0 ) {
	 		var temproid = intersects[0].face.centroid;

			cube = new THREE.Mesh(
				new Cube( 10, 10, 30 ),
				new THREE.MeshLambertMaterial( { color: 0xFF0000 } )
			);
			cube.position.x = temproid.x;
			cube.position.y = temproid.y;
			cube.position.z = temproid.z;
			cube.lookAt( mesh.position );
			cube.updateMatrix();

			cubes.push( cube.position );

			scene.addObject( cube );
	 	}
	}
	 bMoved = false;
}