//****************************** SUBROUTINES

function Bake(theComp, propBeingCopied, propBeingWritten) {
	StartBake=theComp.workAreaStart;
	EndBake=StartBake+theComp.workAreaDuration;
	NextFrame=1/theComp.frameRate;
	for (var i=StartBake; i<EndBake; i=i+NextFrame) {
		propBeingWritten.setValueAtTime(i,propBeingCopied.valueAtTime(i, false));
	};
};

function BakeRot(theComp, propBeingCopied, propBeingWritten) {
	StartBake=theComp.workAreaStart;
	EndBake=StartBake+theComp.workAreaDuration;
	NextFrame=1/theComp.frameRate;
	for (var i=StartBake; i<EndBake; i=i+NextFrame) {
		value = propBeingCopied.valueAtTime(i, false);
		if(value>180) value = value-360;
		if(value<-180) value = value+360;
		propBeingWritten.setValueAtTime(i,value);
	};
};

//****************************** MAIN PROGRAM

theComp = app.project.activeItem;
theCamera = theComp.selectedLayers;
CameraName = theCamera[0].name;

theComp.layers.addCamera("CameraCopy 1",[0,0]).startTime=0;
CamCopy01=theComp.layer(1);
CamCopy01.position.expression="L=thisComp.layer("+"\'"+CameraName+"\'"+");L.toWorld([0,0,0])";
CamCopy01.pointOfInterest.expression="position";
CamCopy01.orientation.expression="C = this_comp.layer("+"\'"+CameraName+"\'"+");u = C.to_world_vec([1,0,0]);v = C.to_world_vec([0,1,0]);w = C.to_world_vec([0,0,1]);sinb = clamp(w[0],-1,1);b = Math.asin(sinb/this_comp.pixel_aspect);cosb = Math.cos(b);if (Math.abs(cosb) > .0005){c = -Math.atan2(v[0],u[0]);a = -Math.atan2(w[1],w[2]);}else{a = Math.atan2(u[1],v[1]);c = 0;}[radians_to_degrees(a),radians_to_degrees(b),radians_to_degrees(c)]";

theComp.layers.addCamera("CameraCopy 2",[0,0]).startTime=0;
CamCopy02=theComp.layer(1);
CamCopy02.position.expression="thisComp.layer('CameraCopy 1').position";
CamCopy02.pointOfInterest.expression="position";
CamCopy02.rotationX.expression="thisComp.layer('CameraCopy 1').orientation[0]";
CamCopy02.rotationY.expression="thisComp.layer('CameraCopy 1').orientation[1]";
CamCopy02.rotation.expression="thisComp.layer('CameraCopy 1').orientation[2]";
CamCopy02.zoom.expression="this_comp.layer("+"\'"+CameraName+"\'"+").zoom";

theComp.layers.addCamera("Baked Camera",[0,0]).startTime=0;
CamCopy03=theComp.layer(1);

Bake(theComp, theComp.layer(2).position, CamCopy03.position);
CamCopy03.pointOfInterest.expression="position";
BakeRot(theComp, theComp.layer(2).rotationX, CamCopy03.rotationX);
BakeRot(theComp, theComp.layer(2).rotationY, CamCopy03.rotationY);
BakeRot(theComp, theComp.layer(2).rotation, CamCopy03.rotation);
Bake(theComp, theComp.layer(2).zoom, CamCopy03.zoom);

theComp.layer(3).remove();
theComp.layer(2).remove();

alert("Turn off the auto-orientation on the baked camera");

//****************************** END