Adobe AfterEffects Script (JSX):Z_fake_DOF

Z_fake_DOF_v20150719.jsx

/*
Adobe AfterEffects Script (JSX)
	fake_DOF
		v20150719
*/

////////////////////////////////variable declaration////////////////////////////////
var thisComp= app.project.activeItem;
var selectedLayers= new Array();
var thisLayer = null;
var focusNul,foucusZ,Zpos,slider1,slider2;
var exp = "Focus_Null = thisComp.layer(\"Focus_Null\");" + "\n" +
                "FocusZ = Focus_Null.transform.position[2];" + "\n" +
                "thisZ = transform.position[2];" + "\n" +
                "range = Focus_Null.effect(\"range_near/far\")(1);" + "\n" +
                "offset = Focus_Null.effect(\"offset_near/far\")(1);" + "\n" +
                "blur = Focus_Null.effect(\"Blur_near/far\")(1);" + "\n" +
                "if (thisZ < FocusZ){" + "\n" +
                "if (thisZ < range[0]){temp = blur[0]}else{" + "\n" +
                "if (thisZ > (FocusZ + offset[0])){temp = 0}else{" + "\n" +
                "temp = ((thisZ - FocusZ) - offset[0]) / (range[0] - (FocusZ + offset[0]));" + "\n" +
                "temp = Math.abs(temp) * blur[0];" + "\n" +
                "};" + "\n" +
                "};" + "\n" +
                "}else if (thisZ > FocusZ){" + "\n" +
                "if (thisZ > range[1]){temp = blur[1];}else{" + "\n" +
				"if (thisZ < (FocusZ + offset[1])){temp = 0}else{" + "\n" +
                "temp = ((thisZ - FocusZ) - offset[1]) / (range[1] - (FocusZ + offset[1]));" + "\n" +
                "temp = Math.abs(temp) * blur[1];" + "\n" +
                "};" + "\n" +
                "};" + "\n" +
                "}else {temp = 0}" + "\n" +
                "temp";
                
////////////////////////////////body////////////////////////////////
if(thisComp instanceof CompItem){
    selectedLayers = thisComp.selectedLayers;
    if(selectedLayers.length > 0){
        Zpos = compareZ(selectedLayers);
        if (typeof(Zpos[0]) == "number" && typeof(Zpos[1]) == "number"){
			//  add DOF Null
			app.beginUndoGroup("add_focus_Null");
			foucusZ = (Zpos[1]-((Zpos[1]-Zpos[0])/2));
			focusNul = create3dNull(thisComp,foucusZ,"Focus_Null");
			chkBox0 = focusNul.property("ADBE Effect Parade").addProperty("ADBE Checkbox Control");
			chkBox0.name = "Blur_ON/OFF";
			chkBox0.property("ADBE Checkbox Control-0001").setValue(true);
			slider1 = focusNul.property("ADBE Effect Parade").addProperty("ADBE Point Control");
			slider1.name = "Blur_near/far";
			slider1.property("ADBE Point Control-0001").setValue([30,30]);
			slider2 = focusNul.property("ADBE Effect Parade").addProperty("ADBE Point Control");
			slider2.name = "range_near/far";
			slider2.property("ADBE Point Control-0001").setValue([Zpos[0],Zpos[1]]);
			slider3 = focusNul.property("ADBE Effect Parade").addProperty("ADBE Point Control");
			slider3.name = "offset_near/far";
			slider3.property("ADBE Point Control-0001").setValue([0,0]);
            app.endUndoGroup();
            //	add DOF effect
            app.beginUndoGroup("add_Blur");
			for (var i = 0; i < selectedLayers.length; i++) {
				//fastBlur
				thisFill = selectedLayers[i].property("ADBE Effect Parade").addProperty("ADBE Fast Blur");
				thisFill.property("ADBE Fast Blur-0001").expression = exp;
				thisFill.property("ADBE Fast Blur-0003").setValue(true);
				
			};
			app.endUndoGroup();
        };
    } else {
        alert('unselected layer'); 
    };
} else {
    alert('unselected compositon');
};

////////////////////////////////functions////////////////////////////////
// Zを比較
function compareZ(layers){
    var max = null;
    var min = null;
    for (var i = 0; i < layers.length; i++) {
        if (! layers[i].threeDLayer){}else {
			tmpN = layers[i].position.value[2];
			if (typeof(max) == "number") {max = Math.max(max, tmpN)} else {max = tmpN};
			if (typeof(min) == "number") {min = Math.min(min, tmpN)} else {min = tmpN};
        };
    };
    return [min,max];
};
//3Dnullを作成
function create3dNull (comp,value,string){
	var tempNull = comp.layers.addNull();
	tempNull.threeDLayer = true;
	tempNull.position.setValue([(comp.width/2),(comp.height/2),value]);
	tempNull.name = string;
	return tempNull;
};

/*エクスプレッション
Focus_Null = thisComp.layer("Focus_Null");
FocusZ = Focus_Null.transform.position[2];
thisZ = transform.position[2];
range = Focus_Null.effect("range_near/far")(1);
offset = Focus_Null.effect("offset_near/far")(1);
blur = Focus_Null.effect("Blur_near/far")(1);
if (thisZ < FocusZ){
	if (thisZ < range[0]){
		temp = blur[0];
	}else{
		if (thisZ > (FocusZ + offset[0])){temp = 0}else{
			temp = ((thisZ - FocusZ) - offset[0]) / (range[0] - (FocusZ + offset[0]));
			temp = Math.abs(temp) * blur[0];
		};
	};
}else if (thisZ > FocusZ){
	if (thisZ > range[1]){
		temp = blur[1];
	}else{
		if (thisZ < (FocusZ + offset[1])){temp = 0}else{
		temp = ((thisZ - FocusZ) - offset[1]) / (range[1] - (FocusZ + offset[1]));
		temp = Math.abs(temp) * blur[1];
		};
	};
}else {temp = 0}
temp
*/