Will read an OBJ file and create After Effects nulls for every vertex #AfterEffects #Script #KBar #OBJ #Nulls

objFile vertices to AE Nulls.jsx

// objFile vertices to AE Nulls
// © 2018 Lloyd Alvarez https://aescripts.com/
//
// Select a comp first then run the script and select the OBJ file
//

objFile_vertices_to_AE_Nulls();

function objFile_vertices_to_AE_Nulls () {
var objFile = File.openDialog("Please choose OBJ file");
if (!objFile) return;
if (!(objFile instanceof File) || !objFile.name.toLowerCase().match(/\.obj$/)) {
    alert ("Please make sure it's an objFile file with a .obj  file extention")
    return;
    }
var myComp = app.project.activeItem;
if (!(myComp instanceof CompItem)) {
    alert("Please select a comp to generate the nulls into");
    return;
    }
 if(objFile.open("r")) {
               var obj =  objFile.read();
               objFile.close();
               var objLines = obj.split(/\r?\n/);
               var coords = [];
               var myNull;
               var vertexArray = [];
               for (var i=0; i<objLines.length; i++) {
                   if (objLines[i].match(/^v\s/)) {
                       coords = objLines[i].replace(/^v\s/,"").split(/\s/);
                       if (coords.length == 3) {
                           vertexArray.push(coords);
                           }
                       }
                      }
               if (vertexArray.length > 0) {  
               app.beginUndoGroup("objFile vertices to AE Nulls");
               var parentNull = myComp.layers.addNull();
               parentNull.name = objFile.displayName;
               parentNull.threeDLayer = true;
               parentNull.position.setValue( [myComp.width/2,myComp.height/2] );
               for (var i=0; i<vertexArray.length; i++) {
                   writeLn("Creating null "+(i+1)+" of "+(vertexArray.length));
                   myNull = myComp.layers.addNull();
                   myNull.threeDLayer = true;
                   myNull.parent = parentNull;
                   myNull.position.setValue(vertexArray[i]);
                   }
               }
                     
               parentNull.moveToBeginning();
               app.endUndoGroup();
               
            } else {
                alert ("There was an error reading the obj file");
                }
        }