@polygonjs/polygonjs/dist/src/engine/functions/_SetObjectLookAt.js

node-based WebGL 3D engine https://polygonjs.com

"use strict";
import { Quaternion } from "three";
import { CoreLookAt } from "../../core/LookAt";
import { isBooleanTrue } from "../../core/Type";
import { touchObjectProperty, GetObjectPropertyJsNodeInputName } from "../../core/reactivity/ObjectPropertyReactivity";
import { ObjectNamedFunction5 } from "./_Base";
const q1 = new Quaternion();
const q2 = new Quaternion();
export class setObjectLookAt extends ObjectNamedFunction5 {
  static type() {
    return "setObjectLookAt";
  }
  func(object3D, targetPosition, up, lerp, invertDirection, updateMatrix) {
    object3D.up.copy(up);
    if (lerp >= 1) {
      CoreLookAt.applyLookAt(object3D, targetPosition, invertDirection);
    } else {
      q1.copy(object3D.quaternion);
      CoreLookAt.applyLookAt(object3D, targetPosition, invertDirection);
      q2.copy(object3D.quaternion);
      q1.slerp(q2, lerp);
      object3D.quaternion.copy(q1);
    }
    touchObjectProperty(object3D, GetObjectPropertyJsNodeInputName.quaternion);
    if (isBooleanTrue(updateMatrix)) {
      object3D.updateMatrix();
      touchObjectProperty(object3D, GetObjectPropertyJsNodeInputName.matrix);
    }
  }
}