@inweb/viewer-three/src/Viewer/scenes/Helpers.ts

JavaScript library for rendering CAD and BIM files in a browser using Three.js

///////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2002-2025, Open Design Alliance (the "Alliance").
// All rights reserved.
//
// This software and its documentation and related materials are owned by
// the Alliance. The software may only be incorporated into application
// programs owned by members of the Alliance, subject to a signed
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable
// trade secrets of the Alliance and its suppliers. The software is also
// protected by copyright law and international treaty provisions. Application
// programs incorporating this software must include the following statement
// with their copyright notices:
//
//   This application incorporates Open Design Alliance software pursuant to a
//   license agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2025 by Open Design Alliance.
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

import { Scene, WebGLRenderer } from "three";

export class Helpers extends Scene {
  private oldAutoClear = false;
  private oldClippingPlanes = [];

  override onBeforeRender(renderer: WebGLRenderer): void {
    this.oldAutoClear = renderer.autoClear;
    this.oldClippingPlanes = renderer.clippingPlanes;

    renderer.autoClear = false;
    renderer.clippingPlanes = [];
  }

  override onAfterRender(renderer: WebGLRenderer): void {
    renderer.clippingPlanes = this.oldClippingPlanes;
    renderer.autoClear = this.oldAutoClear;
  }
}