three-stdlib/effects/StereoEffect.js

stand-alone library of threejs examples

import { StereoCamera, Vector2 } from "three";
class StereoEffect {
  constructor(renderer) {
    const _stereo = new StereoCamera();
    _stereo.aspect = 0.5;
    const size = new Vector2();
    this.setEyeSeparation = function(eyeSep) {
      _stereo.eyeSep = eyeSep;
    };
    this.setSize = function(width, height) {
      renderer.setSize(width, height);
    };
    this.render = function(scene, camera) {
      if (scene.matrixWorldAutoUpdate === true)
        scene.updateMatrixWorld();
      if (camera.parent === null && camera.matrixWorldAutoUpdate === true)
        camera.updateMatrixWorld();
      _stereo.update(camera);
      renderer.getSize(size);
      if (renderer.autoClear)
        renderer.clear();
      renderer.setScissorTest(true);
      renderer.setScissor(0, 0, size.width / 2, size.height);
      renderer.setViewport(0, 0, size.width / 2, size.height);
      renderer.render(scene, _stereo.cameraL);
      renderer.setScissor(size.width / 2, 0, size.width / 2, size.height);
      renderer.setViewport(size.width / 2, 0, size.width / 2, size.height);
      renderer.render(scene, _stereo.cameraR);
      renderer.setScissorTest(false);
    };
  }
}
export {
  StereoEffect
};
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