first commit

public/sdk/three/jsm/effects/StereoEffect.js

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+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 };