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web-app/node_modules/three/examples/jsm/tsl/display/StereoPassNode.js

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+import { StereoCamera, Vector2, PostProcessingUtils } from 'three';
+import { PassNode, nodeObject } from 'three/tsl';
+
+const _size = /*@__PURE__*/ new Vector2();
+
+let _rendererState;
+
+class StereoPassNode extends PassNode {
+
+	static get type() {
+
+		return 'StereoPassNode';
+
+	}
+
+	constructor( scene, camera ) {
+
+		super( PassNode.COLOR, scene, camera );
+
+		this.isStereoPassNode = true;
+
+		this.stereo = new StereoCamera();
+		this.stereo.aspect = 0.5;
+
+	}
+
+	updateBefore( frame ) {
+
+		const { renderer } = frame;
+		const { scene, camera, stereo, renderTarget } = this;
+
+		_rendererState = PostProcessingUtils.resetRendererState( renderer, _rendererState );
+
+		//
+
+		this._pixelRatio = renderer.getPixelRatio();
+
+		stereo.cameraL.coordinateSystem = renderer.coordinateSystem;
+		stereo.cameraR.coordinateSystem = renderer.coordinateSystem;
+		stereo.update( camera );
+
+		const size = renderer.getSize( _size );
+		this.setSize( size.width, size.height );
+
+		renderer.autoClear = false;
+
+		this._cameraNear.value = camera.near;
+		this._cameraFar.value = camera.far;
+
+		for ( const name in this._previousTextures ) {
+
+			this.toggleTexture( name );
+
+		}
+
+		renderer.setRenderTarget( renderTarget );
+		renderer.setMRT( this._mrt );
+		renderer.clear();
+
+		renderTarget.scissorTest = true;
+
+		renderTarget.scissor.set( 0, 0, renderTarget.width / 2, renderTarget.height );
+		renderTarget.viewport.set( 0, 0, renderTarget.width / 2, renderTarget.height );
+		renderer.render( scene, stereo.cameraL );
+
+		renderTarget.scissor.set( renderTarget.width / 2, 0, renderTarget.width / 2, renderTarget.height );
+		renderTarget.viewport.set( renderTarget.width / 2, 0, renderTarget.width / 2, renderTarget.height );
+		renderer.render( scene, stereo.cameraR );
+
+		renderTarget.scissorTest = false;
+
+		// restore
+
+		PostProcessingUtils.restoreRendererState( renderer, _rendererState );
+
+	}
+
+}
+
+export default StereoPassNode;
+
+export const stereoPass = ( scene, camera ) => nodeObject( new StereoPassNode( scene, camera ) );