first commit

public/sdk/three/jsm/objects/QuadMesh.js

@@ -0,0 +1,50 @@
+import { BufferGeometry, Float32BufferAttribute, Mesh, OrthographicCamera } from 'three';
+
+// Helper for passes that need to fill the viewport with a single quad.
+
+const _camera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
+
+// https://github.com/mrdoob/three.js/pull/21358
+
+class QuadGeometry extends BufferGeometry {
+
+	constructor( flipY = false ) {
+
+		super();
+
+		const uv = flipY === false ? [ 0, - 1, 0, 1, 2, 1 ] : [ 0, 2, 0, 0, 2, 0 ];
+
+		this.setAttribute( 'position', new Float32BufferAttribute( [ - 1, 3, 0, - 1, - 1, 0, 3, - 1, 0 ], 3 ) );
+		this.setAttribute( 'uv', new Float32BufferAttribute( uv, 2 ) );
+
+	}
+
+}
+
+const _geometry = new QuadGeometry();
+
+class QuadMesh extends Mesh {
+
+	constructor( material = null ) {
+
+		super( _geometry, material );
+
+		this.camera = _camera;
+
+	}
+
+	renderAsync( renderer ) {
+
+		return renderer.renderAsync( this, _camera );
+
+	}
+
+	render( renderer ) {
+
+		renderer.render( this, _camera );
+
+	}
+
+}
+
+export default QuadMesh;