diff --git a/gui.js b/gui.js
index 410084a..08a7bdd 100644
--- a/gui.js
+++ b/gui.js
@@ -6,14 +6,14 @@ const DEFAULTS = {
 	nodesize: 1.25,
 	linkopacity: 0.5,
 	link2opacity: 0.5,
-	shape: '',
-	option: '',
+	shape: '120-cell',
+	option: 'none',
 	visibility: 5,
 	inscribed: false,
 	inscribe_all: false,
 	color: 0x3293a9,
 	background: 0xd4d4d4,
-	hyperplane: 2,
+	hyperplane: 1.5,
 	rotation: 'rigid',
 	dtheta: 0,
 	dpsi: 0,
@@ -26,9 +26,6 @@ class FourDGUI {
 	constructor(shapes, changeShape, setColor, setBackground, setLinkOpacity, setVisibility) {
 		this.gui = new GUI();
 		const SHAPE_NAMES = shapes.map((s) => s.name);
-		// set default shape + option from the first shape
-		DEFAULTS.shape = shapes[0].name;
-		DEFAULTS.option = shapes[0].options[0].name;
 
 		this.parseLinkParams();
 		const guiObj = this;
@@ -64,7 +61,7 @@ class FourDGUI {
 		options_ctrl = this.gui.add(this.params, 'option', options).onChange((option) => {
 			setVisibility(option)
 		});
-		this.gui.add(this.params, 'hyperplane', 1.5, 2.25);
+		this.gui.add(this.params, 'hyperplane', 1.4, 2.4);
 		this.gui.add(this.params, 'thickness', 0.1, 2);
 		this.gui.add(this.params, 'linkopacity', 0, 1).onChange(
 			(v) => setLinkOpacity(v, true)
diff --git a/main.js b/main.js
index 891f3ad..02ba6dc 100644
--- a/main.js
+++ b/main.js
@@ -9,6 +9,7 @@ import { FourDShape } from './fourDShape.js';
 import { get_colours } from './colours.js';
 
 const FACE_OPACITY = 0.3;
+const CAMERA_K = 10;
 
 // scene, lights and camera
 
@@ -23,7 +24,7 @@ scene.add(light);
 const amblight = new THREE.AmbientLight(0xffffff, 0.5);
 scene.add(amblight);
 
-camera.position.set(0, 0, 4);
+camera.position.set(0, 0, CAMERA_K / 2);
 
 camera.lookAt(0, 0, 0);
 //camera.position.z = 4;
@@ -132,7 +133,6 @@ function setVisibility(option_name) {
 }
 
 
-
 gui = new FourDGUI(
 	STRUCTURES,
 	changeShape,
@@ -200,10 +200,14 @@ function animate() {
 	const rotations = get_rotation(gui.params.rotation, theta, psi);
 
 	shape.hyperplane = gui.params.hyperplane;
+	camera.position.set(0, 0, CAMERA_K / gui.params.hyperplane);
+
 	shape.link_scale = gui.params.thickness;
 	shape.node_scale = gui.params.nodesize;
 	shape.render3(rotations, node_show, link_show);
 
+
+
 	renderer.render( scene, camera );
 }
 animate();