diff --git a/src/index.ts b/src/index.ts
index 20dc4119c..7a51db615 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -9,10 +9,9 @@ import { RGBELoader } from "three/examples/jsm/loaders/RGBELoader";
 //import { EffectComposer } from 'three/examples/jsm/postprocessing/EffectComposer';
 //import { UnrealBloomPass } from 'three/examples/jsm/postprocessing/UnrealBloomPass';
 //import { RenderPass } from "three/examples/jsm/postprocessing/RenderPass";
+// https://github.com/pmndrs/postprocessing
 import { BloomEffect, EffectComposer, EffectPass, RenderPass } from "postprocessing";
 
-
-
 window.addEventListener("DOMContentLoaded", () => {
 
 	// vrma
@@ -124,33 +123,6 @@ window.addEventListener("DOMContentLoaded", () => {
 	controls.enableRotate = true;
 	controls.target.set( 0.0, 1.0, 0.0 );
 
-	function floor_default(){
-		scene.background = new THREE.Color(0xffffff);
-		const directionalLight = new THREE.DirectionalLight(0xffffff);
-		directionalLight.position.set(1, 1, 1);
-
-		scene.add(directionalLight);
-		const ambientLight = new THREE.AmbientLight(0x333333);
-		scene.add(ambientLight);
-
-		let floor = new Mesh(
-			new BoxGeometry(50, 100),
-			new MeshLambertMaterial({
-				color: 0xffffff,
-				depthWrite: true,
-			})
-		);
-		floor.position.y = -1.0;
-		floor.rotation.x = -Math.PI / 2;
-		scene.add(floor);
-
-		const grid = new GridHelper(50, 100, 0xffffff, 0xffffff);
-		scene.add(grid);
-		grid.position.set(Math.round(0), 0, Math.round(0));
-		scene.fog = new Fog(0xffffff, 3, 20);
-		scene.fog?.color.set(0xffffff);
-	}
-
 	//scene.background = new THREE.Color(0xffffff);
 	const directionalLight = new THREE.DirectionalLight(0xffffff);
 	directionalLight.position.set(1, 1, 1);
@@ -179,7 +151,6 @@ window.addEventListener("DOMContentLoaded", () => {
 		camera.updateProjectionMatrix();
 	}
 
-	// https://github.com/pmndrs/postprocessing
 	let composer = new EffectComposer(renderer, {
 		frameBufferType: HalfFloatType
 	});