<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Babylon.js - Interactive Spheres Scene (v7 - Fine-tuned Controls)</title>
<script src="https://preview.babylonjs.com/babylon.js"></script>
<style>
html, body {
overflow: hidden;
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
#renderCanvas {
width: 100%;
height: 100%;
touch-action: none;
}
</style>
</head>
<body>
<canvas id="renderCanvas"></canvas>
<script>
window.addEventListener('DOMContentLoaded', function() {
const canvas = document.getElementById('renderCanvas');
const engine = new BABYLON.Engine(canvas, true, { preserveDrawingBuffer: true, stencil: true });
const createScene = async function() {
const scene = new BABYLON.Scene(engine);
scene.clearColor = new BABYLON.Color3.FromHexString("#ECECEC");
const pcCamera = new BABYLON.UniversalCamera("pcCamera", new BABYLON.Vector3(0, 1.6, 5), scene);
pcCamera.setTarget(BABYLON.Vector3.Zero());
pcCamera.attachControl(canvas, true);
pcCamera.speed = 0.15;
pcCamera.keysUp = [87, 38]; pcCamera.keysDown = [83, 40];
pcCamera.keysLeft = [65, 37]; pcCamera.keysRight = [68, 39];
pcCamera.angularSensibility = 2000;
const ambientLight = new BABYLON.HemisphericLight("ambientLight", new BABYLON.Vector3(0, 1, 0), scene);
ambientLight.intensity = 0.8;
const directionalLight = new BABYLON.DirectionalLight("dirLight", new BABYLON.Vector3(-1, 1.5, 1), scene);
directionalLight.intensity = 0.8;
const panelWidth = 2.5; const panelHeight = 1.2; const infoPanel = BABYLON.MeshBuilder.CreatePlane("infoPanel", { width: panelWidth, height: panelHeight }, scene); infoPanel.material = new BABYLON.StandardMaterial("panelMat", scene); infoPanel.material.backFaceCulling = false; infoPanel.billboardMode = BABYLON.Mesh.BILLBOARDMODE_ALL; infoPanel.isVisible = false; const textureResolution = 512; const panelTexture = new BABYLON.DynamicTexture("panelTexture", { width: textureResolution, height: Math.round(textureResolution * (panelHeight / panelWidth))}, scene, true); infoPanel.material.diffuseTexture = panelTexture; infoPanel.material.emissiveColor = new BABYLON.Color3(0.2, 0.2, 0.2); function updatePanelText(text) { const ctx = panelTexture.getContext(); const size = panelTexture.getSize(); const fontSize = 28; const font = `bold ${fontSize}px sans-serif`; const lines = text.split('\n'); ctx.fillStyle = "#333333"; ctx.fillRect(0, 0, size.width, size.height); ctx.font = font; ctx.fillStyle = "white"; lines.forEach((line, index) => { const y = 50 + index * (fontSize + 15); ctx.fillText(line, 25, y); }); panelTexture.update(); } const numSpheres = 30; const spread = 20; for (let i = 0; i < numSpheres; i++) { const radius = Math.random() * 0.4 + 0.2; const sphere = BABYLON.MeshBuilder.CreateSphere(`sphere${i}`, { diameter: radius * 2 }, scene); const x = (Math.random() - 0.5) * spread; const y = Math.random() * (spread / 2) + radius; const z = (Math.random() - 0.5) * spread; sphere.position = new BABYLON.Vector3(x, y, z); sphere.material = new BABYLON.StandardMaterial(`mat${i}`, scene); const hue = Math.random() * 360; const saturation = 0.7; const value = 0.95; sphere.material.diffuseColor = BABYLON.Color3.FromHSV(hue, saturation, value); sphere.metadata = { info: `球 ${i + 1}\n色: HSV(${Math.round(hue)}, ${Math.round(saturation*100)}%, ${Math.round(value*100)}%)\n半径: ${radius.toFixed(2)}`};} scene.onPointerDown = function (evt, pickResult) { if (pickResult.hit && pickResult.pickedMesh && pickResult.pickedMesh.metadata) { const clickedSphere = pickResult.pickedMesh; const targetWorldPosition = clickedSphere.getWorldMatrix().getTranslation(); const cameraWorldPosition = scene.activeCamera.globalPosition; const sphereRadius = clickedSphere.getBoundingInfo().boundingSphere.radius; const offsetDistance = sphereRadius + 0.8; const direction = cameraWorldPosition.subtract(targetWorldPosition).normalize(); const panelPosition = targetWorldPosition.add(direction.scale(offsetDistance)); infoPanel.position.copyFrom(panelPosition); updatePanelText(clickedSphere.metadata.info); infoPanel.isVisible = true; } else { infoPanel.isVisible = false; } };
const xr = await scene.createDefaultXRExperienceAsync({});
xr.baseExperience.onStateChangedObservable.add((state) => {
if (state === BABYLON.WebXRState.IN_XR) {
pcCamera.detachControl();
} else if (state === BABYLON.WebXRState.NOT_IN_XR) {
pcCamera.attachControl(canvas, true);
}
});
scene.onBeforeRenderObservable.add(() => {
if (xr.baseExperience.state !== BABYLON.WebXRState.IN_XR) return;
const deltaMillis = engine.getDeltaTime();
const xrCamera = xr.baseExperience.camera;
const leftController = xr.input.controllers.find(c => c.inputSource.handedness === 'left');
if (leftController?.motionController) {
const thumbstick = leftController.motionController.getComponent("xr-standard-thumbstick");
if (thumbstick?.axes) {
// ★★★ 修正点1: 移動速度を調整 (2.0 -> 1.2) ★★★
const moveSpeed = 1.2 * deltaMillis / 1000;
const forward = xrCamera.getDirection(BABYLON.Vector3.Forward());
forward.y = 0;
xrCamera.position.addInPlace(forward.normalize().scale(-thumbstick.axes.y * moveSpeed));
const right = xrCamera.getDirection(BABYLON.Vector3.Right());
xrCamera.position.addInPlace(right.scale(thumbstick.axes.x * moveSpeed));
}
}
const rightController = xr.input.controllers.find(c => c.inputSource.handedness === 'right');
if (rightController?.motionController) {
const thumbstick = rightController.motionController.getComponent("xr-standard-thumbstick");
if (thumbstick?.axes) {
const- rotationThreshold = 0.2;
if (Math.abs(thumbstick.axes.x) > rotationThreshold) {
// ★★★ 修正点2: 回転速度を調整 (0.7 -> 0.4) ★★★
const rotSpeed = 0.4 * deltaMillis / 1000;
if (xrCamera.parent) {
xrCamera.parent.rotate(BABYLON.Vector3.Up(), thumbstick.axes.x * rotSpeed, BABYLON.Space.WORLD);
}
}
if (Math.abs(thumbstick.axes.y) > rotationThreshold) {
const verticalSpeed = 2.0 * deltaMillis / 1000;
xrCamera.position.y += -thumbstick.axes.y * verticalSpeed;
}
}
}
});
return scene;
};
createScene().then(scene => {
engine.runRenderLoop(() => scene.render());
window.addEventListener('resize', () => engine.resize());
});
});
</script>
</body>
</html>
使用変数
| ) { const scene = new BABYLON.Scene -------( Function ) | |
| ) { const canvas = document.getElementById -------( Function ) | |
| ambientLight | |
| ameraWorldPosition | |
| angularSensibility | |
| argetWorldPosition | |
| backFaceCulling | |
| billboardMode | |
| c | |
| canvas | |
| charset | |
| clearColor | |
| clickedSphere | |
| createScene | |
| ctx | |
| deltaMillis | |
| diffuseColor | |
| diffuseTexture | |
| direction | |
| directionalLight | |
| emissiveColor | |
| engine | |
| fillStyle | |
| font | |
| fontSize | |
| forward | |
| handedness | |
| hue | |
| i | |
| id | |
| infoPanel | |
| intensity | |
| isVisible | |
| keysDown | |
| keysLeft | |
| keysRight | |
| keysUp | |
| leftController | |
| lines | |
| material | |
| metadata | |
| moveSpeed | |
| numSpheres | |
| offsetDistance | |
| onPointerDown | |
| panelHeight | |
| panelPosition | |
| panelTexture | |
| panelWidth | |
| pcCamera | |
| position | |
| radius | |
| right | |
| rightController | |
| rotationThreshold | |
| rotSpeed | |
| saturation | |
| scene | |
| size | |
| speed | |
| sphere | |
| sphereRadius | |
| spread | |
| src | |
| state | |
| textureResolution | |
| thumbstick | |
| updatePanelText -------( Function ) | |
| value | |
| verticalSpeed | |
| x | |
| xr | |
| xrCamera | |
| y | |
| z |