Psico/3dwater.html at main · ivansouza/Psico · GitHub

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<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Water Ripple - Orbit & Touch</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: #000;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
            user-select: none;
        }
        #info {
            position: absolute;
            top: 20px;
            left: 20px;
            color: white;
            pointer-events: none;
            z-index: 10;
            text-shadow: 0 2px 4px rgba(0,0,0,0.8);
        }
        canvas {
            display: block;
            touch-action: none;
        }
        #loading {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: #050505;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            z-index: 100;
            transition: opacity 0.5s;
            text-align: center;
            padding: 20px;
        }
    </style>
</head>
<body>
    <div id="loading">
        <div id="status-text">A configurar controlos 3D...</div>
    </div>

    <div id="info">
        <h1 style="margin:0; font-size: 1.2rem;">Água 3D Interativa</h1>
        <p style="font-size: 0.8rem; opacity: 0.8;">Arraste para Rodar | Pinça/Roda para Zoom</p>
    </div>

    <script type="importmap">
        {
            "imports": {
                "three": "https://cdn.jsdelivr.net/npm/three@0.171.0/build/three.webgpu.js",
                "three/webgpu": "https://cdn.jsdelivr.net/npm/three@0.171.0/build/three.webgpu.js",
                "three/tsl": "https://cdn.jsdelivr.net/npm/three@0.171.0/build/three.tsl.js",
                "three/addons/": "https://cdn.jsdelivr.net/npm/three@0.171.0/examples/jsm/"
            }
        }
    </script>

    <script type="module">
        import * as THREE from 'three';
        import { tslFn, uniform, uv, vec3, sin, time, float, mix, step } from 'three/tsl';
        import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

        let renderer, scene, camera, mesh, controls;
        let raycaster, pointerMesh;

        const uPointer = uniform(new THREE.Vector2(0.5, 0.5));
        const mouseCoords = new THREE.Vector2(-1, -1);

        async function init() {
            try {
                renderer = new THREE.WebGPURenderer({ antialias: true });
                await renderer.init();

                renderer.setPixelRatio(window.devicePixelRatio);
                renderer.setSize(window.innerWidth, window.innerHeight);
                document.body.appendChild(renderer.domElement);

                scene = new THREE.Scene();
                scene.background = new THREE.Color(0x010204);

                camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 100);
                camera.position.set(0, 8, 12); // Vista angular para melhor percepção 3D

                // Adicionar OrbitControls (Orbit, Zoom, Pinch)
                controls = new OrbitControls(camera, renderer.domElement);
                controls.enableDamping = true; // Suaviza o movimento
                controls.dampingFactor = 0.05;
                controls.minDistance = 5;
                controls.maxDistance = 25;

                raycaster = new THREE.Raycaster();

                // Material TSL
                const material = new THREE.MeshBasicNodeMaterial({ side: THREE.DoubleSide });

                const waterEffect = tslFn(() => {
                    const st = uv();
                    const dist = st.distance(uPointer);

                    const freq = 30.0;
                    const speed = 5.0;
                    const wave = sin(dist.mul(freq).sub(time.mul(speed))).mul(0.08);

                    const radius = 0.5;
                    const falloff = step(dist, radius).mul(float(1.0).sub(dist.div(radius)));
                    const ripple = wave.mul(falloff);

                    const colorDeep = vec3(0.01, 0.08, 0.2);
                    const colorWave = vec3(0.0, 0.9, 1.0);

                    return mix(colorDeep, colorWave, ripple.add(0.2));
                });

                material.colorNode = waterEffect();

                // Plano da Água
                const size = 20;
                const geometry = new THREE.PlaneGeometry(size, size);
                mesh = new THREE.Mesh(geometry, material);
                mesh.rotation.x = -Math.PI / 2; // Deitar o plano horizontalmente
                scene.add(mesh);

                // Remover loading
                document.getElementById('loading').style.opacity = '0';
                setTimeout(() => document.getElementById('loading').remove(), 500);

                window.addEventListener('resize', onWindowResize);
                window.addEventListener('pointermove', onPointerMove);
                window.addEventListener('pointerdown', onPointerMove);

                renderer.setAnimationLoop(render);

            } catch (err) {
                console.error(err);
                document.getElementById('status-text').innerText = "Erro ao carregar WebGPU/WebGL.";
            }
        }

        function onPointerMove(event) {
            // Coordenadas normalizadas (-1 a +1) para o Raycaster
            mouseCoords.x = (event.clientX / window.innerWidth) * 2 - 1;
            mouseCoords.y = -(event.clientY / window.innerHeight) * 2 + 1;

            updateRipplePosition();
        }

        function updateRipplePosition() {
            if (!mesh) return;

            raycaster.setFromCamera(mouseCoords, camera);
            const intersects = raycaster.intersectObject(mesh);

            if (intersects.length > 0) {
                // Obtemos o ponto de intersecção e convertemos para UV (0 a 1)
                // Como o plano tem 20 unidades e está centrado em 0,0:
                const hitPoint = intersects[0].point;
                const uvX = (hitPoint.x / 20) + 0.5;
                const uvZ = (hitPoint.z / 20) + 0.5; // Usamos Z porque o plano foi rodado

                uPointer.value.set(uvX, uvZ);
            }
        }

        function onWindowResize() {
            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();
            renderer.setSize(window.innerWidth, window.innerHeight);
        }

        function render() {
            controls.update(); // Necessário para o damping das OrbitControls

            // Atualiza a intersecção mesmo se o rato não mexer (caso a câmara rode)
            updateRipplePosition();

            renderer.render(scene, camera);
        }

        init();
    </script>
</body>
</html>