threejs打造三维多彩峡谷穿梭效果-html代码-BFW代码库

代码语言：html

所属分类：三维

代码描述：threejs打造三维多彩峡谷穿梭效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">

    <style>
        body {
            color: #ffffff;
            font-family: Monospace;
            font-size: 13px;
            text-align: center;
            font-weight: bold;
            background-color: #000;
            margin: 0px;
            overflow: hidden;
        }

        #info, #controls {
            position: absolute;
            width: 100%;
            padding: 5px;
            background: rgba(0, 0, 0, 0.4);
        }

        #info {
            top: 0;
        }

        #controls {
            bottom: 0;
        }

        a {
            color: #ffffff;
            -webkit-transition: 150ms all;
            transition: 150ms all;
        }
        a:hover, a:focus {
            color: #ffc107;
        }

        .stats-element {
            position: absolute;
            right: 0;
            top: 0;
        }

        .audio-embed {
            position: absolute;
            left: 0;
            bottom: 100%;
            border: 0;
        }
        #hide-audio:checked + .audio-embed {
            opacity: 0;
        }
    </style>

</head>
<body translate="no">
    <script id="vertexShader" type="x-shader/x-vertex">
        attribute vec3 center;
        uniform float uTime;
        varying float vDisp;
        varying vec3 vCenter;
        varying vec2 vSceneYZ;

        #define PULSE_TIME 1.16

        void main() {
            vCenter = center;
            vDisp = max(
                max(0., 1.-pow(3.*abs(uv.y-fract(-uTime*PULSE_TIME)+0.5), 0.5)),
                1.-pow(3.*abs(uv.y-fract(-uTime*PULSE_TIME)-0.5), 0.5)
            );
            // FIXME - magic numbers in displacement calculation
            vec4 scenePosition = modelViewMatrix*vec4(position+vec3(0., 1., 0.)*2.5*vDisp, 1.);
            vSceneYZ = scenePosition.yz;
            gl_Position = projectionMatrix*scenePosition;
        }
    </script>
    <script id="fragmentShader" type="x-shader/x-fragment">
        uniform float uResolutionScale;
        varying float vDisp;
        varying vec3 vCenter;
        varying vec2 vSceneYZ;

        #define PI 3.14159265359
        #define WIREFRAME_WIDTH 2.5

        // adapted from https://github.com/mrdoob/three.js/blob/dev/examples/webgl_materials_wireframe.html for wireframe effect
        float edgeFactorTri() {
            vec3 a3 = smoothstep(vec3(0.), fwidth(vCenter.xyz)*WIREFRAME_WIDTH/uResolutionScale, vCenter.xyz);
            return min(min(a3.x, a3.y), a3.z);
        }

        void main(void) {
            if (edgeFactorTri() > 0.98) discard;
            vec3 color = mix(
                mix(
                    mix(
                        vec3(1., 0., 0.6), // magenta base
                        vec3(1., 0.9, .0), min(1.9, vDisp) // yellow pulse
                    ),
                    vec3(1.), max(0., (vSceneYZ.s-20.) / 120.) // lighter on top; FIXME - magic numbers with Y position
                ),
                vec3(0.), max(0., min(1., (-vSceneYZ.t - 80.) / 80.)) // fade to black; FIXME - magic numbers with Z position
            );
            gl_FragColor = gl_FrontFacing ?
            vec4(color, 1.0):
            vec4(color, 0.5);
        }
    </script>
    <div id="container"></div>
    <div id="info">
        Synth Canyon Run - with <a href="https://threejs.org" target="_blank">three.js</a>
    </div>
    <div id="controls">
        <label for="resolution">resolution: </label>
        <select id="resolution" value="2">
            <option value="0.5">0.5x</option>
            <option value="1" selected>1x</option>
            <option value="2">2x</option>
            <option value="4">4x</option>
            <option value="8">8x</option>
        </select>


    </div>
    <script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/three.109.js"></script>
    <script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/stats-min.js"></script>
    <script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/simplex-noise.min.js"></script>
    <script src='http://repo.bfw.wiki/bfwrepo/js/RenderPass.110.js'></script>
    <script src='http://repo.bfw.wiki/bfwrepo/js/EffectComposer.110.js'></script>
    <script src='http://repo.bfw.wiki/bfwrepo/js/UnrealBloomPass.110.js'></script>
    <script>
        const SHOW_STATS = false;
        const CANYON_WIDTH = 400;
        const CANYON_LENGTH = 120;
        const CANYON_SEGMENTS_W = 27;
        const CANYON_SEGMENTS_L = 10;
        const CLIFF_BASE = 60;
        const CLIFF_VARY = 15;
        const FLOOR_VARY = 10;
        const CANYON_SPEED = 70;
        const CAMERA_DRIFT_DISTANCE = 15;
        const CAMERA_DRIFT_SPEED = 0.05;

        let lastUpdate;
        let camera, scene, renderer, composer;
        let cameraBaseX, cameraBaseY;
        let uResolutionScale;
        let uTime;
        let canyonA, canyonB;

        function init() {
            // stats
            if (SHOW_STATS) {
                const stats = new Stats();
                stats.domElement.classList.add('stats-element');
                document.body.appendChild(stats.domElement);
                requestAnimationFrame(function updateStats() {
                    stats.update();
                    requestAnimationFrame(updateStats);
                });
            }

            // basic setup
            const container = document.getElementById('container');
            camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 1, 300);
            const cameraDistance = 70;
            const cameraAngle = .05 * Math.PI;
            camera.positi.........完整代码请登录后点击上方下载按钮下载查看