1 年之前 · 5f25bd33c4
--- a/examples/index.html
+++ b/examples/index.html
        <h2 class="category">Experiments</h2>
        <ul>
            <li><a href="./progressive-hdr-shadows-exp/">Progressive HDR Environment Shadows</a></li>
            <li><a href="./multi-render-uv-clip/">Multi-render UV clipping <br/> (Material Extension) </a></li>
            <li><a href="./svg-geometry-playground/">SVG Geometry Playground </a></li>
        </ul>
        <h2 class="category">UI Config</h2>
--- a/examples/multi-render-uv-clip/index.html
+++ b/examples/multi-render-uv-clip/index.html
 <!DOCTYPE html>
 <html lang="en">
 <head>
    <meta charset="UTF-8">
    <title>Multi-Render UV Clipping</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- Import maps polyfill -->
    <!-- Remove this when import maps will be widely supported -->
    <script async src="https://unpkg.com/es-module-shims@1.6.3/dist/es-module-shims.js"></script>
    <script type="importmap">
    {
        "imports": {
          "threepipe": "./../../dist/index.mjs",
          "@threepipe/plugin-tweakpane": "./../../plugins/tweakpane/dist/index.mjs"
        }
    }
    </script>
    <style id="example-style">
        html, body, #canvas-container, #mcanvas {
            width: 100%;
            height: 100%;
            margin: 0;
            overflow: hidden;
        }
    </style>
    <script type="module" src="../examples-utils/simple-code-preview.mjs"></script>
    <script id="example-script" type="module" src="./script.js" data-scripts="./script.ts;./script.js"></script>
 </head>
 <body>
 <div id="canvas-container">
    <canvas id="mcanvas"></canvas>
 </div>
 </body>
--- a/examples/multi-render-uv-clip/script.ts
+++ b/examples/multi-render-uv-clip/script.ts
 import {
    _testFinish,
    IObject3D,
    LoadingScreenPlugin,
    PhysicalMaterial,
    shaderReplaceString,
    ThreeViewer, Vector2,
 } from 'threepipe'
 import {TweakpaneUiPlugin} from '@threepipe/plugin-tweakpane'
 async function init() {
    const viewer = new ThreeViewer({
        canvas: document.getElementById('mcanvas') as HTMLCanvasElement,
        msaa: true,
        plugins: [LoadingScreenPlugin],
    })
    const ui = viewer.addPluginSync(new TweakpaneUiPlugin(true))
    await viewer.setEnvironmentMap('https://threejs.org/examples/textures/equirectangular/venice_sunset_1k.hdr', {
        setBackground: true,
    })
    const result = await viewer.load<IObject3D>('https://threejs.org/examples/models/gltf/DamagedHelmet/glTF/DamagedHelmet.gltf', {
        autoCenter: true,
        autoScale: true,
    })
    const testMat = await viewer.load<PhysicalMaterial>('https://packs.ijewel3d.com/files/metal_whitegold_brush_3_08d4d2ad61.pmat?tp')
    const model = result?.getObjectByName('node_damagedHelmet_-6514')
    if (!model || !testMat) {
        alert('Model or material not found')
        return
    }
    testMat.color.set(0x00ff00)
    const model2 = model.clone()
    model2.material = testMat
    model.parent!.add(model2)
    const clipVec = new Vector2(0.3, 0.5)
    ui.appendChild({
        type: 'slider',
        bounds: [0, 1],
        label: 'Clip UV X',
        property: [clipVec, 'x'],
        onChange: ()=>{
            model.materials![0].setDirty()
            testMat.setDirty()
        },
    })
    model.materials![0].registerMaterialExtensions([{
        extraUniforms: {
            clipVec: {value: clipVec},
        },
        parsFragmentSnippet: 'uniform vec2 clipVec;',
        shaderExtender: (shader)=>{
            shader.fragmentShader = shaderReplaceString(shader.fragmentShader, 'void main() {', `
            if(vUv.x > clipVec.x) discard;
            `, {append: true})
            shader.defines.USE_UV = ''
        },
        isCompatible: (mat)=>(mat as any).isMeshStandardMaterial,
        computeCacheKey: ()=>clipVec.x + ' ' + clipVec.y,
    }])
    testMat.registerMaterialExtensions([{
        extraUniforms: {
            clipVec: {value: clipVec},
        },
        parsFragmentSnippet: 'uniform vec2 clipVec;',
        shaderExtender: (shader)=>{
            shader.fragmentShader = shaderReplaceString(shader.fragmentShader, 'void main() {', `
            if(vUv.x < clipVec.x) discard;
            `, {append: true})
            shader.defines.USE_UV = ''
        },
        isCompatible: (mat)=>(mat as any).isMeshStandardMaterial,
        computeCacheKey: ()=>clipVec.x + ' ' + clipVec.y,
    }])
 }
 init().finally(_testFinish)