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往场景里放东西（物体、灯光）→ 架好相机 → 渲染器拍照并输出画面\n","text",[1677,1788,1785],{"__ignoreMap":1675},[1535,1790],{},[1526,1792,1794],{"id":1793},"第一个-3d-场景","🛠 第一个 3D 场景",[1531,1796,1797],{},"目标：在页面上渲染一个绿色的立方体。",[1670,1799,1804],{"className":1800,"code":1801,"filename":1802,"language":1803,"meta":1675,"style":1675},"language-vue shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","\u003Ctemplate>\n    \u003Cdiv ref=\"containerRef\" class=\"container\">\u003C/div>\n\u003C/template>\n\n\u003Cscript setup>\nimport { onMounted, ref } from 'vue';\nimport * as THREE from 'three';\n\nconst containerRef = ref(null);\n\nonMounted(() => {\n    // 1. 创建场景（摄影棚）\n    const scene = new THREE.Scene();\n\n    // 2. 创建相机（摄像机）：透视相机，四个参数后面篇章详解\n    const camera = new THREE.PerspectiveCamera(75, 320 / 240, 0.1, 1000);\n    camera.position.z = 5; // 相机往后退 5 个单位，否则贴着物体看不清\n\n    // 3. 创建立方体：几何体（形状）+ 材质（皮肤）= 网格（演员）\n    const geometry = new THREE.BoxGeometry(1, 1, 1);\n    const material = new THREE.MeshStandardMaterial({ color: 0x44aa88 });\n    const cube = new THREE.Mesh(geometry, material);\n    cube.rotation.set(0.6, 0.8, 0); // 转个角度，才能看出立体感\n    scene.add(cube);\n\n    // 4. 加两盏灯：环境光打底 + 平行光制造明暗（灯光后面篇章详解）\n    scene.add(new THREE.AmbientLight(0xffffff, 0.5));\n    const directionalLight = new THREE.DirectionalLight(0xffffff, 1.5);\n    directionalLight.position.set(3, 5, 4);\n    scene.add(directionalLight);\n\n    // 5. 创建渲染器（放映机），设置画幅大小后挂到页面上\n    const renderer = new THREE.WebGLRenderer({ antialias: true });\n    renderer.setSize(320, 240);\n    containerRef.value.appendChild(renderer.domElement);\n\n    // 6. 拍照：把相机看到的场景画到 canvas 上\n    renderer.render(scene, camera);\n});\n\u003C/script>\n\n\u003Cstyle scoped>\n.container {\n    width: 320px;\n    height: 240px;\n}\n\u003C/style>\n","views/FirstScene.vue","vue",[1677,1805,1806,1818,1861,1871,1878,1891,1921,1942,1947,1972,1977,1994,2001,2029,2034,2040,2090,2117,2122,2128,2165,2204,2236,2274,2294,2299,2305,2341,2373,2405,2423,2428,2434,2472,2496,2526,2531,2537,2560,2570,2579,2584,2597,2606,2620,2633,2639],{"__ignoreMap":1675},[1680,1807,1808,1811,1815],{"class":1682,"line":1683},[1680,1809,1810],{"class":1713},"\u003C",[1680,1812,1814],{"class":1813},"sd2Uz","template",[1680,1816,1817],{"class":1713},">\n",[1680,1819,1821,1824,1827,1831,1834,1837,1840,1842,1845,1847,1849,1852,1854,1857,1859],{"class":1682,"line":1820},2,[1680,1822,1823],{"class":1713},"    \u003C",[1680,1825,1826],{"class":1813},"div",[1680,1828,1830],{"class":1829},"s50WR"," ref",[1680,1832,1833],{"class":1713},"=",[1680,1835,1836],{"class":1713},"\"",[1680,1838,1839],{"class":1690},"containerRef",[1680,1841,1836],{"class":1713},[1680,1843,1844],{"class":1829}," 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onMounted",[1680,1903,1904],{"class":1713},",",[1680,1906,1830],{"class":1720},[1680,1908,1909],{"class":1713}," }",[1680,1911,1912],{"class":1709}," from",[1680,1914,1727],{"class":1713},[1680,1916,1803],{"class":1690},[1680,1918,1733],{"class":1713},[1680,1920,1736],{"class":1713},[1680,1922,1924,1926,1928,1930,1932,1934,1936,1938,1940],{"class":1682,"line":1923},7,[1680,1925,1710],{"class":1709},[1680,1927,1714],{"class":1713},[1680,1929,1717],{"class":1709},[1680,1931,1721],{"class":1720},[1680,1933,1724],{"class":1709},[1680,1935,1727],{"class":1713},[1680,1937,1730],{"class":1690},[1680,1939,1733],{"class":1713},[1680,1941,1736],{"class":1713},[1680,1943,1945],{"class":1682,"line":1944},8,[1680,1946,1877],{"emptyLinePlaceholder":1876},[1680,1948,1950,1953,1956,1958,1961,1964,1967,1970],{"class":1682,"line":1949},9,[1680,1951,1952],{"class":1829},"const",[1680,1954,1955],{"class":1720}," containerRef ",[1680,1957,1833],{"class":1713},[1680,1959,1830],{"class":1960},"swgpB",[1680,1962,1963],{"class":1720},"(",[1680,1965,1966],{"class":1713},"null",[1680,1968,1969],{"class":1720},")",[1680,1971,1736],{"class":1713},[1680,1973,1975],{"class":1682,"line":1974},10,[1680,1976,1877],{"emptyLinePlaceholder":1876},[1680,1978,1980,1983,1985,1988,1991],{"class":1682,"line":1979},11,[1680,1981,1982],{"class":1960},"onMounted",[1680,1984,1963],{"class":1720},[1680,1986,1987],{"class":1713},"()",[1680,1989,1990],{"class":1829}," =>",[1680,1992,1993],{"class":1713}," {\n",[1680,1995,1997],{"class":1682,"line":1996},12,[1680,1998,2000],{"class":1999},"syuKq","    // 1. 创建场景（摄影棚）\n",[1680,2002,2004,2007,2010,2013,2016,2019,2022,2025,2027],{"class":1682,"line":2003},13,[1680,2005,2006],{"class":1829},"    const",[1680,2008,2009],{"class":1720}," scene",[1680,2011,2012],{"class":1713}," =",[1680,2014,2015],{"class":1713}," new",[1680,2017,2018],{"class":1720}," THREE",[1680,2020,2021],{"class":1713},".",[1680,2023,2024],{"class":1960},"Scene",[1680,2026,1987],{"class":1813},[1680,2028,1736],{"class":1713},[1680,2030,2032],{"class":1682,"line":2031},14,[1680,2033,1877],{"emptyLinePlaceholder":1876},[1680,2035,2037],{"class":1682,"line":2036},15,[1680,2038,2039],{"class":1999},"    // 2. 创建相机（摄像机）：透视相机，四个参数后面篇章详解\n",[1680,2041,2043,2045,2048,2050,2052,2054,2056,2059,2061,2065,2067,2070,2073,2076,2078,2081,2083,2086,2088],{"class":1682,"line":2042},16,[1680,2044,2006],{"class":1829},[1680,2046,2047],{"class":1720}," camera",[1680,2049,2012],{"class":1713},[1680,2051,2015],{"class":1713},[1680,2053,2018],{"class":1720},[1680,2055,2021],{"class":1713},[1680,2057,2058],{"class":1960},"PerspectiveCamera",[1680,2060,1963],{"class":1813},[1680,2062,2064],{"class":2063},"smPcV","75",[1680,2066,1904],{"class":1713},[1680,2068,2069],{"class":2063}," 320",[1680,2071,2072],{"class":1713}," /",[1680,2074,2075],{"class":2063}," 240",[1680,2077,1904],{"class":1713},[1680,2079,2080],{"class":2063}," 0.1",[1680,2082,1904],{"class":1713},[1680,2084,2085],{"class":2063}," 1000",[1680,2087,1969],{"class":1813},[1680,2089,1736],{"class":1713},[1680,2091,2093,2096,2098,2101,2103,2106,2108,2111,2114],{"class":1682,"line":2092},17,[1680,2094,2095],{"class":1720},"    camera",[1680,2097,2021],{"class":1713},[1680,2099,2100],{"class":1720},"position",[1680,2102,2021],{"class":1713},[1680,2104,2105],{"class":1720},"z",[1680,2107,2012],{"class":1713},[1680,2109,2110],{"class":2063}," 5",[1680,2112,2113],{"class":1713},";",[1680,2115,2116],{"class":1999}," // 相机往后退 5 个单位，否则贴着物体看不清\n",[1680,2118,2120],{"class":1682,"line":2119},18,[1680,2121,1877],{"emptyLinePlaceholder":1876},[1680,2123,2125],{"class":1682,"line":2124},19,[1680,2126,2127],{"class":1999},"    // 3. 创建立方体：几何体（形状）+ 材质（皮肤）= 网格（演员）\n",[1680,2129,2131,2133,2136,2138,2140,2142,2144,2147,2149,2152,2154,2157,2159,2161,2163],{"class":1682,"line":2130},20,[1680,2132,2006],{"class":1829},[1680,2134,2135],{"class":1720}," geometry",[1680,2137,2012],{"class":1713},[1680,2139,2015],{"class":1713},[1680,2141,2018],{"class":1720},[1680,2143,2021],{"class":1713},[1680,2145,2146],{"class":1960},"BoxGeometry",[1680,2148,1963],{"class":1813},[1680,2150,2151],{"class":2063},"1",[1680,2153,1904],{"class":1713},[1680,2155,2156],{"class":2063}," 1",[1680,2158,1904],{"class":1713},[1680,2160,2156],{"class":2063},[1680,2162,1969],{"class":1813},[1680,2164,1736],{"class":1713},[1680,2166,2168,2170,2173,2175,2177,2179,2181,2184,2186,2189,2192,2195,2198,2200,2202],{"class":1682,"line":2167},21,[1680,2169,2006],{"class":1829},[1680,2171,2172],{"class":1720}," material",[1680,2174,2012],{"class":1713},[1680,2176,2015],{"class":1713},[1680,2178,2018],{"class":1720},[1680,2180,2021],{"class":1713},[1680,2182,2183],{"class":1960},"MeshStandardMaterial",[1680,2185,1963],{"class":1813},[1680,2187,2188],{"class":1713},"{",[1680,2190,2191],{"class":1813}," color",[1680,2193,2194],{"class":1713},":",[1680,2196,2197],{"class":2063}," 0x44aa88",[1680,2199,1909],{"class":1713},[1680,2201,1969],{"class":1813},[1680,2203,1736],{"class":1713},[1680,2205,2207,2209,2212,2214,2216,2218,2220,2223,2225,2228,2230,2232,2234],{"class":1682,"line":2206},22,[1680,2208,2006],{"class":1829},[1680,2210,2211],{"class":1720}," cube",[1680,2213,2012],{"class":1713},[1680,2215,2015],{"class":1713},[1680,2217,2018],{"class":1720},[1680,2219,2021],{"class":1713},[1680,2221,2222],{"class":1960},"Mesh",[1680,2224,1963],{"class":1813},[1680,2226,2227],{"class":1720},"geometry",[1680,2229,1904],{"class":1713},[1680,2231,2172],{"class":1720},[1680,2233,1969],{"class":1813},[1680,2235,1736],{"class":1713},[1680,2237,2239,2242,2244,2247,2249,2252,2254,2257,2259,2262,2264,2267,2269,2271],{"class":1682,"line":2238},23,[1680,2240,2241],{"class":1720},"    cube",[1680,2243,2021],{"class":1713},[1680,2245,2246],{"class":1720},"rotation",[1680,2248,2021],{"class":1713},[1680,2250,2251],{"class":1960},"set",[1680,2253,1963],{"class":1813},[1680,2255,2256],{"class":2063},"0.6",[1680,2258,1904],{"class":1713},[1680,2260,2261],{"class":2063}," 0.8",[1680,2263,1904],{"class":1713},[1680,2265,2266],{"class":2063}," 0",[1680,2268,1969],{"class":1813},[1680,2270,2113],{"class":1713},[1680,2272,2273],{"class":1999}," // 转个角度，才能看出立体感\n",[1680,2275,2277,2280,2282,2285,2287,2290,2292],{"class":1682,"line":2276},24,[1680,2278,2279],{"class":1720},"    scene",[1680,2281,2021],{"class":1713},[1680,2283,2284],{"class":1960},"add",[1680,2286,1963],{"class":1813},[1680,2288,2289],{"class":1720},"cube",[1680,2291,1969],{"class":1813},[1680,2293,1736],{"class":1713},[1680,2295,2297],{"class":1682,"line":2296},25,[1680,2298,1877],{"emptyLinePlaceholder":1876},[1680,2300,2302],{"class":1682,"line":2301},26,[1680,2303,2304],{"class":1999},"    // 4. 加两盏灯：环境光打底 + 平行光制造明暗（灯光后面篇章详解）\n",[1680,2306,2308,2310,2312,2314,2316,2319,2321,2323,2326,2328,2331,2333,2336,2339],{"class":1682,"line":2307},27,[1680,2309,2279],{"class":1720},[1680,2311,2021],{"class":1713},[1680,2313,2284],{"class":1960},[1680,2315,1963],{"class":1813},[1680,2317,2318],{"class":1713},"new",[1680,2320,2018],{"class":1720},[1680,2322,2021],{"class":1713},[1680,2324,2325],{"class":1960},"AmbientLight",[1680,2327,1963],{"class":1813},[1680,2329,2330],{"class":2063},"0xffffff",[1680,2332,1904],{"class":1713},[1680,2334,2335],{"class":2063}," 0.5",[1680,2337,2338],{"class":1813},"))",[1680,2340,1736],{"class":1713},[1680,2342,2344,2346,2349,2351,2353,2355,2357,2360,2362,2364,2366,2369,2371],{"class":1682,"line":2343},28,[1680,2345,2006],{"class":1829},[1680,2347,2348],{"class":1720}," directionalLight",[1680,2350,2012],{"class":1713},[1680,2352,2015],{"class":1713},[1680,2354,2018],{"class":1720},[1680,2356,2021],{"class":1713},[1680,2358,2359],{"class":1960},"DirectionalLight",[1680,2361,1963],{"class":1813},[1680,2363,2330],{"class":2063},[1680,2365,1904],{"class":1713},[1680,2367,2368],{"class":2063}," 1.5",[1680,2370,1969],{"class":1813},[1680,2372,1736],{"class":1713},[1680,2374,2376,2379,2381,2383,2385,2387,2389,2392,2394,2396,2398,2401,2403],{"class":1682,"line":2375},29,[1680,2377,2378],{"class":1720},"    directionalLight",[1680,2380,2021],{"class":1713},[1680,2382,2100],{"class":1720},[1680,2384,2021],{"class":1713},[1680,2386,2251],{"class":1960},[1680,2388,1963],{"class":1813},[1680,2390,2391],{"class":2063},"3",[1680,2393,1904],{"class":1713},[1680,2395,2110],{"class":2063},[1680,2397,1904],{"class":1713},[1680,2399,2400],{"class":2063}," 4",[1680,2402,1969],{"class":1813},[1680,2404,1736],{"class":1713},[1680,2406,2408,2410,2412,2414,2416,2419,2421],{"class":1682,"line":2407},30,[1680,2409,2279],{"class":1720},[1680,2411,2021],{"class":1713},[1680,2413,2284],{"class":1960},[1680,2415,1963],{"class":1813},[1680,2417,2418],{"class":1720},"directionalLight",[1680,2420,1969],{"class":1813},[1680,2422,1736],{"class":1713},[1680,2424,2426],{"class":1682,"line":2425},31,[1680,2427,1877],{"emptyLinePlaceholder":1876},[1680,2429,2431],{"class":1682,"line":2430},32,[1680,2432,2433],{"class":1999},"    // 5. 创建渲染器（放映机），设置画幅大小后挂到页面上\n",[1680,2435,2437,2439,2442,2444,2446,2448,2450,2453,2455,2457,2460,2462,2466,2468,2470],{"class":1682,"line":2436},33,[1680,2438,2006],{"class":1829},[1680,2440,2441],{"class":1720}," renderer",[1680,2443,2012],{"class":1713},[1680,2445,2015],{"class":1713},[1680,2447,2018],{"class":1720},[1680,2449,2021],{"class":1713},[1680,2451,2452],{"class":1960},"WebGLRenderer",[1680,2454,1963],{"class":1813},[1680,2456,2188],{"class":1713},[1680,2458,2459],{"class":1813}," antialias",[1680,2461,2194],{"class":1713},[1680,2463,2465],{"class":2464},"sPKOg"," true",[1680,2467,1909],{"class":1713},[1680,2469,1969],{"class":1813},[1680,2471,1736],{"class":1713},[1680,2473,2475,2478,2480,2483,2485,2488,2490,2492,2494],{"class":1682,"line":2474},34,[1680,2476,2477],{"class":1720},"    renderer",[1680,2479,2021],{"class":1713},[1680,2481,2482],{"class":1960},"setSize",[1680,2484,1963],{"class":1813},[1680,2486,2487],{"class":2063},"320",[1680,2489,1904],{"class":1713},[1680,2491,2075],{"class":2063},[1680,2493,1969],{"class":1813},[1680,2495,1736],{"class":1713},[1680,2497,2499,2502,2504,2507,2509,2512,2514,2517,2519,2522,2524],{"class":1682,"line":2498},35,[1680,2500,2501],{"class":1720},"    containerRef",[1680,2503,2021],{"class":1713},[1680,2505,2506],{"class":1720},"value",[1680,2508,2021],{"class":1713},[1680,2510,2511],{"class":1960},"appendChild",[1680,2513,1963],{"class":1813},[1680,2515,2516],{"class":1720},"renderer",[1680,2518,2021],{"class":1713},[1680,2520,2521],{"class":1720},"domElement",[1680,2523,1969],{"class":1813},[1680,2525,1736],{"class":1713},[1680,2527,2529],{"class":1682,"line":2528},36,[1680,2530,1877],{"emptyLinePlaceholder":1876},[1680,2532,2534],{"class":1682,"line":2533},37,[1680,2535,2536],{"class":1999},"    // 6. 拍照：把相机看到的场景画到 canvas 上\n",[1680,2538,2540,2542,2544,2547,2549,2552,2554,2556,2558],{"class":1682,"line":2539},38,[1680,2541,2477],{"class":1720},[1680,2543,2021],{"class":1713},[1680,2545,2546],{"class":1960},"render",[1680,2548,1963],{"class":1813},[1680,2550,2551],{"class":1720},"scene",[1680,2553,1904],{"class":1713},[1680,2555,2047],{"class":1720},[1680,2557,1969],{"class":1813},[1680,2559,1736],{"class":1713},[1680,2561,2563,2566,2568],{"class":1682,"line":2562},39,[1680,2564,2565],{"class":1713},"}",[1680,2567,1969],{"class":1720},[1680,2569,1736],{"class":1713},[1680,2571,2573,2575,2577],{"class":1682,"line":2572},40,[1680,2574,1866],{"class":1713},[1680,2576,1885],{"class":1813},[1680,2578,1817],{"class":1713},[1680,2580,2582],{"class":1682,"line":2581},41,[1680,2583,1877],{"emptyLinePlaceholder":1876},[1680,2585,2587,2589,2592,2595],{"class":1682,"line":2586},42,[1680,2588,1810],{"class":1713},[1680,2590,2591],{"class":1813},"style",[1680,2593,2594],{"class":1829}," scoped",[1680,2596,1817],{"class":1713},[1680,2598,2600,2602,2604],{"class":1682,"line":2599},43,[1680,2601,2021],{"class":1713},[1680,2603,1851],{"class":1686},[1680,2605,1993],{"class":1713},[1680,2607,2609,2613,2615,2618],{"class":1682,"line":2608},44,[1680,2610,2612],{"class":2611},"sug0G","    width",[1680,2614,2194],{"class":1713},[1680,2616,2617],{"class":2063}," 320px",[1680,2619,1736],{"class":1713},[1680,2621,2623,2626,2628,2631],{"class":1682,"line":2622},45,[1680,2624,2625],{"class":2611},"    height",[1680,2627,2194],{"class":1713},[1680,2629,2630],{"class":2063}," 240px",[1680,2632,1736],{"class":1713},[1680,2634,2636],{"class":1682,"line":2635},46,[1680,2637,2638],{"class":1713},"}\n",[1680,2640,2642,2644,2646],{"class":1682,"line":2641},47,[1680,2643,1866],{"class":1713},[1680,2645,2591],{"class":1813},[1680,2647,1817],{"class":1713},[1531,2649,2650],{},"这段代码有点长，但结构就是上面说的固定流程，记住这个对应关系：",[1577,2652,2653,2663],{},[1580,2654,2655],{},[1583,2656,2657,2660],{},[1586,2658,2659],{},"代码",[1586,2661,2662],{},"拍电影的对应物",[1595,2664,2665,2675,2689,2701,2711,2721],{},[1583,2666,2667,2672],{},[1600,2668,2669],{},[1677,2670,2671],{},"new THREE.Scene()",[1600,2673,2674],{},"摄影棚",[1583,2676,2677,2686],{},[1600,2678,2679,2681,2682,2681,2684],{},[1677,2680,2146],{}," + ",[1677,2683,2183],{},[1677,2685,2222],{},[1600,2687,2688],{},"演员（立方体）",[1583,2690,2691,2698],{},[1600,2692,2693,2695,2696],{},[1677,2694,2325],{}," / ",[1677,2697,2359],{},[1600,2699,2700],{},"摄影棚的灯光",[1583,2702,2703,2708],{},[1600,2704,2705],{},[1677,2706,2707],{},"new THREE.PerspectiveCamera()",[1600,2709,2710],{},"摄像机",[1583,2712,2713,2718],{},[1600,2714,2715],{},[1677,2716,2717],{},"new THREE.WebGLRenderer()",[1600,2719,2720],{},"放映机",[1583,2722,2723,2728],{},[1600,2724,2725],{},[1677,2726,2727],{},"renderer.render(scene, camera)",[1600,2729,2730],{},"按下快门",[1531,2732,2733],{},"有几个细节说明一下：",[1753,2735,2736,2742,2748,2753],{},[1756,2737,2738,2741],{},[1677,2739,2740],{},"BoxGeometry(1, 1, 1)"," 创建的是宽、高、深都是 1 的立方体。Three.js 里的单位不是像素，是抽象的空间单位，显示大小全靠相机距离衬托。",[1756,2743,2744,2747],{},[1677,2745,2746],{},"cube.rotation.set(0.6, 0.8, 0)"," 让立方体绕 x、y 轴各转一点。正对着相机看立方体只是一个正方形，转个角度才有立体感。",[1756,2749,2750,2752],{},[1677,2751,2183],{}," 是一种“靠灯光才能显形”的材质，加了灯之后朝向光的面亮、背光的面暗，立体感就出来了。材质和灯光分别在第 2、3 篇详解。",[1756,2754,2755,2758,2759,2761],{},[1677,2756,2757],{},"renderer.domElement"," 就是渲染器创建好的 ",[1677,2760,1776],{}," 标签，我们需要手动把它挂到容器里。",[1531,2763,2764,2765,2768],{},"下面是这段代码在页面上的",[1545,2766,2767],{},"真实渲染效果","：",[2770,2771],"three-first-scene",{},[2773,2774,2775,2778],"warning",{},[1531,2776,2777],{},"两个容易踩的坑：",[2779,2780,2781,2787],"ol",{},[1756,2782,2783,2784,2786],{},"Three.js 代码必须放在 ",[1677,2785,1982],{}," 里执行，这时容器才真实存在于页面上。",[1756,2788,2789],{},"画面是纯黑看不到物体时，先检查是不是用了 Standard 材质却忘了加灯光。",[1643,2791,2792],{},[1531,2793,2794,2795,2798],{},"在高分屏（如 Mac 的 Retina 屏）上画面可能有点模糊，加一行 ",[1677,2796,2797],{},"renderer.setPixelRatio(window.devicePixelRatio)"," 就能变清晰。它不影响布局尺寸，可以放心加上。",[1535,2800],{},[1526,2802,2804],{"id":2803},"小节总结","🧾 小节总结",[1753,2806,2807,2810,2813,2816,2823,2829],{},[1756,2808,2809],{},"Three.js 是浏览器里的 3D 绘图引擎，封装了底层 WebGL。",[1756,2811,2812],{},"平面图表选 ECharts/D3，立体空间效果选 Three.js。",[1756,2814,2815],{},"三大件：场景（摄影棚）、相机（摄像机）、渲染器（放映机）。",[1756,2817,2818,2819,2822],{},"物体 = 几何体（形状）+ 材质（皮肤），组合成 Mesh 后用 ",[1677,2820,2821],{},"scene.add()"," 放进场景。",[1756,2824,2825,2826,2828],{},"固定流程：建场景 → 放物体和灯光 → 架相机 → ",[1677,2827,2727],{}," 拍照。",[1756,2830,2831,2832,2835],{},"使用 ",[1677,2833,2834],{},"npm install three"," 安装，课程基于 Node.js v22.0.0 和 Three.js 0.185.1。",[1535,2837],{},[1526,2839,2841],{"id":2840},"知识问答","❓ 知识问答",[1531,2843,2844],{},[1545,2845,2846],{},"Q1：Three.js 收费吗？",[1531,2848,2849],{},"完全免费。它基于 MIT 开源协议发布，个人和公司都可以免费商用。",[1531,2851,2852],{},[1545,2853,2854],{},"Q2：学 Three.js 需要先学 WebGL 吗？",[1531,2856,2857],{},"不需要。Three.js 已经把 WebGL 封装好了，直接学 Three.js 即可。等以后要写自定义着色器时，再补 WebGL 基础也不迟。",[1531,2859,2860],{},[1545,2861,2862,2863,2866,2867,2870],{},"Q3：颜色为什么写成 ",[1677,2864,2865],{},"0x44aa88"," 而不是 ",[1677,2868,2869],{},"'#44aa88'","？",[1531,2872,2873,2876,2877,2879],{},[1677,2874,2875],{},"0x"," 是十六进制数字的写法，Three.js 的颜色参数默认接收数字。字符串 ",[1677,2878,2869],{}," 在多数情况也能识别，课程统一用官方示例的数字写法。",[1531,2881,2882],{},[1545,2883,2884,2885,2888],{},"Q4：",[1677,2886,2887],{},"renderer.render()"," 只调用一次，画面会动吗？",[1531,2890,2891],{},"不会，它只是拍了一张静态照片。想让画面动起来需要“渲染循环”，动画篇会专门讲解。",[1535,2893],{},[1526,2895,2897],{"id":2896},"小练习","🧪 小练习",[1531,2899,2900],{},"在第一个场景的基础上完成改造：",[2779,2902,2903,2906,2909],{},[1756,2904,2905],{},"把立方体的颜色改成你喜欢的颜色。",[1756,2907,2908],{},"把立方体尺寸改成宽 2、高 1、深 1 的长方体，观察形状变化。",[1756,2910,2911,2912,2915],{},"把 ",[1677,2913,2914],{},"camera.position.z"," 分别改成 3 和 8，感受相机远近对画面大小的影响。",[1670,2917,2920],{"className":1800,"code":2918,"filename":2919,"language":1803,"meta":1675,"style":1675},"\u003Ctemplate>\n    \u003Cdiv ref=\"containerRef\" class=\"container\">\u003C/div>\n\u003C/template>\n\n\u003Cscript setup>\nimport { onMounted, ref } from 'vue';\nimport * as THREE from 'three';\n\nconst containerRef = ref(null);\n\nonMounted(() => {\n    // 请在这里编写代码\n});\n\u003C/script>\n\n\u003Cstyle scoped>\n.container {\n    width: 320px;\n    height: 240px;\n}\n\u003C/style>\n","views/MyScene.vue",[1677,2921,2922,2930,2962,2970,2974,2984,3008,3028,3032,3050,3054,3066,3071,3079,3087,3091,3101,3109,3119,3129,3133],{"__ignoreMap":1675},[1680,2923,2924,2926,2928],{"class":1682,"line":1683},[1680,2925,1810],{"class":1713},[1680,2927,1814],{"class":1813},[1680,2929,1817],{"class":1713},[1680,2931,2932,2934,2936,2938,2940,2942,2944,2946,2948,2950,2952,2954,2956,2958,2960],{"class":1682,"line":1820},[1680,2933,1823],{"class":1713},[1680,2935,1826],{"class":1813},[1680,2937,1830],{"class":1829},[1680,2939,1833],{"class":1713},[1680,2941,1836],{"class":1713},[1680,2943,1839],{"class":1690},[1680,2945,1836],{"class":1713},[1680,2947,1844],{"class":1829},[1680,2949,1833],{"class":1713},[1680,2951,1836],{"class":1713},[1680,2953,1851],{"class":1690},[1680,2955,1836],{"class":1713},[1680,2957,1856],{"class":1713},[1680,2959,1826],{"class":1813},[1680,2961,1817],{"class":1713},[1680,2963,2964,2966,2968],{"class":1682,"line":1863},[1680,2965,1866],{"class":1713},[1680,2967,1814],{"class":1813},[1680,2969,1817],{"class":1713},[1680,2971,2972],{"class":1682,"line":1873},[1680,2973,1877],{"emptyLinePlaceholder":1876},[1680,2975,2976,2978,2980,2982],{"class":1682,"line":1880},[1680,2977,1810],{"class":1713},[1680,2979,1885],{"class":1813},[1680,2981,1888],{"class":1829},[1680,2983,1817],{"class":1713},[1680,2985,2986,2988,2990,2992,2994,2996,2998,3000,3002,3004,3006],{"class":1682,"line":1893},[1680,2987,1710],{"class":1709},[1680,2989,1898],{"class":1713},[1680,2991,1901],{"class":1720},[1680,2993,1904],{"class":1713},[1680,2995,1830],{"class":1720},[1680,2997,1909],{"class":1713},[1680,2999,1912],{"class":1709},[1680,3001,1727],{"class":1713},[1680,3003,1803],{"class":1690},[1680,3005,1733],{"class":1713},[1680,3007,1736],{"class":1713},[1680,3009,3010,3012,3014,3016,3018,3020,3022,3024,3026],{"class":1682,"line":1923},[1680,3011,1710],{"class":1709},[1680,3013,1714],{"class":1713},[1680,3015,1717],{"class":1709},[1680,3017,1721],{"class":1720},[1680,3019,1724],{"class":1709},[1680,3021,1727],{"class":1713},[1680,3023,1730],{"class":1690},[1680,3025,1733],{"class":1713},[1680,3027,1736],{"class":1713},[1680,3029,3030],{"class":1682,"line":1944},[1680,3031,1877],{"emptyLinePlaceholder":1876},[1680,3033,3034,3036,3038,3040,3042,3044,3046,3048],{"class":1682,"line":1949},[1680,3035,1952],{"class":1829},[1680,3037,1955],{"class":1720},[1680,3039,1833],{"class":1713},[1680,3041,1830],{"class":1960},[1680,3043,1963],{"class":1720},[1680,3045,1966],{"class":1713},[1680,3047,1969],{"class":1720},[1680,3049,1736],{"class":1713},[1680,3051,3052],{"class":1682,"line":1974},[1680,3053,1877],{"emptyLinePlaceholder":1876},[1680,3055,3056,3058,3060,3062,3064],{"class":1682,"line":1979},[1680,3057,1982],{"class":1960},[1680,3059,1963],{"class":1720},[1680,3061,1987],{"class":1713},[1680,3063,1990],{"class":1829},[1680,3065,1993],{"class":1713},[1680,3067,3068],{"class":1682,"line":1996},[1680,3069,3070],{"class":1999},"    // 请在这里编写代码\n",[1680,3072,3073,3075,3077],{"class":1682,"line":2003},[1680,3074,2565],{"class":1713},[1680,3076,1969],{"class":1720},[1680,3078,1736],{"class":1713},[1680,3080,3081,3083,3085],{"class":1682,"line":2031},[1680,3082,1866],{"class":1713},[1680,3084,1885],{"class":1813},[1680,3086,1817],{"class":1713},[1680,3088,3089],{"class":1682,"line":2036},[1680,3090,1877],{"emptyLinePlaceholder":1876},[1680,3092,3093,3095,3097,3099],{"class":1682,"line":2042},[1680,3094,1810],{"class":1713},[1680,3096,2591],{"class":1813},[1680,3098,2594],{"class":1829},[1680,3100,1817],{"class":1713},[1680,3102,3103,3105,3107],{"class":1682,"line":2092},[1680,3104,2021],{"class":1713},[1680,3106,1851],{"class":1686},[1680,3108,1993],{"class":1713},[1680,3110,3111,3113,3115,3117],{"class":1682,"line":2119},[1680,3112,2612],{"class":2611},[1680,3114,2194],{"class":1713},[1680,3116,2617],{"class":2063},[1680,3118,1736],{"class":1713},[1680,3120,3121,3123,3125,3127],{"class":1682,"line":2124},[1680,3122,2625],{"class":2611},[1680,3124,2194],{"class":1713},[1680,3126,2630],{"class":2063},[1680,3128,1736],{"class":1713},[1680,3130,3131],{"class":1682,"line":2130},[1680,3132,2638],{"class":1713},[1680,3134,3135,3137,3139],{"class":1682,"line":2167},[1680,3136,1866],{"class":1713},[1680,3138,2591],{"class":1813},[1680,3140,1817],{"class":1713},[1535,3142],{},[1531,3144,3145],{},"🎉 恭喜你已经渲染出第一个 3D 场景了！下一篇我们来认识更多几何体和材质，让场景里的演员丰富起来。",[2591,3147,3148],{},"html pre.shiki code .sYGMc, html code.shiki .sYGMc{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sIEYB, html code.shiki .sIEYB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html 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.sug0G{--shiki-light:#8796B0;--shiki-default:#B2CCD6;--shiki-dark:#B2CCD6}",{"title":1675,"searchDepth":1820,"depth":1820,"links":3150},[3151,3152,3153,3154,3155,3156,3157,3158,3159],{"id":1528,"depth":1820,"text":1529},{"id":1539,"depth":1820,"text":1540},{"id":1563,"depth":1820,"text":1564},{"id":1656,"depth":1820,"text":1657},{"id":1747,"depth":1820,"text":1748},{"id":1793,"depth":1820,"text":1794},{"id":2803,"depth":1820,"text":2804},{"id":2840,"depth":1820,"text":2841},{"id":2896,"depth":1820,"text":2897},"了解 Three.js 是什么、它和 ECharts/D3 的区别，认识场景、相机、渲染器三大件，在浏览器里渲染出第一个 3D 立方体。","md",null,{},{"title":1082},{"title":1521,"description":3160},"9AtFvz9t0R",[3168,3170],{"title":1033,"path":1073,"stem":1074,"description":3169,"children":-1},"理清 D3 和 Vue 的分工原则，把图表封装成可复用的 Vue3 组件，处理好数据更新与卸载清理。",{"title":1088,"path":1089,"stem":1090,"description":3171,"children":-1},"认识 Box、Sphere 等常用几何体，分清 Basic 与 Standard 两种材质的区别，学会给物体换形状和皮肤。",1784715105013]