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Github首页地球学习(2)-光源
接上一篇:
最终效果:
代码:
```javascriptexport default function getGlowLight() {    const cl = 25;    const mat = new THREE.ShaderMaterial({        uniforms: {            c: { type: "f", value: 0.7 },            p: { type: "f", value: 15 },            glowColor: { type: "c", value: new THREE.Color(0x1c2462) },            viewVector: { type: "v3", value: new THREE.Vector3(0, 0, 220) },        },        vertexShader: `            #define GLSLIFY 1            uniform vec3 viewVector;            uniform float c;            uniform float p;            varying float intensity;            void main() {                vec3 vNormal = normalize(normalMatrix * normal);                vec3 vNormel = normalize(normalMatrix * viewVector);                intensity = pow(c - dot(vNormal, vNormel), p);                gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);            }        `,        fragmentShader: `            #define GLSLIFY 1            uniform vec3 glowColor;            varying float intensity;            void main() {                vec3 glow = glowColor * intensity;                gl_FragColor = vec4(glow, 1.0);            }        `,        side: 1,        blending: 2,        transparent: !0,    });    const s = new THREE.Mesh(new THREE.SphereBufferGeometry(cl, 45, 45), mat);    s.name = "GlowLight";    s.scale.multiplyScalar(1.15);    s.rotateX(0.03 * Math.PI);    s.rotateY(0.03 * Math.PI);    return s;}

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