surface-metal.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Mollusc Shell - ECHARTS-GL</title>
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
<link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="lib/dat.gui.js"></script>
<script src="js/commonUI.js"></script>
<script>
var chart = echarts.init(document.getElementById('main'));
var sin = Math.sin;
var cos = Math.cos;
var pow = Math.pow;
var sqrt = Math.sqrt;
var cosh = Math.cosh;
var sinh = Math.sinh;
var PI = Math.PI;
var aa = 0.4;
var r = 1 - aa * aa;
var w = sqrt(r);
var config = {
aa: aa
};
function getParametricEquation() {
return {
u: {
min: -13.2,
max: 13.2,
step: 0.4
},
v: {
min: -37.4,
max: 37.4,
step: 0.4
},
x: function (u, v) {
var denom = aa * (pow(w * cosh(aa * u), 2) + aa * pow(sin(w * v), 2))
return -u + (2 * r * cosh(aa * u) * sinh(aa * u) / denom);
},
y: function (u, v) {
var denom = aa * (pow(w * cosh(aa * u), 2) + aa * pow(sin(w * v), 2))
return 2 * w * cosh(aa * u) * (-(w * cos(v) * cos(w * v)) - (sin(v) * sin(w * v))) / denom;
},
z: function (u, v) {
var denom = aa * (pow(w * cosh(aa * u), 2) + aa * pow(sin(w * v), 2))
return 2 * w * cosh(aa * u) * (-(w * sin(v) * cos(w * v)) + (cos(v) * sin(w * v))) / denom
}
};
}
chart.setOption({
toolbox: {
feature: {
saveAsImage: {
backgroundColor: '#111'
}
},
iconStyle: {
normal: {
borderColor: '#fff'
}
},
left: 0
},
xAxis3D: {
type: 'value'
},
yAxis3D: {
type: 'value'
},
zAxis3D: {
type: 'value'
},
grid3D: {
environment: 'none',
axisPointer: {
show: false
},
axisLine: {
lineStyle: {
color: '#fff'
}
},
postEffect: {
enable: true,
screenSpaceAmbientOcclusion: {
enable: true,
radius: 4,
intensity: 2
}
},
temporalSuperSampling: {
enable: true
},
light: {
main: {
intensity: 0
},
ambient: {
intensity: 0
},
ambientCubemap: {
texture: 'asset/pisa.hdr',
exposure: 1,
diffuseIntensity: 1,
specularIntensity: 2
}
},
viewControl: {
// projection: 'orthographic'
}
},
series: [{
type: 'surface',
parametric: true,
shading: 'realistic',
silent: true,
wireframe: {
show: false
},
realisticMaterial: {
roughness: 0.3,
metalness: 1
},
itemStyle: {
color: '#aaa'
},
parametricEquation: getParametricEquation()
}]
});
var gui = new dat.GUI();
gui.add(config, 'aa', 0.1, 0.9).onFinishChange(function () {
aa = config.aa;
chart.setOption({
series: [{
parametricEquation: getParametricEquation()
}]
});
})
window.addEventListener('resize', function () {
chart.resize();
});
</script>
</body>
</html>