33 lines
2.0 KiB
JavaScript
33 lines
2.0 KiB
JavaScript
import puppeteer from 'puppeteer';
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const b = await puppeteer.launch({ args:['--no-sandbox','--disable-setuid-sandbox','--use-gl=angle','--enable-unsafe-swiftshader','--ignore-gpu-blocklist'] });
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const p = await b.newPage();
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await p.setViewport({width:1100,height:1300});
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await p.goto('http://10.200.201.3:4175/_lab/neu-card.html',{waitUntil:'load',timeout:60000});
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await new Promise(r=>setTimeout(r,800));
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const r = await p.evaluate(async ()=>{
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const mod = await import('/vendor/paper-shaders/index.js');
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const { ShaderMount, meshGradientFragmentShader, getShaderColorFromString } = mod;
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const host = document.createElement('div'); host.style.cssText='width:300px;height:200px;position:relative';
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document.body.appendChild(host);
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const colors = ['#7c5cff','#00c2c7','#ff5c8a','#ffb347'].map(getShaderColorFromString);
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const m = new ShaderMount(host, meshGradientFragmentShader, { u_colors: colors, u_colorsCount: colors.length, u_distortion:1.2, u_swirl:0.8, u_grainMixer:0.08, u_grainOverlay:0.04 }, { preserveDrawingBuffer:true, antialias:true }, 1.0);
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const gl=m.gl, pr=m.program;
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// правильное чтение: getUniform ВОЗВРАЩАЕТ значение
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const gf=(n)=>gl.getUniform(pr, gl.getUniformLocation(pr,n));
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const colorsWritten = gf('u_colors[0]'); // Float32Array(4)
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const countWritten = gf('u_colorsCount'); // number
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const swirlWritten = gf('u_swirl');
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// readPixels скан
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m.render(performance.now()); m.render(performance.now());
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const W=m.canvasElement.width,H=m.canvasElement.height; const buf=new Uint8Array(W*H*4); gl.readPixels(0,0,W,H,gl.RGBA,gl.UNSIGNED_BYTE,buf);
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let bright=0,maxc=0; for(let i=0;i<buf.length;i+=4){const mx=Math.max(buf[i],buf[i+1],buf[i+2]); if(mx>120)bright++; maxc=Math.max(maxc,mx);}
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return {
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u_colors0: colorsWritten ? Array.from(colorsWritten).map(x=>+x.toFixed(2)) : null,
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u_colorsCount: countWritten,
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u_swirl: swirlWritten,
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brightPixels: bright, maxChannel: maxc,
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};
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});
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console.log(JSON.stringify(r,null,1));
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await b.close();
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