优化 worker 的负载函数 | 支持对于 parameter 的渲染

.gitignore

@@ -21,3 +21,4 @@ pnpm-debug.log*
 *.njsproj
 *.sln
 *.sw?
+*.vcd

design/webgl.drawio

@@ -1,6 +1,6 @@
 <mxfile host="65bd71144e">
     <diagram id="fareUikBvdjO0hJmng89" name="makeBitVertex 原理图">
-        <mxGraphModel dx="1529" dy="929" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="0" pageScale="1" pageWidth="827" pageHeight="1169" math="1" shadow="0">
+        <mxGraphModel dx="2008" dy="1429" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="0" pageScale="1" pageWidth="827" pageHeight="1169" math="1" shadow="0">
             <root>
                 <mxCell id="0"/>
                 <mxCell id="1" parent="0"/>
@@ -570,7 +570,7 @@
         </mxGraphModel>
     </diagram>
     <diagram id="ldzhMOmdS79g5s7hsVNb" name="makeVecVertex 原理图">
-        <mxGraphModel dx="-10" dy="250" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="0" pageScale="1" pageWidth="827" pageHeight="1169" math="1" shadow="0">
+        <mxGraphModel dx="245" dy="529" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="0" pageScale="1" pageWidth="827" pageHeight="1169" math="1" shadow="0">
             <root>
                 <mxCell id="0"/>
                 <mxCell id="1" parent="0"/>

public/index.html

@@ -15,14 +15,13 @@
 
     <script>
         window.readVcdFile = async () => {
-            const response = await fetch('test.vcd');
+            const response = await fetch('pe_tb.vcd');
             const blob = await response.blob();
             const reader = new FileReader();
             return new Promise((resolve, reject) => {
                 reader.onload = event => {
-                    const fileContent = event.target.result;
+                    const arrayBuffer = event.target.result;
-                    const unintarray = new Uint8Array(fileContent);
+                    resolve(arrayBuffer);
-                    resolve(unintarray);     
                 };
                 reader.readAsArrayBuffer(blob);
             });

public/worker.js

@@ -0,0 +1,9 @@
+importScripts('vcd.js');
+
+self.onmessage = async event => {
+    const arrayBuffer = event.data;
+    const vcdstream = await makeVcdStream();
+    vcdstream.consume(arrayBuffer);
+    const info = vcdstream.getBasicInfo();
+    self.postMessage(info);
+}

src/App.vue

@@ -16,14 +16,19 @@
 
 <script setup>
 import { onMounted, reactive, watch } from 'vue';
-import { getVcdStream, numberOrString, gcd, normaliseUsingGCD, parseTimescale } from '@/hook/utils';
+import { useI18n } from 'vue-i18n';
-import { emitter, globalLookup, globalSetting, signalValues } from '@/hook/global';
+
+import { ElLoading } from 'element-plus';
+
+import { emitter, globalLookup, globalSetting } from '@/hook/global';
 import { makeWaveView } from '@/hook/render';
 
 import Sidebar from '@/components/sidebar.vue';
 import RightNav from '@/components/right-nav.vue';
 import MainRender from '@/components/render';
 
+const { t } = useI18n();
+
 // 监听 globalSetting 并录入 localStorage
 watch(
     () => globalSetting,
@@ -39,6 +44,11 @@ const VcdInfo = reactive({
 });
 
 onMounted(async () => {
+    const loading = new ElLoading.service({
+        lock: true,
+        text: t('loading'),
+        background: 'rgba(0, 0, 0, 0.7)'
+    });
     // 改变默认颜色
     document.body.style.setProperty('--el-color-primary', 'var(--main-color)');
     document.body.style.setProperty('--el-color-primary-light-9', 'var(--main-color)');
@@ -72,71 +82,56 @@ onMounted(async () => {
     }
 
     // 初始化载入 vcd 文件
-    const uint8array = await window.readVcdFile();
+    const arrayBuffer = await window.readVcdFile();
-    const vcdstream = await getVcdStream();
 
-    let tgcd;
+    const worker = new Worker('worker.js', {
-    // 使用 vcdstream 的 any 回调获取波形数据，并按照正确的格式进行解码和存储
+        name: 'vcd-stream',
-    // 这段处理来自 https://github.com/wavedrom/vcd 的 vcd-pipe-deso.js 的 58 行
+        type: 'classic'
-    // 请严格对准转换规则
+    });
-    vcdstream.change.any((id, time, cmd, value, mask) => {
-        const time53 = Number(time);
-        tgcd = gcd(tgcd, time53);
-        signalValues[id] = signalValues[id] || { kind: '', wave: [] };
 
-        if (cmd >= 14 && cmd <= 28) {
+    worker.postMessage(arrayBuffer, [arrayBuffer]);
-            signalValues[id].kind = 'bit';
+
-            signalValues[id].wave.push([time53, cmd - 14]);
+    worker.addEventListener('message', event => {
-        } else {
+        const workerVars = event.data;
-            signalValues[id].kind = 'vec';
+        console.log(workerVars);
-            const point = [time53, numberOrString(value)];
+        const vcdInfo = workerVars.vcdInfo;
-            if (mask !== 0n) {
+        const signalValues = workerVars.signalValues;
-                point.push(numberOrString(mask));
+
+        for (const topModule of vcdInfo.wires.body) {
+            VcdInfo.topModules.push(topModule);
+        }
+
+        globalLookup.status = vcdInfo.status;
+        globalLookup.version = vcdInfo.version;
+        globalLookup.timescale = vcdInfo.timescale;
+        globalLookup.date = vcdInfo.date;
+        globalLookup.t0 = vcdInfo.t0 || 0;
+
+        globalLookup.tgcd = workerVars.tgcd;
+        globalLookup.time = workerVars.time;
+        globalLookup.chango = signalValues;
+        makeWaveView();
+
+        console.log(signalValues['*']);
+
+        // console.log('duration time', globalLookup.time);
+        emitter.emit('meta-ready', null);
+
+        // 这一步时，已经加载完成
+        // 默认第一个模块被选中
+        if (VcdInfo.topModules.length > 0) {
+            const defaultMod = VcdInfo.topModules[0];
+            const wires = defaultMod.body.filter(mod => mod.link);
+            emitter.emit('tree-view', wires);
+            // 将顶层模块存储进全局对象，以便后续的搜索服务
+            for (const mod of VcdInfo.topModules) {
+                globalLookup.topModules.push(mod);
             }
-            signalValues[id].wave.push(point);
         }
+
+        loading.close();
+        worker.terminate();
     });
-
-    vcdstream.on('$enddefinitions', () => {
-
-    });
-
-    const maxChunkLength = 1 << 17;
-    for (let i = 0; i < uint8array.length; i += maxChunkLength) {
-        const piece = uint8array.slice(i, i + maxChunkLength);
-        vcdstream.write(piece);
-    }
-
-    for (const topModule of vcdstream.info.wires.body) {
-        VcdInfo.topModules.push(topModule);
-    }
-    globalLookup.status = vcdstream.info.status;
-    globalLookup.version = vcdstream.info.version;
-    globalLookup.timescale = parseTimescale(vcdstream.info.timescale);
-    globalLookup.date = vcdstream.info.date;
-    globalLookup.t0 = vcdstream.info.t0 || 0;
-
-    globalLookup.tgcd = tgcd;
-    globalLookup.time = Number(vcdstream.getTime());
-    globalLookup.chango = signalValues;
-    normaliseUsingGCD(globalLookup, signalValues);
-
-    makeWaveView();
-
-    // console.log('duration time', globalLookup.time);
-    emitter.emit('meta-ready', null);
-
-    // 这一步时，已经加载完成
-    // 默认第一个模块被选中
-    if (VcdInfo.topModules.length > 0) {
-        const defaultMod = VcdInfo.topModules[0];
-        const wires = defaultMod.body.filter(mod => mod.link);
-        emitter.emit('tree-view', wires);
-        // 将顶层模块存储进全局对象，以便后续的搜索服务
-        for (const mod of VcdInfo.topModules) {
-            globalLookup.topModules.push(mod);
-        }
-    }
 });
 
 </script>

src/components/render/index.vue

@@ -56,6 +56,7 @@ export default {
 
 .vcd-vline {
     position: absolute;
+    transition: var(--animation-5s);
 }
 
 .vcd-view {
@@ -64,10 +65,16 @@ export default {
     bottom: var(--vcd-render-padding);
 }
 
+.vcd-hidden {
+    opacity: 0;
+    transition: var(--animation-5s);
+}
+
 .vcd-values {
     position: absolute;
     top: var(--vcd-render-padding);
     bottom: var(--vcd-render-padding);
+    transition: var(--animation-5s);
 }
 
 .wd-waveql {

src/components/render/time-scale.vue

@@ -23,7 +23,6 @@
 <script>
 import { onMounted, reactive } from 'vue';
 import { globalLookup, emitter } from '@/hook/global';
-import { handleTimeScale } from '@/hook/utils';
 import { wheelScale } from '@/hook/wheel';
 
 export default {
@@ -43,13 +42,6 @@ export default {
 
         // 此时有关波形的元信息已经加载完毕
         emitter.on('meta-ready', () => {
-            // const { scale, unit } = handleTimeScale(globalLookup.timescale);
-            // timeScaleManage.scale = scale;
-            // timeScaleManage.unit = unit;
-
-            // console.log(timeScaleManage.unit);
-
-            // const viewInfo = globalLookup.view;
         });
 
         // document.addEventListener('wheel', event => {

src/components/setting/index.vue

@@ -205,7 +205,6 @@ watch(() => wavecolor.currentOptionIndex, () => {
 });
 
 watch(() => wavecolor.colors, () => {
-    console.log('enter');
     const colorString = wavecolor.colors[wavecolor.currentOptionIndex];
     const rgba = rgba2WebglColor(colorString);
     if (rgba !== undefined) {

src/hook/global.js

@@ -94,7 +94,7 @@ const globalSetting = reactive({
     HorizontalRollRatio: 1,
     VerticalRollRario: 1,
     minGridWidth: 300,
-    prerender: true,
+    prerender: false,
     renderAnimation: false,
 });
 
@@ -119,20 +119,9 @@ if (storedSetting) {
 }
 
 
-
-// for (const key of Reflect.ownKeys(globalSetting)) {
-//     const value = localStorageGetItem(key);
-//     if (value !== undefined && value !== null) {
-//         globalSetting[key] = value;
-//     }
-// }
-
-const signalValues = {};
-
 export {
     emitter,
     globalLookup,
     globalSetting,
-    globalStyle,
+    globalStyle
-    signalValues
 };

src/hook/render.js

@@ -1,4 +1,4 @@
-import { globalLookup, globalSetting, signalValues } from "./global";
+import { globalLookup, globalSetting } from "./global";
 import { domContainer, pluginRenderTimeGrid, pluginRenderValues, mountTree,
          genOnWheel, genKeyHandler, keyEvent } from './wave-view';
 
@@ -78,6 +78,8 @@ function toggleRender(signal) {
     } else {
         globalLookup.currentWires.add(signal);
         const signalItem = globalLookup.chango[signal.link];
+        console.log(signalItem, signal.link);
+
         const { wave, kind } = signalItem;
         const time = globalLookup.currentTime;
         globalLookup.currentSignalValues[signal.link] = findCurrentSignalValue(kind, wave, time);

src/hook/utils.js

@@ -196,100 +196,6 @@ function findCurrentSignalValue(kind, wave, time) {
     return value;
 }
 
-/**
- * 
- * @param {string} timescale 
- * @return {{
- *  scale: number,
- *  unit: string
- * }}
- */
-function handleTimeScale(timescale) {
-    const match = timescale.match(/^(\d+)(.*)$/);
-    if (match.length === 3) {
-        const scale = parseInt(match[1]);
-        const unit = match[2];
-        return { scale, unit };
-    } else {
-        console.log('Error: fail to parse timescale ' + timescale);
-        return { scale: null, unit: null };
-    }
-}
-
-const MAX_SAFE_INTEGER = BigInt(Number.MAX_SAFE_INTEGER);
-
-/**
- * 
- * @param {string} timescale 
- * @returns {string}
- */
-function parseTimescale(timescale) {
-    if (typeof timescale !== 'string') {
-        return;
-    }
-    const str1 = timescale.trim();
-    const m = str1.match(/^(\d+)\s*(\w+)$/);
-    const res1 = ({ 1: 0, 10: 1, 100: 2 })[m[1]];
-    const res2 = ({ s: 0, ms: -3, us: -6, ns: -9, ps: -12, fs: -15 })[m[2]];
-    return res1 + res2;
-}
-
-/**
- * 
- * @param {BigInt} val 
- * @returns {string | number}
- */
-function numberOrString(val) {
-    if (val < MAX_SAFE_INTEGER) {
-        return Number(val);
-    }
-    return '0x' + val.toString(16);
-}
-
-/**
- * 
- * @param {number} a 
- * @param {number} b 
- * @returns {number}
- */
-function gcd(a, b) {
-    if (a === undefined) {
-        return b;
-    }
-    let r;
-    while (b !== 0) {
-        r = a % b;
-        a = b;
-        b = r;
-    }
-    return (a < 0) ? -a : a;
-}
-
-
-function normaliseUsingGCD(globalLookup, signalValues) {
-    // const { tgcd, chango } = o;
-
-    const tgcd = globalLookup.tgcd;
-    
-    // 使用全局最大公约数缩小时间倍率
-    globalLookup.t0 /= tgcd;
-    globalLookup.time /= tgcd;
-    
-    for (const id of Reflect.ownKeys(signalValues)) {
-        // point[0] 是当前这个点的时间点
-        signalValues[id].wave.map(point => { point[0] /= tgcd });
-    }
-
-    const exp = Math.log10(tgcd) | 0;
-    if (exp > 0) {
-        const scale = Math.pow(10, exp);
-        const scaleGcd = tgcd / scale;
-        if (scaleGcd === (scaleGcd | 0)) {
-            globalLookup.tgcd = scaleGcd;
-            globalLookup.timescale += exp;
-        }
-    }
-}
 
 const scopes = new Set(['begin', 'fork', 'function', 'module', 'task']);
 const variables = new Set(['event', 'integer', 'parameter', 'real', 'realtime', 'reg', 'supply0',
@@ -357,17 +263,12 @@ export {
     getVcdStream,
     debounceWrapper,
     makeSearchResultItem,
-    handleTimeScale,
     isScope,
     isVariable,
     makeIconClass,
     scopes,
     variables,
-    parseTimescale,
-    numberOrString,
-    gcd,
     findCurrentSignalValue,
-    normaliseUsingGCD,
     updateWireCurrentValue,
     predefinedColors,
     webglColor2rgba,

src/hook/wave-view/dom-container.js

@@ -169,6 +169,7 @@ const domContainer = (obj) => {
                 setTime(pstate, deso.timeOpt.value);
             }
 
+
             const waveRender = new WebGL2WaveRender(elo, deso, pstate, obj.renderPlugins);
             deso.render = waveRender.render.bind(waveRender);
             deso.waveRender = waveRender;
@@ -187,7 +188,7 @@ const domContainer = (obj) => {
                     // console.log('resizeObserver', width, height);
                     resizeHandler(width, height);
                 }
-                deso.render();
+                deso.render({ type: 'action' });
             });
 
             resizeObserver.observe(document.body);

src/hook/wave-view/format-time.js

@@ -1,9 +1,9 @@
 const formatTime = (t, expo) => {
-  const prefixes = ['T', 'G', 'M', 'k', '', 'm', 'µ', 'n', 'p', 'f', 'a', 'z', 'y'];
+    const prefixes = ['T', 'G', 'M', 'k', '', 'm', 'µ', 'n', 'p', 'f', 'a', 'z', 'y'];
-  const ts1 = 14 - expo;
+    const ts1 = 14 - expo;
-  const prefix = prefixes[(ts1 / 3) |0];
+    const prefix = prefixes[(ts1 / 3) | 0];
-  const mult = ([100, 10, 1])[ts1 % 3];
+    const mult = ([100, 10, 1])[ts1 % 3];
-  return (t * mult).toLocaleString() + ' ' + prefix + 's';
+    return (t * mult).toLocaleString() + ' ' + prefix + 's';
 };
 
 export default formatTime;

src/hook/wave-view/gen-key-handler.js

@@ -1,28 +1,28 @@
 const { keyName } = require('w3c-keyname');
 
 const executeKeyHandler = (key, keyEvent, pstate, cm) => {
-  return (keyEvent[key] || keyEvent.nop).fn(pstate, cm);
+    return (keyEvent[key] || keyEvent.nop).fn(pstate, cm);
 };
 
 const genKeyHandler = (div, pstate, deso, cm, keyEvent, plugins) => {
-  return event => {
+    return event => {
 
-    const modifier = (
+        const modifier = (
-      (event.ctrlKey ? 'Ctrl+' : '') +
+            (event.ctrlKey ? 'Ctrl+' : '') +
-      (event.shiftKey ? 'Shift+' : '') +
+            (event.shiftKey ? 'Shift+' : '') +
-      (event.altKey ? 'Alt+' : '')
+            (event.altKey ? 'Alt+' : '')
-    );
+        );
-    // const key = modifier + event.key;
+        // const key = modifier + event.key;
-    const key = modifier + keyName(event);
+        const key = modifier + keyName(event);
 
-    if (executeKeyHandler(key, keyEvent, pstate, cm)) {
+        if (executeKeyHandler(key, keyEvent, pstate, cm)) {
-      event.stopPropagation();
+            event.stopPropagation();
-      if (plugins != undefined) {
+            if (plugins != undefined) {
-        plugins.map(fn => fn(key, event));
+                plugins.map(fn => fn(key, event));
-      }
+            }
-      deso.render();
+            deso.render();
-    }
+        }
-  };
+    };
 };
 
 export default {

src/hook/wave-view/gen-on-wheel.js

@@ -9,7 +9,7 @@ const genOnWheel = (element, pstate, deso, keyEvent, plugins) =>
                 if (plugins != undefined) {
                     plugins.map(fn => fn(key, event));
                 }
-                deso.render();
+                deso.render({ type: 'action' });
             }
             event.preventDefault();
         } else if (event.shiftKey) {
@@ -18,7 +18,7 @@ const genOnWheel = (element, pstate, deso, keyEvent, plugins) =>
                 if (plugins != undefined) {
                     plugins.map(fn => fn(key, event));
                 }
-                deso.render();
+                deso.render({ type: 'action' });
             }
             event.preventDefault();
         } else if (deltaX !== 0 && deltaY === 0) {
@@ -27,7 +27,7 @@ const genOnWheel = (element, pstate, deso, keyEvent, plugins) =>
                 if (plugins != undefined) {
                     plugins.map(fn => fn(key, event));
                 }
-                deso.render();
+                deso.render({ type: 'action' });
             }
             event.preventDefault();
         } else if (deltaX === 0 && deltaY !== 0) {
@@ -36,7 +36,7 @@ const genOnWheel = (element, pstate, deso, keyEvent, plugins) =>
                 if (plugins != undefined) {
                     plugins.map(fn => fn(key, event));
                 }
-                deso.render();
+                deso.render({ type: 'action' });
             }
             event.preventDefault();
         }

src/hook/wave-view/keyEvent.js

@@ -14,10 +14,11 @@ const xScaleLevels = {
     5: 10 / 4
 };
 
+// TODO: 优化横向滚动体验
 const xOffsetLevel = {
-    1: 5,
+    1: 500,
-    2: 4,
+    2: 20,
-    3: 3,
+    3: 5,
     4: 1,
     5: 0.5
 };

src/hook/wave-view/render-wave.js

@@ -1,8 +1,4 @@
-import { ElLoading  } from 'element-plus';
-
 import { globalSetting, globalStyle } from '../global';
-import i18n from '../../i18n';
-const { t } = i18n.global;
 
 import { gl_Colors, gl_Shifts, gl_Shifts_for_bar, gl_Shifts_map, gl_WidthShifts, barShift, getRatio, screenHeightPixel } from './render-utils.js';
 import { vertexShader, fragmentShader } from './render-shader.js';
@@ -49,12 +45,6 @@ class WebGL2WaveRender {
      * @param { Array } plugins
      */
     constructor(elements, globalLookup, pstate, plugins) {
-        const loading = ElLoading.service({
-            lock: true,
-            text: t('loading'),
-            background: 'rgba(0, 0, 0, 0.7)'
-        });
-
         const canvas = document.createElement('canvas');
         elements.view.replaceChildren(canvas);
 
@@ -76,8 +66,6 @@ class WebGL2WaveRender {
         this.maskVerticesMap = maskVerticesMap;
         this.initData();
         this.animationHandler = undefined;
-
-        loading.close();
     }
 
     /**
@@ -156,6 +144,9 @@ class WebGL2WaveRender {
         } else if (kind === 'vec') {
             const { lineVertices, maskVertices } = this.makeVecVertex(wave, time);
             return { lineVertices, maskVertices };
+        } else if (kind === '') {
+            const { lineVertices, maskVertices } = this.makeVecVertex(wave, time);
+            return { lineVertices, maskVertices };        
         }
         return {
             lineVertices: undefined,
@@ -217,6 +208,8 @@ class WebGL2WaveRender {
                 }
             }
         }
+
+        return 0;
     }
 
     /**
@@ -330,6 +323,11 @@ class WebGL2WaveRender {
             const y1Index = gl_Shifts_map.get(p1.y);
 
             const wsIndex = this.makeWidthShiftIndexByPoints(p0, p1, p2);
+
+            if (wsIndex === undefined) {
+                console.log(p0, p1, p2);
+            }
+
             lineVertices.push(
                 p1.x, y1Index, p1.color, wsIndex,
                 p1.x, y1Index, p1.color, (wsIndex + 4) % 8
@@ -377,12 +375,11 @@ class WebGL2WaveRender {
             }
         }
 
-
+        if (debug) {
-        // if (debug) {
+            console.log(perspectivePoints);
-        //     console.log(perspectivePoints);
+            console.log(pointNum);
-        //     console.log(pointNum);
+            console.log(lineVertices);
-        //     console.log(lineVertices);
+        }
-        // }
 
         return {
                 lineVertices : new Uint32Array(lineVertices),
@@ -484,6 +481,7 @@ class WebGL2WaveRender {
             this.lineVerticesMap.set(id, lineVertices);
             this.maskVerticesMap.set(id, maskVertices);
         }
+
         const lineVertices = this.lineVerticesMap.get(id);
         const maskVertices = this.maskVerticesMap.get(id);
 
@@ -559,7 +557,16 @@ class WebGL2WaveRender {
         this.render();
     }
 
-    render() {
+    /**
+     * 
+     * @param {{
+     *  type: 'common' | 'action'
+     * } | undefined} renderConfig 
+     */
+    render(renderConfig) {
+        renderConfig = renderConfig || { type: 'common' };
+        const needHiddenAnimation = globalSetting.renderAnimation && renderConfig.type === 'action';
+
         if (this.animationHandler !== undefined) {
             cancelAnimationFrame(this.animationHandler);
         }
@@ -595,8 +602,16 @@ class WebGL2WaveRender {
         let startTime = undefined;
         // 默认执行一个 300 ms 的动画
         const animationDuration = 300;
+        
+        if (needHiddenAnimation) {
+            this.elements.grid.classList.add('vcd-hidden');
+            this.elements.values.classList.add('vcd-hidden');
+        }
+        
         let animationHandler = this.animationHandler = requestAnimationFrame(drawWaves);
 
+        const _this = this;
+
         function linearAnimation(delta, oldVal, newVal) {
             return (1 - delta) * oldVal + delta * newVal;
         }
@@ -630,8 +645,8 @@ class WebGL2WaveRender {
                 const id = signal.link;
                 const wave = globalLookup.chango[id].wave;
 
-                // this.makeBitVertex(wave, globalLookup.time, true);
+                // _this.makeBitVertex(wave, globalLookup.time, true);
-                // this.makeVecVertex(wave, globalLookup.time, true);
+                // _this.makeVecVertex(wave, globalLookup.time, true);
 
                 const signalItem = globalLookup.chango[id];
                 if (!signalItem) {
@@ -644,7 +659,7 @@ class WebGL2WaveRender {
 
                 // 根据 lineVao 进行绘制            
                 if (lineVerticesMap.get(id) === undefined) {
-                    this.initVertice(id);
+                    _this.initVertice(id);
                 }
                 const lineVertices = lineVerticesMap.get(id);
                 const maskVertices = maskVerticesMap.get(id);
@@ -689,6 +704,11 @@ class WebGL2WaveRender {
                     pstate.oldXScale = pstate.xScale;
                     pstate.oldYStep = pstate.yStep;
                     pstate.oldYDuty = pstate.yDuty;
+
+                    if (needHiddenAnimation) {
+                        _this.elements.grid.classList.remove('vcd-hidden');
+                        _this.elements.values.classList.remove('vcd-hidden');
+                    }
                     return;
                 }
             }

test/render-line/main.js

@@ -59,8 +59,9 @@ window.onload = async () => {
     gl.clear(gl.COLOR_BUFFER_BIT);
 
     const points = [
-        0, -0.5,
+        0, 0,
-        0.5, -0.5,
+        0.5, 0,
+        0.7, 0
     ];
 
     drawMask(gl, program, points, { width: 0.06 });