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MarketplaceindicatorsAbsorption Detector WebGL

Absorption Detector WebGL

Free

Detect passive liquidity absorption from depth and candle response

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webglabsorptionorder-flowliquiditydeltahftadvanced
Free
Open in QuaTick IDE Edit in IDE
Version1.0.0
Updated2026-01-15
Compatiblecandlestick, heiken-ashi, line

Live Preview — BTC/USDT

About

WebGL-tagged absorption detector for high-volume candles that fail to continue through visible liquidity areas.


Inputs

• OHLCV bars from Quatick Charts

• Optional orderbook snapshots for depth-aware variants


Renderer

• WEBGL tagged for marketplace filtering and runtime selection

Outputs & Parameters

Outputs

Absorption Scorehistogram

Parameters

Absorption Window44
Tick Size1
Modedelta

Source Code

Edit in IDE
typescript
1/**
2 * Absorption Detector WebGL - Quatick Marketplace Indicator
3 * Renderer: WEBGL
4 * Tags: webgl, absorption, order-flow, liquidity, delta, hft
5 */
6 
7const metadata = {
8 "id": "absorption-detector-webgl",
9 "name": "Absorption Detector WebGL",
10 "renderer": "webgl",
11 "tags": [
12 "webgl",
13 "absorption",
14 "order-flow",
15 "liquidity",
16 "delta",
17 "hft"
18 ],
19 "version": "1.0.0"
20};
21const defaultParams = {
22 "lookback": 44,
23 "tickSize": 1,
24 "mode": "delta"
25};
26 
27interface BarData {
28 time: number;
29 open: number;
30 high: number;
31 low: number;
32 close: number;
33 volume?: number;
34}
35 
36interface OrderBookLevel {
37 price: number;
38 size: number;
39}
40 
41interface OrderBookSnapshot {
42 time: number;
43 bids: OrderBookLevel[];
44 asks: OrderBookLevel[];
45}
46 
47interface IndicatorPoint {
48 time: number;
49 value: number;
50 color?: string;
51}
52 
53function priceBucket(price: number, tickSize: number): number {
54 return Math.round(price / tickSize) * tickSize;
55}
56 
57function calculate(
58 bars: BarData[],
59 params = defaultParams,
60 orderbook: OrderBookSnapshot[] = []
61): IndicatorPoint[] {
62 const lookback = Math.max(1, Number(params.lookback ?? params.sessionBars ?? params.rows ?? 50));
63 const tickSize = Math.max(0.000001, Number(params.tickSize ?? 1));
64 const decay = Math.min(0.999, Math.max(0.01, Number(params.decay ?? 0.94)));
65 const profile = new Map<number, number>();
66 const outputs: IndicatorPoint[] = [];
67 
68 for (let i = 0; i < bars.length; i += 1) {
69 const bar = bars[i];
70 const start = Math.max(0, i - lookback + 1);
71 profile.clear();
72 
73 for (let j = start; j <= i; j += 1) {
74 const sourceBar = bars[j];
75 const bucket = priceBucket((sourceBar.high + sourceBar.low + sourceBar.close) / 3, tickSize);
76 const weight = Math.pow(decay, i - j);
77 const volume = Number(sourceBar.volume ?? 0) * weight;
78 profile.set(bucket, (profile.get(bucket) ?? 0) + volume);
79 }
80 
81 const snapshot = orderbook.find(book => book.time === bar.time) ?? orderbook[orderbook.length - 1];
82 if (snapshot) {
83 for (const level of [...snapshot.bids, ...snapshot.asks]) {
84 const bucket = priceBucket(level.price, tickSize);
85 profile.set(bucket, (profile.get(bucket) ?? 0) + level.size * Number(params.orderbookWeight ?? 1));
86 }
87 }
88 
89 let pocPrice = bar.close;
90 let maxVolume = 0;
91 for (const [price, volume] of profile.entries()) {
92 if (volume > maxVolume) {
93 maxVolume = volume;
94 pocPrice = price;
95 }
96 }
97 
98 const delta = (bar.close - bar.open) * Number(bar.volume ?? 0);
99 const normalizedDelta = maxVolume > 0 ? delta / maxVolume : 0;
100 const distanceFromPoc = tickSize > 0 ? (bar.close - pocPrice) / tickSize : 0;
101 const value = Number(params.mode === 'delta' ? normalizedDelta : params.mode === 'distance' ? distanceFromPoc : maxVolume);
102 
103 outputs.push({
104 time: bar.time,
105 value,
106 color: value >= 0 ? '#22c55e' : '#ef4444',
107 });
108 }
109 
110 return outputs;
111}
112 
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Changelog

v1.0.0
Added as advanced Quatick volume/orderbook indicator with renderer metadata.

2026-01-15

Marketplace | QuaTick