Aurora Field Pointer Trail Effect
Complete a pointer light-trail effect in an aurora field scene: includes real content, actionable controls, clear status feedback, and responsive layouts across sizes.
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<title>Aurora Field Pointer Trail Effect</title>
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<header class="mast"><div><span class="eyebrow">paper / Cursor trail effect / INTERMEDIATE</span><h1>Aurora Field Pointer Trail Effect</h1><p class="intro">Complete a pointer light-trail effect in an aurora field scene: includes real content, actionable controls, clear status feedback, and responsive layouts across sizes.</p></div><span class="scenario">Aurora Field</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>Master the semantic structure, responsive layout, keyboard interaction, and state synchronization of a pointer trail effect.</span></aside><section class="demo" aria-label="Aurora Field Pointer Trail Effect Interaction Area"><div class="workflow-compare"><form id="workflowCompareControls" class="compare-controls"><fieldset><legend>Reference Channel</legend><label><input type="radio" name="workflowChannel" value="A" checked>A · Green Light Curtain</label><label><input type="radio" name="workflowChannel" value="B">B · magenta light band</label></fieldset><label>Exposure Time Weight<input id="workflowCompareWeight" type="range" min="10" max="90" value="50"><output id="workflowCompareWeightValue">50 seconds</output></label><label><input id="workflowCompareFreeze" type="checkbox">Freeze current version</label><button id="workflowCompareCapture" class="action primary" type="button">Sample and save exposure</button><ol id="workflowCompareShelf" aria-label="Version Sampling Record"></ol></form><section class="compare-stage"><header><span class="eyebrow">Aurora Field COMPARE</span><h2>Aurora A/B Comparison</h2><output id="workflowCompareLive">Version A waiting for sampling</output></header><section id="workflowCore" class="workflow-core compare-core" data-compare-channel="A" style="--compare-split:50%"><!-- 11DZ_CORE_START:creative-effects-cursor-trail --><div class="cursor-trail-lab" data-trail-layout="aurora-band"><section class="trail-stage"><canvas id="trailCanvas" width="960" height="460" tabindex="0" aria-label="Aurora Field pointer trail canvas; move the pointer or use the arrow keys to draw trails" aria-describedby="trailHelp">Your browser does not support Canvas.</canvas><div><span>Aurora Field</span><h2>Aurora trails cross the observation band and leave a colorful afterglow</h2><p id="trailHelp">Move the mouse, touch the canvas, or focus it and use the arrow keys to draw.</p></div></section><aside class="trail-controls panel"><span class="eyebrow">CURSOR TRAIL</span><h2>Aurora Observation Zone</h2><label>Light trail length <input id="trailLength" type="range" min="12" max="90" value="72" data-core-bridge="creative-effects-cursor-trail"><output id="trailLengthValue">72</output></label><label>Light Dot Size <input id="trailSize" type="range" min="3" max="18" value="6"><output id="trailSizeValue">6px</output></label><button id="trailClear" class="action" type="button">Clear light trail</button></aside></div><!-- 11DZ_CORE_END --></section></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:creative-effects-cursor-trail */
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/* 11DZ_CORE_SCRIPT_END */
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workflowBridgeReset();
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