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38 lines
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<title>Light.clear_occluders — Ludic</title>
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<meta name="description" content="Forget every occluder — call once per frame before re-registering.">
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<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-light.html">Light</a> <span>›</span> <span class="here">Light.clear_occluders</span></div>
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<div class="item-head">
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<span class="kind-badge kind-method">method</span>
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<h1 id="top">Light.clear_occluders</h1>
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</div>
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<code class="sig">Light.clear_occluders()</code>
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<div class="desc"><p>Forgets every rectangle previously passed to <a href="light-occlude"><code>Light.occlude</code></a>. Occluders accumulate across calls and persist between frames, so a game that casts shadows calls this once at the top of its render phase and then re-registers the walls that should block light this frame — the same clear-then-rebuild rhythm as an immediate-mode draw list. With no occluders registered, <a href="light-point"><code>Light.point</code></a> lights its whole radius unobstructed.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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property Tag { v: int = 0 }
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model Marker { Tag }
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handler Render phase Update {
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Screen.clear(0)
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Light.clear_occluders() # start the frame with no shadows
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Light.occlude(90, 60, 6, 40)
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Light.point(40, 80, 100, Color.rgb(255, 255, 255), 1.0)
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Screen.show()
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}
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}</pre></div>
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