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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title>Mu - linux/apps/raytracing/ray.mu</title>
+<meta name="Generator" content="Vim/8.2">
+<meta name="plugin-version" content="vim8.1_v2">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=,use_input_for_pc=fallback">
+<meta name="colorscheme" content="minimal-light">
+<style>
+<!--
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+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
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+  return true;
+}
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+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/linux/apps/raytracing/ray.mu'>https://github.com/akkartik/mu/blob/main/linux/apps/raytracing/ray.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="PreProc">type</span> ray <span class="Delimiter">{</span>
+<span id="L2" class="LineNr"> 2 </span>  orig: vec3  <span class="muComment"># point</span>
+<span id="L3" class="LineNr"> 3 </span>  dir: vec3
+<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">}</span>
+<span id="L5" class="LineNr"> 5 </span>
+<span id="L6" class="LineNr"> 6 </span><span class="muComment"># A little different from the constructor at <a href="https://raytracing.github.io/books/RayTracingInOneWeekend.html">https://raytracing.github.io/books/RayTracingInOneWeekend.html</a></span>
+<span id="L7" class="LineNr"> 7 </span><span class="muComment"># We immediately normalize the direction vector so we don't have to keep doing</span>
+<span id="L8" class="LineNr"> 8 </span><span class="muComment"># so.</span>
+<span id="L9" class="LineNr"> 9 </span><span class="PreProc">fn</span> <span class="muFunction">initialize-ray</span> _self: (addr ray), o: (addr vec3), d: (addr vec3) <span class="Delimiter">{</span>
+<span id="L10" class="LineNr">10 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr ray) <span class="Special">&lt;-</span> copy _self
+<span id="L11" class="LineNr">11 </span>  <span class="PreProc">var</span> dest/eax: (addr vec3) <span class="Special">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, orig
+<span id="L12" class="LineNr">12 </span>  copy-object o, dest
+<span id="L13" class="LineNr">13 </span>  dest <span class="Special">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, dir
+<span id="L14" class="LineNr">14 </span>  vec3-unit d, dest
+<span id="L15" class="LineNr">15 </span><span class="Delimiter">}</span>
+<span id="L16" class="LineNr">16 </span>
+<span id="L17" class="LineNr">17 </span><span class="PreProc">fn</span> <span class="muFunction">ray-at</span> _self: (addr ray), t: float, out: (addr vec3) <span class="Delimiter">{</span>
+<span id="L18" class="LineNr">18 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr ray) <span class="Special">&lt;-</span> copy _self
+<span id="L19" class="LineNr">19 </span>  <span class="PreProc">var</span> src/eax: (addr vec3) <span class="Special">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, dir
+<span id="L20" class="LineNr">20 </span>  copy-object src, out
+<span id="L21" class="LineNr">21 </span>  vec3-scale-up out, t
+<span id="L22" class="LineNr">22 </span>  src <span class="Special">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, orig
+<span id="L23" class="LineNr">23 </span>  vec3-add-to out, src
+<span id="L24" class="LineNr">24 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->