dreemgl
Version:
DreemGL is an open-source multi-screen prototyping framework for mediated environments, with a visual editor and shader styling for webGL and DALi runtimes written in JavaScript. As a toolkit for gpu-accelerated multiscreen development, DreemGL includes
727 lines (663 loc) • 34 kB
HTML
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CodeRay output</title>
<style type="text/css">
.CodeRay .line-numbers a {
text-decoration: inherit;
color: inherit;
}
body {
background-color: white;
padding: 0;
margin: 0;
}
.CodeRay {
background-color: hsl(0,0%,95%);
border: 1px solid silver;
color: black;
}
.CodeRay pre {
margin: 0px;
}
span.CodeRay { white-space: pre; border: 0px; padding: 2px; }
table.CodeRay { border-collapse: collapse; width: 100%; padding: 2px; }
table.CodeRay td { padding: 2px 4px; vertical-align: top; }
.CodeRay .line-numbers {
background-color: hsl(180,65%,90%);
color: gray;
text-align: right;
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
}
.CodeRay .line-numbers a {
background-color: hsl(180,65%,90%) ;
color: gray ;
text-decoration: none ;
}
.CodeRay .line-numbers pre {
word-break: normal;
}
.CodeRay .line-numbers a:target { color: blue ; }
.CodeRay .line-numbers .highlighted { color: red ; }
.CodeRay .line-numbers .highlighted a { color: red ; }
.CodeRay span.line-numbers { padding: 0px 4px; }
.CodeRay .line { display: block; float: left; width: 100%; }
.CodeRay .code { width: 100%; }
.CodeRay .debug { color: white ; background: blue ; }
.CodeRay .annotation { color:#007 }
.CodeRay .attribute-name { color:#b48 }
.CodeRay .attribute-value { color:#700 }
.CodeRay .binary { color:#549 }
.CodeRay .binary .char { color:#325 }
.CodeRay .binary .delimiter { color:#325 }
.CodeRay .char { color:#D20 }
.CodeRay .char .content { color:#D20 }
.CodeRay .char .delimiter { color:#710 }
.CodeRay .class { color:#B06; font-weight:bold }
.CodeRay .class-variable { color:#369 }
.CodeRay .color { color:#0A0 }
.CodeRay .comment { color:#777 }
.CodeRay .comment .char { color:#444 }
.CodeRay .comment .delimiter { color:#444 }
.CodeRay .constant { color:#036; font-weight:bold }
.CodeRay .decorator { color:#B0B }
.CodeRay .definition { color:#099; font-weight:bold }
.CodeRay .delimiter { color:black }
.CodeRay .directive { color:#088; font-weight:bold }
.CodeRay .docstring { color:#D42; }
.CodeRay .doctype { color:#34b }
.CodeRay .done { text-decoration: line-through; color: gray }
.CodeRay .entity { color:#800; font-weight:bold }
.CodeRay .error { color:#F00; background-color:#FAA }
.CodeRay .escape { color:#666 }
.CodeRay .exception { color:#C00; font-weight:bold }
.CodeRay .float { color:#60E }
.CodeRay .function { color:#06B; font-weight:bold }
.CodeRay .function .delimiter { color:#024; font-weight:bold }
.CodeRay .global-variable { color:#d70 }
.CodeRay .hex { color:#02b }
.CodeRay .id { color:#33D; font-weight:bold }
.CodeRay .include { color:#B44; font-weight:bold }
.CodeRay .inline { background-color: hsla(0,0%,0%,0.07); color: black }
.CodeRay .inline-delimiter { font-weight: bold; color: #666 }
.CodeRay .instance-variable { color:#33B }
.CodeRay .integer { color:#00D }
.CodeRay .imaginary { color:#f00 }
.CodeRay .important { color:#D00 }
.CodeRay .key { color: #606 }
.CodeRay .key .char { color: #60f }
.CodeRay .key .delimiter { color: #404 }
.CodeRay .keyword { color:#080; font-weight:bold }
.CodeRay .label { color:#970; font-weight:bold }
.CodeRay .local-variable { color:#950 }
.CodeRay .map .content { color:#808 }
.CodeRay .map .delimiter { color:#40A}
.CodeRay .map { background-color:hsla(200,100%,50%,0.06); }
.CodeRay .namespace { color:#707; font-weight:bold }
.CodeRay .octal { color:#40E }
.CodeRay .operator { }
.CodeRay .predefined { color:#369; font-weight:bold }
.CodeRay .predefined-constant { color:#069 }
.CodeRay .predefined-type { color:#0a8; font-weight:bold }
.CodeRay .preprocessor { color:#579 }
.CodeRay .pseudo-class { color:#00C; font-weight:bold }
.CodeRay .regexp { background-color:hsla(300,100%,50%,0.06); }
.CodeRay .regexp .content { color:#808 }
.CodeRay .regexp .delimiter { color:#404 }
.CodeRay .regexp .modifier { color:#C2C }
.CodeRay .reserved { color:#080; font-weight:bold }
.CodeRay .shell { background-color:hsla(120,100%,50%,0.06); }
.CodeRay .shell .content { color:#2B2 }
.CodeRay .shell .delimiter { color:#161 }
.CodeRay .string { background-color:hsla(0,100%,50%,0.05); }
.CodeRay .string .char { color: #b0b }
.CodeRay .string .content { color: #D20 }
.CodeRay .string .delimiter { color: #710 }
.CodeRay .string .modifier { color: #E40 }
.CodeRay .symbol { color:#A60 }
.CodeRay .symbol .content { color:#A60 }
.CodeRay .symbol .delimiter { color:#740 }
.CodeRay .tag { color:#070; font-weight:bold }
.CodeRay .type { color:#339; font-weight:bold }
.CodeRay .value { color: #088 }
.CodeRay .variable { color:#037 }
.CodeRay .insert { background: hsla(120,100%,50%,0.12) }
.CodeRay .delete { background: hsla(0,100%,50%,0.12) }
.CodeRay .change { color: #bbf; background: #007 }
.CodeRay .head { color: #f8f; background: #505 }
.CodeRay .head .filename { color: white; }
.CodeRay .delete .eyecatcher { background-color: hsla(0,100%,50%,0.2); border: 1px solid hsla(0,100%,45%,0.5); margin: -1px; border-bottom: none; border-top-left-radius: 5px; border-top-right-radius: 5px; }
.CodeRay .insert .eyecatcher { background-color: hsla(120,100%,50%,0.2); border: 1px solid hsla(120,100%,25%,0.5); margin: -1px; border-top: none; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; }
.CodeRay .insert .insert { color: #0c0; background:transparent; font-weight:bold }
.CodeRay .delete .delete { color: #c00; background:transparent; font-weight:bold }
.CodeRay .change .change { color: #88f }
.CodeRay .head .head { color: #f4f }
.CodeRay {
border: none;
}
</style>
</head>
<body>
<table class="CodeRay"><tr>
<td class="line-numbers"><pre><a href="#n1" name="n1">1</a>
<a href="#n2" name="n2">2</a>
<a href="#n3" name="n3">3</a>
<a href="#n4" name="n4">4</a>
<a href="#n5" name="n5">5</a>
<a href="#n6" name="n6">6</a>
<a href="#n7" name="n7">7</a>
<a href="#n8" name="n8">8</a>
<a href="#n9" name="n9">9</a>
<strong><a href="#n10" name="n10">10</a></strong>
<a href="#n11" name="n11">11</a>
<a href="#n12" name="n12">12</a>
<a href="#n13" name="n13">13</a>
<a href="#n14" name="n14">14</a>
<a href="#n15" name="n15">15</a>
<a href="#n16" name="n16">16</a>
<a href="#n17" name="n17">17</a>
<a href="#n18" name="n18">18</a>
<a href="#n19" name="n19">19</a>
<strong><a href="#n20" name="n20">20</a></strong>
<a href="#n21" name="n21">21</a>
<a href="#n22" name="n22">22</a>
<a href="#n23" name="n23">23</a>
<a href="#n24" name="n24">24</a>
<a href="#n25" name="n25">25</a>
<a href="#n26" name="n26">26</a>
<a href="#n27" name="n27">27</a>
<a href="#n28" name="n28">28</a>
<a href="#n29" name="n29">29</a>
<strong><a href="#n30" name="n30">30</a></strong>
<a href="#n31" name="n31">31</a>
<a href="#n32" name="n32">32</a>
<a href="#n33" name="n33">33</a>
<a href="#n34" name="n34">34</a>
<a href="#n35" name="n35">35</a>
<a href="#n36" name="n36">36</a>
<a href="#n37" name="n37">37</a>
<a href="#n38" name="n38">38</a>
<a href="#n39" name="n39">39</a>
<strong><a href="#n40" name="n40">40</a></strong>
<a href="#n41" name="n41">41</a>
<a href="#n42" name="n42">42</a>
<a href="#n43" name="n43">43</a>
<a href="#n44" name="n44">44</a>
<a href="#n45" name="n45">45</a>
<a href="#n46" name="n46">46</a>
<a href="#n47" name="n47">47</a>
<a href="#n48" name="n48">48</a>
<a href="#n49" name="n49">49</a>
<strong><a href="#n50" name="n50">50</a></strong>
<a href="#n51" name="n51">51</a>
<a href="#n52" name="n52">52</a>
<a href="#n53" name="n53">53</a>
<a href="#n54" name="n54">54</a>
<a href="#n55" name="n55">55</a>
<a href="#n56" name="n56">56</a>
<a href="#n57" name="n57">57</a>
<a href="#n58" name="n58">58</a>
<a href="#n59" name="n59">59</a>
<strong><a href="#n60" name="n60">60</a></strong>
<a href="#n61" name="n61">61</a>
<a href="#n62" name="n62">62</a>
<a href="#n63" name="n63">63</a>
<a href="#n64" name="n64">64</a>
<a href="#n65" name="n65">65</a>
<a href="#n66" name="n66">66</a>
<a href="#n67" name="n67">67</a>
<a href="#n68" name="n68">68</a>
<a href="#n69" name="n69">69</a>
<strong><a href="#n70" name="n70">70</a></strong>
<a href="#n71" name="n71">71</a>
<a href="#n72" name="n72">72</a>
<a href="#n73" name="n73">73</a>
<a href="#n74" name="n74">74</a>
<a href="#n75" name="n75">75</a>
<a href="#n76" name="n76">76</a>
<a href="#n77" name="n77">77</a>
<a href="#n78" name="n78">78</a>
<a href="#n79" name="n79">79</a>
<strong><a href="#n80" name="n80">80</a></strong>
<a href="#n81" name="n81">81</a>
<a href="#n82" name="n82">82</a>
<a href="#n83" name="n83">83</a>
<a href="#n84" name="n84">84</a>
<a href="#n85" name="n85">85</a>
<a href="#n86" name="n86">86</a>
<a href="#n87" name="n87">87</a>
<a href="#n88" name="n88">88</a>
<a href="#n89" name="n89">89</a>
<strong><a href="#n90" name="n90">90</a></strong>
<a href="#n91" name="n91">91</a>
<a href="#n92" name="n92">92</a>
<a href="#n93" name="n93">93</a>
<a href="#n94" name="n94">94</a>
<a href="#n95" name="n95">95</a>
<a href="#n96" name="n96">96</a>
<a href="#n97" name="n97">97</a>
<a href="#n98" name="n98">98</a>
<a href="#n99" name="n99">99</a>
<strong><a href="#n100" name="n100">100</a></strong>
<a href="#n101" name="n101">101</a>
<a href="#n102" name="n102">102</a>
<a href="#n103" name="n103">103</a>
<a href="#n104" name="n104">104</a>
<a href="#n105" name="n105">105</a>
<a href="#n106" name="n106">106</a>
<a href="#n107" name="n107">107</a>
<a href="#n108" name="n108">108</a>
<a href="#n109" name="n109">109</a>
<strong><a href="#n110" name="n110">110</a></strong>
<a href="#n111" name="n111">111</a>
<a href="#n112" name="n112">112</a>
<a href="#n113" name="n113">113</a>
<a href="#n114" name="n114">114</a>
<a href="#n115" name="n115">115</a>
<a href="#n116" name="n116">116</a>
<a href="#n117" name="n117">117</a>
<a href="#n118" name="n118">118</a>
<a href="#n119" name="n119">119</a>
<strong><a href="#n120" name="n120">120</a></strong>
<a href="#n121" name="n121">121</a>
<a href="#n122" name="n122">122</a>
<a href="#n123" name="n123">123</a>
<a href="#n124" name="n124">124</a>
<a href="#n125" name="n125">125</a>
<a href="#n126" name="n126">126</a>
<a href="#n127" name="n127">127</a>
<a href="#n128" name="n128">128</a>
<a href="#n129" name="n129">129</a>
<strong><a href="#n130" name="n130">130</a></strong>
<a href="#n131" name="n131">131</a>
<a href="#n132" name="n132">132</a>
<a href="#n133" name="n133">133</a>
<a href="#n134" name="n134">134</a>
<a href="#n135" name="n135">135</a>
<a href="#n136" name="n136">136</a>
<a href="#n137" name="n137">137</a>
<a href="#n138" name="n138">138</a>
<a href="#n139" name="n139">139</a>
<strong><a href="#n140" name="n140">140</a></strong>
<a href="#n141" name="n141">141</a>
<a href="#n142" name="n142">142</a>
<a href="#n143" name="n143">143</a>
<a href="#n144" name="n144">144</a>
<a href="#n145" name="n145">145</a>
<a href="#n146" name="n146">146</a>
<a href="#n147" name="n147">147</a>
<a href="#n148" name="n148">148</a>
<a href="#n149" name="n149">149</a>
<strong><a href="#n150" name="n150">150</a></strong>
<a href="#n151" name="n151">151</a>
<a href="#n152" name="n152">152</a>
<a href="#n153" name="n153">153</a>
<a href="#n154" name="n154">154</a>
<a href="#n155" name="n155">155</a>
<a href="#n156" name="n156">156</a>
<a href="#n157" name="n157">157</a>
<a href="#n158" name="n158">158</a>
<a href="#n159" name="n159">159</a>
<strong><a href="#n160" name="n160">160</a></strong>
<a href="#n161" name="n161">161</a>
<a href="#n162" name="n162">162</a>
<a href="#n163" name="n163">163</a>
<a href="#n164" name="n164">164</a>
<a href="#n165" name="n165">165</a>
<a href="#n166" name="n166">166</a>
<a href="#n167" name="n167">167</a>
<a href="#n168" name="n168">168</a>
<a href="#n169" name="n169">169</a>
<strong><a href="#n170" name="n170">170</a></strong>
<a href="#n171" name="n171">171</a>
<a href="#n172" name="n172">172</a>
<a href="#n173" name="n173">173</a>
<a href="#n174" name="n174">174</a>
<a href="#n175" name="n175">175</a>
<a href="#n176" name="n176">176</a>
<a href="#n177" name="n177">177</a>
<a href="#n178" name="n178">178</a>
<a href="#n179" name="n179">179</a>
<strong><a href="#n180" name="n180">180</a></strong>
<a href="#n181" name="n181">181</a>
<a href="#n182" name="n182">182</a>
<a href="#n183" name="n183">183</a>
<a href="#n184" name="n184">184</a>
<a href="#n185" name="n185">185</a>
<a href="#n186" name="n186">186</a>
<a href="#n187" name="n187">187</a>
<a href="#n188" name="n188">188</a>
<a href="#n189" name="n189">189</a>
<strong><a href="#n190" name="n190">190</a></strong>
<a href="#n191" name="n191">191</a>
<a href="#n192" name="n192">192</a>
<a href="#n193" name="n193">193</a>
<a href="#n194" name="n194">194</a>
<a href="#n195" name="n195">195</a>
<a href="#n196" name="n196">196</a>
<a href="#n197" name="n197">197</a>
<a href="#n198" name="n198">198</a>
<a href="#n199" name="n199">199</a>
<strong><a href="#n200" name="n200">200</a></strong>
<a href="#n201" name="n201">201</a>
<a href="#n202" name="n202">202</a>
<a href="#n203" name="n203">203</a>
<a href="#n204" name="n204">204</a>
<a href="#n205" name="n205">205</a>
<a href="#n206" name="n206">206</a>
<a href="#n207" name="n207">207</a>
<a href="#n208" name="n208">208</a>
<a href="#n209" name="n209">209</a>
<strong><a href="#n210" name="n210">210</a></strong>
<a href="#n211" name="n211">211</a>
<a href="#n212" name="n212">212</a>
<a href="#n213" name="n213">213</a>
<a href="#n214" name="n214">214</a>
<a href="#n215" name="n215">215</a>
<a href="#n216" name="n216">216</a>
<a href="#n217" name="n217">217</a>
<a href="#n218" name="n218">218</a>
<a href="#n219" name="n219">219</a>
<strong><a href="#n220" name="n220">220</a></strong>
<a href="#n221" name="n221">221</a>
<a href="#n222" name="n222">222</a>
<a href="#n223" name="n223">223</a>
<a href="#n224" name="n224">224</a>
<a href="#n225" name="n225">225</a>
<a href="#n226" name="n226">226</a>
<a href="#n227" name="n227">227</a>
<a href="#n228" name="n228">228</a>
<a href="#n229" name="n229">229</a>
<strong><a href="#n230" name="n230">230</a></strong>
<a href="#n231" name="n231">231</a>
<a href="#n232" name="n232">232</a>
<a href="#n233" name="n233">233</a>
<a href="#n234" name="n234">234</a>
<a href="#n235" name="n235">235</a>
<a href="#n236" name="n236">236</a>
<a href="#n237" name="n237">237</a>
<a href="#n238" name="n238">238</a>
<a href="#n239" name="n239">239</a>
<strong><a href="#n240" name="n240">240</a></strong>
<a href="#n241" name="n241">241</a>
<a href="#n242" name="n242">242</a>
<a href="#n243" name="n243">243</a>
<a href="#n244" name="n244">244</a>
<a href="#n245" name="n245">245</a>
<a href="#n246" name="n246">246</a>
<a href="#n247" name="n247">247</a>
<a href="#n248" name="n248">248</a>
<a href="#n249" name="n249">249</a>
<strong><a href="#n250" name="n250">250</a></strong>
<a href="#n251" name="n251">251</a>
<a href="#n252" name="n252">252</a>
<a href="#n253" name="n253">253</a>
<a href="#n254" name="n254">254</a>
<a href="#n255" name="n255">255</a>
<a href="#n256" name="n256">256</a>
<a href="#n257" name="n257">257</a>
<a href="#n258" name="n258">258</a>
<a href="#n259" name="n259">259</a>
<strong><a href="#n260" name="n260">260</a></strong>
<a href="#n261" name="n261">261</a>
<a href="#n262" name="n262">262</a>
<a href="#n263" name="n263">263</a>
<a href="#n264" name="n264">264</a>
<a href="#n265" name="n265">265</a>
<a href="#n266" name="n266">266</a>
<a href="#n267" name="n267">267</a>
<a href="#n268" name="n268">268</a>
<a href="#n269" name="n269">269</a>
<strong><a href="#n270" name="n270">270</a></strong>
<a href="#n271" name="n271">271</a>
<a href="#n272" name="n272">272</a>
<a href="#n273" name="n273">273</a>
<a href="#n274" name="n274">274</a>
<a href="#n275" name="n275">275</a>
<a href="#n276" name="n276">276</a>
<a href="#n277" name="n277">277</a>
<a href="#n278" name="n278">278</a>
<a href="#n279" name="n279">279</a>
<strong><a href="#n280" name="n280">280</a></strong>
<a href="#n281" name="n281">281</a>
<a href="#n282" name="n282">282</a>
<a href="#n283" name="n283">283</a>
</pre></td>
<td class="code"><pre><span class="comment">/* DreemGL is a collaboration between Teeming Society & Samsung Electronics, sponsored by Samsung and others.
Copyright 2015-2016 Teeming Society. Licensed under the Apache License, Version 2.0 (the "License"); You may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations under the License.*/</span>
<span class="comment">// some shapes based on http://iquilezles.org/www/articles/distfunctions/distfunctions.htm</span>
define(<span class="keyword">function</span> (require, exports) {
exports.<span class="function">roundedrectdistance</span> = <span class="keyword">function</span>(sized, width, height, topleftcorner, toprightcorner, bottomleftcorner, bottomrightcorner){
<span class="keyword">var</span> c1 = vec2(topleftcorner-<span class="float">0.5</span> , topleftcorner -<span class="float">0.5</span>);
<span class="keyword">var</span> c2 = vec2(bottomleftcorner -<span class="float">0.5</span>, height - bottomleftcorner -<span class="float">0.5</span>);
<span class="keyword">var</span> c3 = vec2(width - bottomrightcorner -<span class="float">.50</span> , height - bottomrightcorner -<span class="float">.5</span>);
<span class="keyword">var</span> c4 = vec2(width - toprightcorner - <span class="float">.50</span>, toprightcorner -<span class="float">0.5</span> );
<span class="keyword">var</span> dist = <span class="float">0.0</span>
<span class="keyword">if</span> (sized.x <= c1.x && sized.y < c1.y) {
dist = distcircle(sized - c1, topleftcorner);
} <span class="keyword">else</span> {
<span class="keyword">if</span> (sized.x >= c3.x && sized.y >= c3.y) {
dist = distcircle(sized - c3, bottomrightcorner);
} <span class="keyword">else</span> {
<span class="keyword">if</span> (sized.x <= c2.x && sized.y >= c2.y) {
dist = distcircle(sized - c2, bottomleftcorner);
} <span class="keyword">else</span> {
<span class="keyword">if</span> (sized.x >= c4.x && sized.y <= c4.y) {
dist = distcircle(sized - c4, toprightcorner);
} <span class="keyword">else</span> {
dist = max(max(-sized.y, sized.y-height), max(-sized.x, sized.x-width))
}
}
}
}
<span class="keyword">return</span> dist;
}
exports.<span class="function">circle</span> = <span class="keyword">function</span> (texpos, radius) {
<span class="keyword">var</span> c = texpos - vec2(<span class="float">0.5</span>);
<span class="keyword">var</span> distance = length(c) - radius;
<span class="keyword">var</span> sdf = distance < <span class="integer">0</span>. ? <span class="integer">1</span>. : <span class="float">0.0</span>;
<span class="keyword">return</span> sdf;
}
exports.<span class="function">distcircle</span> = <span class="keyword">function</span> (texpos, radius) {
<span class="keyword">var</span> c = texpos - vec2(<span class="float">0.5</span>);
<span class="keyword">var</span> distance = length(c) - radius;
<span class="keyword">return</span> distance;
}
<span class="comment">//Sphere - signed</span>
exports.<span class="function">sdSphere</span> = <span class="keyword">function</span> (p, s) {
<span class="keyword">return</span> length(p) - s;
}
<span class="comment">//Box - unsigned</span>
exports.<span class="function">udBox</span> = <span class="keyword">function</span> (p, b) {
<span class="keyword">return</span> length(max(abs(p) - b, <span class="float">0.0</span>));
}
<span class="comment">//Round Box - unsigned</span>
exports.<span class="function">udRoundBox</span> = <span class="keyword">function</span>(p, b, r) {
<span class="keyword">return</span> length(max(abs(p) - b, <span class="float">0.0</span>)) - r;
}
<span class="comment">//Box - signed</span>
exports.<span class="function">sdBox</span> = <span class="keyword">function</span>(p, b) {
<span class="keyword">var</span> d = abs(p) - b;
<span class="keyword">return</span> min(max(d.x, max(d.y, d.z)), <span class="float">0.0</span>) +
length(max(d, <span class="float">0.0</span>));
}
<span class="comment">//Torus - signed</span>
exports.<span class="function">sdTorus</span> = <span class="keyword">function</span>(p, t) {
<span class="keyword">var</span> q = vec2(length(p.xz) - t.x, p.y);
<span class="keyword">return</span> length(q) - t.y;
}
<span class="comment">//Cylinder - signed</span>
exports.<span class="function">sdCylinder</span> = <span class="keyword">function</span>(p, c) {
<span class="keyword">return</span> length(p.xz - c.xy) - c.z;
}
<span class="comment">//Cone - signed</span>
exports.<span class="function">sdCone</span> = <span class="keyword">function</span>(p, c) {
<span class="comment">// c must be normalized</span>
<span class="keyword">var</span> q = length(p.xy);
<span class="keyword">return</span> dot(c, vec2(q, p.z));
}
<span class="comment">//Plane - signed</span>
exports.<span class="function">sdPlane</span> = <span class="keyword">function</span>(p, n) {
<span class="comment">// n must be normalized</span>
<span class="keyword">return</span> dot(p, n.xyz) + n.w;
}
<span class="comment">//Hexagonal Prism - signed</span>
exports.<span class="function">sdHexPrism</span> = <span class="keyword">function</span>(p, h) {
<span class="keyword">var</span> q = abs(p);
<span class="keyword">return</span> max(q.z - h.y, max((q.x * <span class="float">0.866025</span> + q.y * <span class="float">0.5</span>), q.y) - h.x);
}
<span class="comment">//Triangular Prism - signed</span>
exports.<span class="function">sdTriPrism</span> = <span class="keyword">function</span>(p, h) {
<span class="keyword">var</span> q = abs(p);
<span class="keyword">return</span> max(q.z - h.y, max(q.x * <span class="float">0.866025</span> + p.y * <span class="float">0.5</span>, -p.y) - h.x * <span class="float">0.5</span>);
}
<span class="comment">//Capsule / Line - signed</span>
exports.<span class="function">sdCapsule</span> = <span class="keyword">function</span>(p, a, b, r) {
<span class="keyword">var</span> pa = p - a,
ba = b - a;
<span class="keyword">var</span> h = clamp(dot(pa, ba) / dot(ba, ba), <span class="float">0.0</span>, <span class="float">1.0</span>);
<span class="keyword">return</span> length(pa - ba * h) - r;
}
<span class="comment">//Capped cylinder - signed</span>
exports.<span class="function">sdCappedCylinder</span> = <span class="keyword">function</span>(p, h) {
<span class="keyword">var</span> d = abs(vec2(length(p.xz), p.y)) - h;
<span class="keyword">return</span> min(max(d.x, d.y), <span class="float">0.0</span>) + length(max(d, <span class="float">0.0</span>));
}
<span class="comment">//Triangle - unsigned</span>
exports.<span class="function">dot2</span> = <span class="keyword">function</span>(v) {
<span class="keyword">return</span> dot(v, v);
}
exports.<span class="function">udTriangle</span> = <span class="keyword">function</span> (p, a, b, c) {
<span class="keyword">var</span> ba = b - a;
<span class="keyword">var</span> pa = p - a;
<span class="keyword">var</span> cb = c - b;
<span class="keyword">var</span> pb = p - b;
<span class="keyword">var</span> ac = a - c;
<span class="keyword">var</span> pc = p - c;
<span class="keyword">var</span> nor = cross(ba, ac);
<span class="keyword">return</span> sqrt(
(sign(dot(cross(ba, nor), pa)) +
sign(dot(cross(cb, nor), pb)) +
sign(dot(cross(ac, nor), pc)) < <span class="float">2.0</span>)
?
min(min(
dot2(ba * clamp(dot(ba, pa) / dot2(ba), <span class="float">0.0</span>, <span class="float">1.0</span>) - pa),
dot2(cb * clamp(dot(cb, pb) / dot2(cb), <span class="float">0.0</span>, <span class="float">1.0</span>) - pb)),
dot2(ac * clamp(dot(ac, pc) / dot2(ac), <span class="float">0.0</span>, <span class="float">1.0</span>) - pc))
:
dot(nor, pa) * dot(nor, pa) / dot2(nor));
}
exports.<span class="function">udQuad</span> = <span class="keyword">function</span>(p, a, b, c, d) {
<span class="keyword">var</span> ba = b - a;
<span class="keyword">var</span> pa = p - a;
<span class="keyword">var</span> cb = c - b;
<span class="keyword">var</span> pb = p - b;
<span class="keyword">var</span> dc = d - c;
<span class="keyword">var</span> pc = p - c;
<span class="keyword">var</span> ad = a - d;
<span class="keyword">var</span> pd = p - d;
<span class="keyword">var</span> nor = cross(ba, ad);
<span class="keyword">return</span> sqrt(
(sign(dot(cross(ba, nor), pa)) +
sign(dot(cross(cb, nor), pb)) +
sign(dot(cross(dc, nor), pc)) +
sign(dot(cross(ad, nor), pd)) < <span class="float">3.0</span>)
?
min(min(min(
dot2(ba * clamp(dot(ba, pa) / dot2(ba), <span class="float">0.0</span>, <span class="float">1.0</span>) - pa),
dot2(cb * clamp(dot(cb, pb) / dot2(cb), <span class="float">0.0</span>, <span class="float">1.0</span>) - pb)),
dot2(dc * clamp(dot(dc, pc) / dot2(dc), <span class="float">0.0</span>, <span class="float">1.0</span>) - pc)),
dot2(ad * clamp(dot(ad, pd) / dot2(ad), <span class="float">0.0</span>, <span class="float">1.0</span>) - pd))
:
dot(nor, pa) * dot(nor, pa) / dot2(nor));
}
<span class="comment">//Capped Cone - signed</span>
exports.<span class="function">sdCappedCone</span> = <span class="keyword">function</span>(p, c) {
<span class="keyword">var</span> q = vec2(length(p.xz), p.y);
<span class="keyword">var</span> v = vec2(c.z * c.y / c.x, -c.z);
<span class="keyword">var</span> w = v - q;
<span class="keyword">var</span> vv = vec2(dot(v, v), v.x * v.x);
<span class="keyword">var</span> qv = vec2(dot(v, w), v.x * w.x);
<span class="keyword">var</span> d = max(qv, <span class="float">0.0</span>) * qv / vv;
<span class="keyword">return</span> sqrt(dot(w, w) - max(d.x, d.y)) * sign(max(q.y * v.x - q.x * v.y, w.y));
}
<span class="comment">//Torus82 - signed</span>
exports.<span class="function">sdTorus82</span> = <span class="keyword">function</span>(p, t) {
<span class="keyword">var</span> q = vec2(length2(p.xz) - t.x, p.y);
<span class="keyword">return</span> length8(q) - t.y;
}
<span class="comment">//Torus88 - signed</span>
exports.<span class="function">sdTorus88</span> = <span class="keyword">function</span>(p, t) {
<span class="keyword">var</span> q = vec2(length8(p.xz) - t.x, p.y);
<span class="keyword">return</span> length8(q) - t.y;
}
<span class="comment">//Union</span>
exports.<span class="function">opU</span> = <span class="keyword">function</span>(d1, d2) {
<span class="keyword">return</span> min(d1, d2);
}
<span class="comment">//Substraction</span>
exports.<span class="function">opS</span> = <span class="keyword">function</span>(d1, d2) {
<span class="keyword">return</span> max(-d1, d2);
}
<span class="comment">//Intersection</span>
exports.<span class="function">opI</span> = <span class="keyword">function</span>(d1, d2) {
<span class="keyword">return</span> max(d1, d2);
}
exports.<span class="function">union</span> = <span class="keyword">function</span>(d1, d2){
<span class="keyword">return</span> min(d1, d2)
}
exports.<span class="function">intersect</span> = <span class="keyword">function</span>(d1, d2){
<span class="keyword">return</span> max(d1,d2)
}
exports.<span class="function">subtract</span> = <span class="keyword">function</span>(d1, d2){
<span class="keyword">return</span> max(-d1,d2)
}
exports.<span class="function">circle</span> = <span class="keyword">function</span>(p, x, y, radius){
<span class="keyword">return</span> distance(p,vec2(x,y)) - radius
}
exports.<span class="function">box</span> = <span class="keyword">function</span>(p, left, top, width, height){
<span class="keyword">var</span> xy = vec2(left, top)
<span class="keyword">var</span> hwh = vec2(<span class="float">.5</span>*width, <span class="float">.5</span>*height)
<span class="keyword">var</span> d = abs(p - xy-hwh) - hwh
<span class="keyword">return</span> min(max(d.x,d.y),<span class="integer">0</span>.) + length(max(d,<span class="integer">0</span>.))
}
exports.<span class="function">roundbox</span> = <span class="keyword">function</span>(p, left, top, width, height, radius){
<span class="keyword">var</span> rad2 = vec2(radius,radius)
<span class="keyword">var</span> hwh = vec2(<span class="float">.5</span>*width, <span class="float">.5</span>*height)
<span class="keyword">var</span> xy = vec2(left, top)
<span class="keyword">return</span> length(max(abs(p - xy - hwh) - (hwh - <span class="integer">2</span>. * rad2), <span class="integer">0</span>.)) - <span class="integer">2</span>. * radius
}
exports.<span class="function">line</span> = <span class="keyword">function</span>(p, left, top, right, bottom, radius){
<span class="keyword">var</span> a = vec2(left, top)
<span class="keyword">var</span> b = vec2(right, bottom)
<span class="keyword">var</span> pa = p - a, ba = b - a
<span class="keyword">var</span> h = clamp(dot(pa,ba)/dot(ba,ba), <span class="integer">0</span>., <span class="integer">1</span>.)
<span class="keyword">return</span> length(pa - ba * h) - radius
}
exports.<span class="function">drawField</span> = <span class="keyword">function</span>(coord, field, color){
<span class="keyword">var</span> edge = length(vec2(length(dFdx(coord)), length(dFdy(coord)))) * SQRT_1_2
<span class="keyword">return</span> vec4(color, smoothstep(-edge, edge, field))
}
exports.<span class="function">smoothpoly</span> = <span class="keyword">function</span>(a, b, k){
<span class="keyword">var</span> h = clamp( <span class="float">0.5</span>+<span class="float">0.5</span>*(b-a)/k, <span class="float">0.0</span>, <span class="float">1.0</span> )
<span class="keyword">return</span> mix( b, a, h ) - k*h*(<span class="float">1.0</span>-h)
}
exports.<span class="function">smoothpow</span> = <span class="keyword">function</span>(a, b, k){
a = pow( a, k ); b = pow( b, k )
<span class="keyword">return</span> pow( (a*b)/(a+b), <span class="float">1.0</span>/k )
}
exports.<span class="function">smoothexp</span> = <span class="keyword">function</span>(a, b, k){
<span class="keyword">var</span> res = exp( -k*a ) + exp( -k*b )
<span class="keyword">return</span> -log( res )/k
}
})
</pre></td>
</tr></table>
</body>
</html>