{"id":"b02","course":"basic","section":"intro","order":2,"code":"B02","title":"TouchDesigner 基礎音像入門","kind":"video","durationSec":2715,"duration":"45:15","freePreview":false,"families":["CHOP","TOP"],"loopwiseLectureId":"22f70940","hasNotes":true,"notes":{"toc":[{"id":"s-1","text":"這個單元在做什麼","level":2},{"id":"s-2","text":"學 TD 的三個步驟","level":2},{"id":"s-3","text":"拆解一場鼓手的表演","level":2},{"id":"s-4","text":"音像互動的四個步驟","level":2},{"id":"s-5","text":"這次會用到的元件","level":2},{"id":"s-6","text":"先看成品","level":2},{"id":"s-7","text":"聲音進來：Audio File In 與 Audio Analysis","level":2},{"id":"s-8","text":"大鼓一下，圓圈就亮","level":2},{"id":"s-9","text":"Ramp 與 Blend Modes：加上顏色","level":2},{"id":"s-10","text":"Displace：讓光暈扭曲","level":2},{"id":"s-11","text":"後處理：模糊、殘影、雜訊","level":2},{"id":"s-12","text":"Particles GPU：跟著鼓點噴開的雪花","level":2},{"id":"s-13","text":"Out 與 Switch：在不同的視覺之間切換","level":2},{"id":"s-14","text":"幫雪花做後處理","level":2},{"id":"s-15","text":"Edge：加上外框線","level":2},{"id":"s-16","text":"Count：每打一下大鼓，就換一個畫面","level":2},{"id":"s-17","text":"課後練習","level":2},{"id":"s-18","text":"回顧：聲音、分析、處理、影響視覺","level":2},{"id":"s-19","text":"用自己的素材","level":2},{"id":"s-20","text":"常見問題","level":2},{"id":"s-21","text":"卡住的時候","level":2}],"segments":[{"html":"<h2 id=\"s-1\">這個單元在做什麼</h2>\n<p class=\"has-ts\"><span class=\"tsg\"><a class=\"ts\" href=\"#t=20\" data-t=\"20\" title=\"播放錄影 00:20\">00:20</a></span>這個單元把音樂跟視覺連起來，做一個基礎的音像互動。大鼓一打下去，畫面上的光暈就亮起來、再慢慢暗掉，雪花跟著鼓點噴開，大鼓每打一下，就切換到下一個畫面。</p>\n<p>開始做之前，哲宇先講學 TD 的路徑，再拆解一場鼓手的打鼓視覺化表演，看這類作品由哪幾層組成。接著照四個步驟，從零做出一個範例：取得聲音，分析出拍點，把訊號整理成用得上的數字，最後拿去影響視覺。</p>\n<p class=\"has-ts\"><span class=\"tsg\"><a class=\"ts\" href=\"#t=553\" data-t=\"553\" title=\"播放錄影 09:13\">09:13</a></span>哲宇說，即使是很單純的互動，「只要你大概做的好看，它效果跟視覺張力都會很不錯」。</p>\n<aside class=\"callout callout-key\" aria-label=\"這個單元帶走\"><p class=\"callout-title\">這個單元帶走</p><ol>\n<li>音像互動有四個步驟：聲音的取得、分析資料、後處理、影響視覺。</li>\n<li>聲音用 <code>Audio File In CHOP</code> 讀進來，接 <code>Audio Device Out CHOP</code> 才聽得到。Palette 裡的 Audio Analysis 幫你分析大鼓、小鼓和旋律。</li>\n<li>拍點本身只是 0 或 1。<code class=\"op\" data-family=\"CHOP\">Lag CHOP</code> 讓它瞬間亮起、慢慢消失，<code class=\"op\" data-family=\"CHOP\">Select CHOP</code> 只留要的頻道，<code class=\"op\" data-family=\"CHOP\">Math CHOP</code> 換成想要的範圍。</li>\n<li>不同的視覺接進 <code class=\"op\" data-family=\"TOP\">Switch TOP</code>，再用 <code class=\"op\" data-family=\"CHOP\">Count CHOP</code> 數大鼓的次數、<code class=\"op\" data-family=\"CHOP\">Limit CHOP</code> 讓它循環，畫面就跟著節奏切換。</li>\n<li>學 TD 先看夠多好的作品，知道終點在哪裡，再臨摹，最後用自己的素材發展作品。</li>\n</ol>\n</aside>"},{"locked":true,"id":"s-2","title":"學 TD 的三個步驟"},{"locked":true,"id":"s-3","title":"拆解一場鼓手的表演"},{"locked":true,"id":"s-4","title":"音像互動的四個步驟"},{"locked":true,"id":"s-5","title":"這次會用到的元件"},{"locked":true,"id":"s-6","title":"先看成品"},{"locked":true,"id":"s-7","title":"聲音進來：Audio File In 與 Audio Analysis"},{"locked":true,"id":"s-8","title":"大鼓一下，圓圈就亮"},{"locked":true,"id":"s-9","title":"Ramp 與 Blend Modes：加上顏色"},{"locked":true,"id":"s-10","title":"Displace：讓光暈扭曲"},{"locked":true,"id":"s-11","title":"後處理：模糊、殘影、雜訊"},{"locked":true,"id":"s-12","title":"Particles GPU：跟著鼓點噴開的雪花"},{"locked":true,"id":"s-13","title":"Out 與 Switch：在不同的視覺之間切換"},{"locked":true,"id":"s-14","title":"幫雪花做後處理"},{"locked":true,"id":"s-15","title":"Edge：加上外框線"},{"locked":true,"id":"s-16","title":"Count：每打一下大鼓，就換一個畫面"},{"locked":true,"id":"s-17","title":"課後練習"},{"locked":true,"id":"s-18","title":"回顧：聲音、分析、處理、影響視覺"},{"locked":true,"id":"s-19","title":"用自己的素材"},{"locked":true,"id":"s-20","title":"常見問題"},{"locked":true,"id":"s-21","title":"卡住的時候"}],"sections":21},"courseName":"TouchDesigner 前導班","buyUrl":"https://education.monolab.world/courses/basic","sectionTitle":"前導課程","prev":{"id":"b01","course":"basic","section":"intro","order":1,"code":"B01","title":"TouchDesigner 基礎教學操作","kind":"video","durationSec":1971,"duration":"32:51","freePreview":false,"families":["TOP","CHOP"]},"next":null}