\n\n2026-09-29（二）19:00–21:32 線上直播（錄影 2:32:19）
\n
上一堂用滑鼠做出了第一支筆刷，這一堂要回答的問題是：既然要用程式畫一幅畫，要從哪裡著手？哲宇先從大家的作業看起，再拿「重複」當主線往下走。磚牆一塊一塊換顏色，花瓣一片一片轉成一圈，一小塊圖片沿著滑鼠一直蓋下去，就是筆刷。整堂做了五個示範：色票與 if／else、環狀的花、影像筆刷、取座標小工具、花朵印章網格，中間穿插四件 Art Blocks 作品，看別人怎麼用同樣的重複做出圖騰感。最後的作業是「作品一：動態幾何」。
\n"},{"locked":true,"id":"s-2","title":"課程網站：筆記、互動模組與資源"},{"locked":true,"id":"s-3","title":"AI 時代，為什麼還要先手打"},{"locked":true,"id":"s-4","title":"作業賞析：軌跡、比例、異材質與配色"},{"locked":true,"id":"s-5","title":"小示範：把色票變成清單"},{"locked":true,"id":"s-6","title":"作業賞析（續）：先畫構圖，再交給 AI"},{"locked":true,"id":"s-7","title":"新媒體藝術在哪裡發生：團隊、案子與參數時間軸"},{"locked":true,"id":"s-8","title":"這堂的主線：重複、迴圈與函數"},{"locked":true,"id":"s-9","title":"示範：用餘數和 if／else 排顏色"},{"locked":true,"id":"s-10","title":"示範：環狀的花"},{"locked":true,"id":"s-11","title":"示範：讓花長出變化"},{"locked":true,"id":"s-12","title":"作品觀摩：Archetype 與遞迴"},{"locked":true,"id":"s-13","title":"示範：影像筆刷"},{"locked":true,"id":"s-14","title":"作品觀摩：Trossets 的格線拼圖"},{"locked":true,"id":"s-15","title":"示範：筆刷系統"},{"locked":true,"id":"s-16","title":"作品觀摩：Fidenza 與向量場"},{"locked":true,"id":"s-17","title":"回顧與 blendMode"},{"locked":true,"id":"s-18","title":"示範：取座標小工具"},{"locked":true,"id":"s-19","title":"示範：花朵印章網格"},{"locked":true,"id":"s-20","title":"課堂問答"},{"locked":true,"id":"s-21","title":"作業與下一堂"},{"locked":true,"id":"s-22","title":"卡住的時候"},{"locked":true,"id":"s-23","title":"延伸資源"}],"widgets":["random","variable","transform","forloop","sincos","noise","vertex","func","grid","pushpop"],"links":[{"group":"延伸資源","text":"260929 colors demo","href":"https://openprocessing.org/@cheyuwu/3022625"},{"group":"延伸資源","text":"260929 angle demo","href":"https://openprocessing.org/@cheyuwu/3022662"},{"group":"延伸資源","text":"brush demo class 1-2","href":"https://openprocessing.org/@cheyuwu/3022716"},{"group":"延伸資源","text":"260929 shape demo","href":"https://openprocessing.org/@cheyuwu/3022822"},{"group":"延伸資源","text":"vertex 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of Emotion","href":"https://www.artblocks.io/collection/act-of-emotion-by-kelly-milligan"},{"group":"延伸資源","text":"Trossets","href":"https://www.artblocks.io/collection/trossets-by-anna-carreras"},{"group":"延伸資源","text":"Fidenza","href":"https://www.artblocks.io/collection/fidenza-by-tyler-hobbs"},{"group":"延伸資源","text":"叁式 Ultra Combos","href":"https://ultracombos.com/"},{"group":"延伸資源","text":"豪華朗機工（ART PRESS Asia 專訪）","href":"https://theartpressasia.com/2020/01/14/artist-is-a-special-kind-of-people-with-smart-and-foolish-at-the-same-time-interveiw-with-luxurylogico/"},{"group":"延伸資源","text":"十三行互動","href":"http://13techart.com/"},{"group":"延伸資源","text":"黑川互動媒體藝術","href":"https://www.peppercorns.com.tw/"},{"group":"延伸資源","text":"Dimension Plus","href":"https://www.dimensionplus.co/"},{"group":"延伸資源","text":"Moment Factory","href":"https://www.momentfactory.com/"},{"group":"延伸資源","text":"Local Projects","href":"https://localprojects.com/"},{"group":"延伸資源","text":"Volvox 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讓東西跟著滑鼠速度變。","part":"作業賞析"},{"t":"28:13","sec":1693,"title":"作業改交 Hahow","note":"Hahow 為主，像部落格一樣放靈感板、嘗試與變體；最漂亮的畫面貼 Discord。","part":"作業賞析"},{"t":"29:46","sec":1786,"title":"回答問題：新媒體藝術的公司與案子、參數時間軸","note":"台灣與國外的新媒體藝術團隊；把表演的參數排在時間軸上，就是一個迷你劇場。","part":"回答問題"},{"t":"37:54","sec":2274,"title":"今天要做什麼：Moodboard、迴圈與函數、手繪的有機感","note":"白板講迴圈與函數；「我希望大家做出來的那個程式藝術作品啊，它是有有機感的」。","part":"主要課程：迴圈、函數與環狀的花"},{"t":"45:54","sec":2754,"title":"示範：if／else 與餘數決定顏色","note":"frameCount % 2 奇偶換色，% 10 分三段；「一旦你就是要讓它出現這種圖騰型的東西，你都可以使用這個方式」。","part":"主要課程：迴圈、函數與環狀的花"},{"t":"51:05","sec":3065,"title":"環狀的花：極座標、translate、rotate、for","note":"原點移到中間，ellipse 往右偏移半個寬度，rotate 30 度會累加，for 重複 12 次畫成一朵花。","part":"主要課程：迴圈、函數與環狀的花"},{"t":"1:04:01","sec":3841,"title":"花的變化：色票輪替、AI 補 polygon、殘影","note":"colors[i % 5] 每片換色；請 AI 補 polygon 做六角花瓣；半透明背景留下殘影。","part":"主要課程：迴圈、函數與環狀的花"},{"t":"1:20:17","sec":4817,"title":"作品觀摩：Archetype 與遞迴","note":"空間切割與遞迴的概念，「今天我們不會寫到」。","part":"作品觀摩與影像筆刷"},{"t":"1:27:24","sec":5244,"title":"影像筆刷：Act of Emotion、上傳圖片、loadImage","note":"截一塊畫當筆刷、上傳到 Files、async setup 加 await loadImage；「就講個筆刷講得太久了」。","part":"作品觀摩與影像筆刷"},{"t":"1:37:55","sec":5875,"title":"作品觀摩：Trossets 格線拼圖","note":"每格四邊接點都有線的圖塊，隨機拼起來線條也接得上。","part":"作品觀摩與影像筆刷"},{"t":"1:40:42","sec":6042,"title":"筆刷進階：跟著轉、imageMode、切換筆刷、按下才畫、速度決定大小","note":"translate 到滑鼠再 rotate、imageMode(CENTER)、keyPressed 切換、mouseIsPressed、dist 算速度。","part":"作品觀摩與影像筆刷"},{"t":"2:00:42","sec":7242,"title":"作品觀摩：Fidenza 與向量場","note":"向量場扭曲線條，再沿線切段上色票。","part":"作品觀摩與影像筆刷"},{"t":"2:04:29","sec":7469,"title":"回顧、blendMode 與作業題目","note":"Photoshop 的圖層疊合模式：DARKEST、SCREEN；作業「作品一：動態幾何」。","part":"形狀：beginShape／vertex"},{"t":"2:11:30","sec":7890,"title":"beginShape／vertex：取座標小工具與花朵印章網格","note":"點一下印出 vertex，包成 drawFlower()，兩層 for 印成網格、random 二選一、noLoop。","part":"形狀：beginShape／vertex"},{"t":"2:26:52","sec":8812,"title":"回家作業、下週預告、問答與問卷","note":"找喜歡的場景做成每次打開都不一樣的拼貼畫，存 5 個變體與影片；下週向量與粒子；遞迴之後再講。","part":"作業與收尾"}],"summary":"2 小時 32 分。前 38 分鐘看作業、回答 AI 的定位與「去哪裡找新媒體藝術的工作」；接著從色票與 if／else 取色、環狀的花（請 AI 補 polygon），一路做到影像筆刷系統與 blendMode，最後用取座標小工具把手點的花形做成印章網格。作業是「作品一：動態幾何」，10/5（一）21:00 前交 Hahow。","duration":"2:32:19","plan":{"topic":"環境設定、畫布、動態圖形、隨機性","output":"動態幾何作品","stage":"友善入門","difficulty":2},"sections":23,"qaCount":22,"homework":{"title":"作品一 動態幾何","steps":["結合今天做幾何形狀的方法：圖騰般的配色、環狀構圖、筆刷系統，自由組合","找一個喜歡的場景（生活風景、看過的畫、喜歡的角色），先用 moodboard 收集","用 p5.js 做出來，像一幅馬賽克拼貼畫，每次打開都不一樣","存 5 個左右的變體圖","輸出成影片讓它動起來（留下軌跡或隨時間變化），或用筆刷畫完存圖","交到 Hahow 作業區「作品一」，10/5（一）21:00 前；Discord #作業分享 貼一份"],"source":"[2:10:37]、[2:26:52]"},"quotes":[{"t":"03:54","text":"「如果說你覺得有點辛苦或是跟不上，這個是正常的，因為寫程式剛開始本來就會蠻卡的」"},{"t":"10:00","text":"「大家要準備面對的是一個幾乎大家都不會手寫程式碼的時代，但是如果你會手寫程式碼…你就可以更快的去指揮你的工具去做出創作」"},{"t":"22:47","text":"「你至少要讓自己參與在這個過程中」"}],"quotesTotal":9,"resources":[{"group":"範例程式（OpenProcessing）","items":[{"title":"260929 colors demo","url":"https://openprocessing.org/@cheyuwu/3022625","note":"色票清單、random 與 if／else 取色"},{"title":"260929 angle 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