Creation

Midjourney AI創作實驗 記錄—使用兒子天馬行空想像力

/ 關於我 / 2023-02-15

將兒子的天馬行空想像力文字化

兒子前幾周在看完希臘神話梅杜沙的故事後，就非常著迷故事裡的巨大海怪，以及任何生物眼精對上梅杜沙的雙眼會被石化這件事。

他也畫了一張大海怪被梅杜沙石化的圖畫。我引導他把他劃下的故事說出來，我再把寫整理成一段具體的描述如下：

兒子畫的圖

克拉肯是一隻巨大恐龍與海蛇結合的巨大海怪。它有有四隻粗大強壯的腳，每一腳有四個又長又尖銳的爪，用來攻擊。還有一條又長又有力量的尾巴，可以攻擊敵人。它整身是藍灰色的底色，上面有黃色與白色隨機相間的不規則條紋，遍佈全身。它的頭又大又圓，眼睛也是。它的嘴巴張開大口，露出像刀子一樣鋒利的牙齒。

畫面的右側一角有一顆被砍掉的頭顱，頭下方的頸部還流著紅色的液體。原來這顆頭顱是希臘神話中蛇髮女妖梅杜莎的頭顱。梅杜莎長的非常的美麗，但是她的頭髮會化成有毒的毒蛇，所以她的頭上有好多條毒蛇。傳說中，任何生物只凝視她眼睛的人都會變成石頭。

就在克拉肯要展開攻時，它的眼睛對上了梅杜莎頭顱上的眼睛，瞬間克拉肯被固化成石頭了！

然後，翻譯成英文：

Kraken is a huge sea monster combined with a huge dinosaur and a sea snake. It has four thick and strong feet, and each foot has four long and sharp claws for attacking. There is also a long and powerful tail that can attack enemies. It has a blue-gray base color with irregular yellow and white stripes all over its body. Its head is big and round, as are its eyes. Its mouth was wide open, revealing sharp, knife-like teeth.

There is a head in the right corner of the picture, and red liquid is still flowing from the neck below the head. It turns out that this head is the head of the Gorgon Medusa in Greek mythology. Medusa is very beautiful, but her hair will turn into poisonous snakes, so there are many poisonous snakes on her head. Legend has it that any creature who looks only into her eyes will be turned to stone.

Just when Kraken was about to attack, its eyes met those on Medusa’s head, and Kraken was instantly solidified into stone!

Midjourney AI繪圖產出

放進Midjourney，跑出來的圖長這個樣子：

兒子想像的AI繪圖

Midjourney目前的侷限性

接著要把梅杜沙也呈現在畫裡，一直試不出來在畫面上呈現兩個物體的描述，縱使已下了兩個物體應該分開的描述，出來的圖還是合在一起，與想要的差很多。例如，：

The image should have a sea monster and a Medusa’s head. The sea monster and Medusa’s head should be separate. A sea monster in the center and Medusa’s head in the top right. They are fighting. the sea monster stared at Medusa’s head. big waves in the background.

無法得到兩個分開物體

或是先把海怪的圖作好，再進行參數引用。持續試了幾次，仍沒有得到海怪與梅杜沙分開的結果。過程中，有一張圖，風格還變特別的，特地存下來：

意外得到喜歡的圖

使用AI 繪圖詠唱公式

參考別人的寫法之後，不用故事描述的方式，改採AI 繪圖詠唱公式，來描述海怪與場景，產出全新海怪圖：

海怪，一種結合恐龍與海蛇的生物；有四隻粗力強壯的腳，每隻腳有四根又長又尖銳的爪，身上藍灰色底與黃白色條紋，翱翔在海浪之上，場景設置在黎明時分，太陽從遠處升起，場景氣氛是充滿信心與希望的，燈光效果應該是溫暖而明亮，陽光在大海與海怪身上投投出金色的色調。

Sea monster, a creature that combines dinosaurs and sea snakes; its body is blue-gray with yellow and white stripes, soaring above the waves, the scene is set at dawn, the sun rises from a distance, the atmosphere of the scene is full of confidence and hope, lights The effect should be warm and bright, with the sun casting golden hues on the sea and sea monsters.　－－ar 16:9

新海怪圖連結

接著，再來試看看參考這張圖，再把海怪看到梅杜沙眼精被石化的描述，放進Mijourney：

海怪的眼精看到了梅杜沙頭像的眼睛，海怪就變成石頭了。

The eyes of the sea monster saw the eyes of Medusa’s head, and the sea monster was petrified and solidified.

大眼海怪連結

Midjourney心得與學習：

  • Midjourney的AI繪圖，真的很強大，會得產很多意想不到的創意與靈感，並具快產圖的速度。
  • Midjourney的AI繪圖，要產生與真正想要的結果，可能會很不一樣，也可能試了大半天仍有局限。
  • 學會利用AI 繪圖詠唱公式來下達指令：
    • 公式（或說是文法）如下：「主體 + 風格 + 渲染 + 指令」
    • 一段完整的描述詞：
    Sea monster, a creature that combines dinosaurs and sea snakes; its body is blue-gray with yellow and white stripes, soaring above the waves, the scene is set at dawn, the sun rises from a distance, the atmosphere of the scene is full of confidence and hope, lights The effect should be warm and bright, with the sun casting golden hues on the sea and sea monsters.
    • 描述主體：簡短的一個主詞(Sea monster)，這個主詞的身上的特色或顯著的地方。
    • 描格風格：日出時分、光線出現的方向、氣氛或場景
    • 加上渲染：可以加上一些煙霧（Smoke）、爆炸（exploding）之類
    • 加上指令：－－ar 16:9, 產出16:9的圖
  • Midjourney禁止下達爆力或血腥指令，例如：
    • The phrase severed head is banned. Circumventing this filter to violate our rules may result in your access being revoked.
    • The word bloody is banned. Circumventing this filter to violate our rules may result in your access being revoked.