簡單地說，電腦圖學的主要研究內容就是研究如何在電腦中表示圖形、以及利用電腦進行圖形的計算、處理和顯示的相關原理與演算法。然而圖學領域研究的分支有許多種。
本篇我們將介紹電腦圖學中的一些基本應該具備的知識。
Basic Knowledge
Translate 平移
平移在圖學中是一個很基本的變換，也就是移動一個物件。P是當前的位置，而d是想移動的距離，
最終的位置就是P+d。
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寫成矩陣型式就如下圖表示:
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之後談到MVP矩陣時會在更詳細的去講矩陣的意義。
Rotation 旋轉
旋轉也是基本變換之一，簡單的想就是在空間中選轉一個物件。但在旋轉之前，要先決定物體怎麼旋轉，也就是選轉軸，旋轉角度，旋轉中心。然而在旋轉變換中有不同的算法，如: 四元數，尤拉角等。
之後會再詳談。在這裡只需要了解到最基本的旋轉就是我們高中熟悉的旋轉矩陣。
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在更細一點看，其實就是各個分量的旋轉。
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以矩陣形式如下圖表示
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- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
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Scale 縮放
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- The image file may be corrupted
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- The image path is incorrect
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Shearing
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- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
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Reflect 鏡射
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