ViewPort

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观察流程：

• Viewing Process overview观察流程

• Model-View Transformation(模视变换)

  • Model Transformation模型变换* View Transformation观察变换*

• Projection Transformation投影变换

• Viewport Transformation屏幕映射

• Object coordinates/Model coordinates(OC/MC)对象坐标系/建模坐标系

• World coordinates(WC)世界坐标系

• Camera (Eye) coordinates View coordinates(VC)相机/眼坐标系（观察坐标系)

• Clip coordinates /Normalized coordinates(CCINDC)裁剪坐标系/规范化坐标系

• Screen coordinates(DC)/Screen coordinates设备坐标系/屏幕坐标系

M-V transformation

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ModelViewMatrix = ViewMatrix*ModelMatrix

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Summary

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模型变换：建模

观察变换：漫游