如果你通过材质属性面板新按钮添加新的材质，将会在节点编辑窗口中看到节点树。

If you will add new material using new button in Materials properties panel you will see node tree in the node editor window.

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窗口右底部是图像编辑器，你可以在这里预览所有材质，展开模型。

Right bottom window is the Image Editor where you can preview all the textures loaded into . blend file and uv unwrap your models.

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