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  "contentMarkdown": "# Map及其与Material、Texture的关系\n\n> 创建时间：2020/6/8 14:38\n\n  * Map及其与Material、Texture的关系\n    * Map\n    * 三者关系\n    * Ref\n\n## Map\n\n> 贴图的英语 Map 其实包含了另一层含义就是“映射”。\n>  贴图指的是映射关系，其功能就是把纹理通过 UV 坐标映射到3D 物体表面。贴图包含了除了纹理以外其他很多信息，比方说 UV 坐标、贴图输入输出控制等等。\n\nUV坐标：水平方向是U，竖直方向是V。因为图片（纹理）是一个二维的平面，所以只需要UV坐标便可以确定图片的位置。（当然也有三维贴图，要用到UVW坐标，暂时还接触不到。）\n\n## 三者关系\n\n材质 Material包含贴图 Map，贴图包含纹理 Texture。\n材质(Material)：物体的质地，物体看起来是什么做的\n贴图(Map)\n纹理(Texture)：普通的材质图片\n贴图 + 着色器(Shader) = 材质球\n\n## Ref\n\n<https://gameinstitute.qq.com/community/detail/115074>\n"
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