当你为反射贴图通道添加了光线追踪贴图后，你会发现材质编辑器显示出新的设置。

After you have insert RAYTRACE in the reflection map you will see that the material editor is showing new Settings.

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显示当前赋予它的材质。点击这个按钮打开材质编辑器，这里，你可以改变纹理或选择其他材质。

Shows which material is currently assigned to it. Click on the button to get to the material editor where you can change texture or select another material.

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当材质和纹理包含定制属性在材质编辑器中被选择时，在这些属性中被定义的展卷栏将出现在材质编辑对话框的末端。

Rollouts defined in these attributes will appear at the end of the Mtl Editor dialog when the material or map containing the custom attributes is selected in the Mtl Editor.

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