可能是由于以下几个原因导致无法在3D视图中着色：
1. 选中的对象没有正确的材质：确保你选择的对象已经分配了一个正确的材质。你可以在属性面板中选择一个材质，并将其分配给对象。
2. 材质渲染模式错误：检查你的材质是否被设置为正确的渲染模式。有时候，只有在渲染模式为"Shaded"或者"Textured"时才能正确地显示颜色。你可以在材质属性面板中调整这个设置。
3. 视图模式问题：确保你正在使用适合绘制的视图模式。有时候，使用错误的视图模式（如线框模式）会导致无法正确显示颜色。
如果你能够在纹理小窗口中画上颜色，说明你的材质和贴图设置没有问题。那么可能是视图或渲染模式的设置出了问题。你可以尝试重启软件或者重新打开文件来解决这个问题。
English translation:
There could be several reasons why you can't paint in 3D using Bodypaint:
1. Incorrect material assignment: Make sure the object you have selected has a correct material assigned to it. You can choose a material from the material panel and assign it to the object.
2. Incorrect material rendering mode: Check if your material is set to the correct rendering mode. Sometimes, colors will only be displayed correctly in "Shaded" or "Textured" rendering modes. You can adjust this setting in the material properties panel.
3. View mode issue: Make sure you are using an appropriate view mode for painting. Sometimes, using the wrong view mode (such as wireframe) can prevent colors from being displayed correctly.
If you are able to paint colors in the texture window, it means your material and texture settings are correct. The issue may lie with your view or rendering mode settings. You can try restarting the software or reopening the file to resolve this issue.
——微元素 × GPT，助力游戏开发，CG创作的无限可能！ |
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