Proxy objects in Rhino are often used to represent complex geometry with a simplified version for better performance. However, there are times when you may need to convert these proxy objects to regular mesh for more accurate visualization or further manipulation. Here's how you can do it in Rhino.

1. Select the Proxy Object: Start by selecting the proxy object that you want to convert to a regular mesh. You can do this by clicking on the proxy object with the selection tool.

2. Convert to Mesh: Once the proxy object is selected, go to the 'Mesh' tab in the Rhino toolbar. From the dropdown menu, select 'Convert to Mesh' or use the 'Mesh' command followed by the 'From Proxy' option. This will convert the selected proxy object into a regular mesh.

3. Adjust Mesh Parameters: After the conversion, you may need to adjust the mesh parameters to achieve the desired level of detail. You can do this by using the 'Mesh Settings' panel to control the mesh density, smoothness, and other relevant parameters.

4. Refine the Mesh: Depending on the complexity of the original geometry, the converted mesh may require further refinement. You can use tools such as 'Mesh Repair' or 'Mesh Refine' to optimize the mesh and ensure that it accurately represents the original object.

5. Check the Results: Once the mesh conversion and refinement are complete, it's important to check the results to ensure that the regular mesh accurately represents the original geometry. You can use visualization tools or rendering techniques to inspect the mesh from different angles and perspectives.

By converting proxy objects to regular mesh in Rhino, you can improve the performance and visualization of your 3D models. This process allows you to work with more detailed representations of complex geometry while maintaining a manageable level of computational overhead.

In conclusion, knowing how to change proxy objects to regular mesh in Rhino is an essential skill for 3D modelers and designers. It enables you to work with more accurate representations of your designs and ensures a smoother workflow. Mastering this process will enhance your ability to create compelling and intricate 3D models in Rhino.