After all the UV coordinates are mapped onto a model, you can paint the desired textures in an external paint program like Photoshop and then load the texture back into the Edit UVWs window, where they can be aligned to the correct UVs. Using the Tools Render UVs menu command, you can create a template that can be saved and loaded into Photoshop showing you exactly where the UV boundaries are.
The Tools Render UVW Template menu command opens the Render UVs dialog box, shown in Figure 24.16. This dialog box lets you set the template's dimensions, set the template's Fill and Edges colors, and show overlaps and seams. The Fill mode can be set to None, Solid, Normals and Shaded, providing more information about the object.
Figure 24.16: The Render UVs dialog box lets you render and save a template for painting textures
Clicking the Render UV Template button renders the template into the Render Frame Buffer window where it can be saved to the needed image format.