At this point, everything is ready for the unwrapping.
Put the mouse pointer on the bottom or on the top horizontal borders of the 3D window. As the mouse pointer changes to a double-arrow icon, right-click and in the Area Options pop-up menu select the Split Area item; then, left-click to obtain two windows and switch the left one to UV/Image Editor.
To unwrap the mesh in Blender, several options are available; however, the one we are going to use now is the basic unwrap, the result of which we will edit and refine later:
Ensure that the UV/Image Editor window is not set to Render Result, otherwise it won't display the UV islands.
Select the Gidiosaurus_lowres object and enter Edit Mode. Select all the vertices (A key) and press the U key; in the UV Mapping pop-up menu, select the first item, Unwrap:
After a while, the UV layer of the unwrapped mesh appears in the UV/Image Editor window; as you can see, several...