In this recipe we will create a material similar to a beetle's iridescent chitin, as shown here:
Start Blender and open the 1301OS_07_start.blend
file, where there is an already set scene with an unwrapped Suzanne primitive object.
Let's start with the creation of the chitin material by assigning a second default material to the eyes of the Suzanne mesh (which, although not connected to the face vertexes, are part of the same object):
Click on New in the Node Editor window's header or in the Material window on the right and rename the new material as
chitin_beetle
.Press Tab to go in the edit mode and select the eyes' vertexes (put the mouse pointer on the part and press the L key to select all the connected vertexes). Click on the + icon in the top-left corner of the Material window to add a new material. Click on New, rename the material as
eyes
, and click on the Assign button. Press Tab to come out...