Using the UV layout as a guide we created an image for the skin in Photoshop. This image is used to colour our 3D mesh. We created additional images to describe the bumpiness of the surface, how light is diffused by the surface, and how much light is reflected from the surface.

These additional images are grey, with lighter areas representing higher values and darker areas representing lower values.We desaturated our colour image and used it as a base for creating images for the bump, diffusion and specularity (shininess) channels.

 
The Colour image                                                    The Bump image

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