After the shape of a 3D object has been modeled, various qualities must be assigned to transform the model from a lifeless set of point coordinates to a richly textured realistic object. Qualities such as color and texture are called attributes. In this module, you will learn about many kinds of object attributes. Color Colors for an object are usually set using the RGB color system. Some software allows you to set several different colors independently.
Ambient color is the color an object has if no light falls on it.
The color an object has when illuminated evenly with white light is called the object's Diffuse color. The specular highlight color is the color of spots where the object reflects light very strongly. Hardness Also called shininess, hardness usually ranges from 0 to 255 and controls the size of specular highlights. Look around you at different surfaces and notice that the harder surfaces, such as metals, have small sharp highlights, while wood or paper has larger diffused highlights. More advanced software allows custom defined falloff of specular highlights to simulate a wide range of surface types.