Shader is the name of the software that has been introduced by Microsoft to allow designers to do shading to their pictures n 2D and 3D. It is a program that is intended to teach highlighting and shading of different pictures and animations. These programs also help artists to give special effects to a digital photograph. Shader model 3.0 is so powerful and full of features that one can even design 3D programs with the help of this software. Download Shader model 3.0 free here if you are a designer or graphics artist or involved with animation to give special effects and to highlight objects easily and expertly.