What Is Pixel Shader?

Question

what is it ?? From Where can i get? How can i check my PC have it or not? from where can i download it?
These Are The All Details Of My PC -:
Intel Processor With 2.14Ghz Speed ,
1GB RAM ,
VIDEO - Intel(R) 82845G/GL/GE/PE/GV Graphics Controller
DAC Type: Internal
64MB Video Card

Answer 1

Pixel Shaders create ambiance with materials and surfaces that mimic reality. An infinite number of material effects replace the artificial, computerized look with high-impact organic surfaces. Characters now have facial hair and blemishes, golf balls have dimples, a red chair gains a subtle leather look, and wood exhibits texture and grain. By altering the lighting and surface effects, artists are able to manipulate colors, textures, or shapes and to generate complex, realistic scenes.

Answer 2

Pixel Shader is a hardware function built into the graphics processor. In order to use it you also need the appropriate version of DirectX from Microsoft, like DirectX 9.0 for Pixel Shader 2.0. I f the on-board graphics does not have the appropriate PS version, you will have to buy an add-on card and, particularly if an old model, check that it has the PS hardware. It will probably come with the compatible DirectX on a CD.