Pixel Shader 2.0

hmm...

1 mega pixel how many pixel

Pixel shader is a standardized set of programming codes used to render more lifelike lighting in 3d applications and games. It is hard-coded into your computers video card and its drivers. Therefore it is actually both. There are programs out there which can emulate pixel shader purely through software, this solution often leads to poor performance and system instability. Pixel shader works best when it is natively supported by hardware.

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it is a dot of light