shader

Shaders are small processors or shader programs implemented in the graphics processor( GPU) of the graphics card that calculate shading, surface structures and lighting effects in great detail.

One group of shaders computes lighting effects in computer games, which are the vertex shaders, and another computes the textures, surfaces, and gradients of textures, which are the pixel shaders. Until DirectX 10, the calculations for both shading effects were performed in separate microprocessors. Since DirectX 10, there is no longer a distinction between vertex shaders and pixel shaders, but only a unified shader architecture.