+A **shader** is a small program executed on a [GPU](/wiki/GPU) during the rendering process. It dictates how light interacts with surfaces, determining the color, texture, and final appearance of pixels, crucial for modern [Computer Graphics](/wiki/Computer_Graphics).
+## See also
+- [Rendering](/wiki/Rendering)
+- [Texture](/wiki/Texture)
+- [GLSL](/wiki/GLSL)
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