is a graphics programming language adapted to programming shader effects (characterizing surfaces, volumes, and objects)
such language forms usually consist of special data types, like “vector”, “matrix”, “color” and “normal”
the shader language world is fragmented, but every language here is similar enough to C that one can easily switch between them

What are Shaders

Shader Languages - Low Level

Shader Language	Graphics API Platform
Standard Portable Intermediate Representation (SPIR-V)	Vulkan

Shader Language	Graphics API / Platform
Shader Language (GLSL)	OpenGL
OpenGL ES Shading Language (ESSL)	OpenGL ES
Shader Language (WGSL)	WebGPU
Shader Language (MSL)	Metal
Shader Language (HLSL)	Direct3D