an introduction to shader art coding

introduction to shader art coding

shader art coding is a fascinating intersection of art and computer graphics where you can create stunning visuals using programming. shaders are small programs that run on the gpu (graphics processing unit) and are mainly used in 3d graphics rendering to control the appearance of pixels and vertices. they can be used to create a variety of effects, including lighting, texture mapping, and even complex animations.

types of shaders

1. **vertex shaders**: these shaders process each vertex's data, transforming its position and properties (like color and texture coordinates) before rasterization.

2. **fragment shaders**: also known as pixel shaders, these operate on fragments generated by the rasterization of primitives (like triangles). they determine the color and other attributes of each pixel.

3. **geometry shaders**: these shaders can generate new vertices from existing ones, allowing for dynamic geometry creation.

4. **compute shaders**: these are used for general-purpose computing tasks and are not directly tied to graphics rendering.

basic concepts

1. **glsl (opengl shading language)**: this is a c-like language used for writing shaders. it is widely used in conjunction with opengl.

2. **uniforms**: these are read-only variables that can be passed from your application (cpu) to your shaders. they remain constant for all processed vertices or fragments during a single draw call.

3. **attributes**: these are per-vertex data passed to the vertex shader, such as position, color, and texture coordinates.

4. **varyings**: these are variables that interpolate values between the vertex and fragment shaders.

setting up your environment

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