mix()

Performs linear interpolation between two values.

The mix() function linearly interpolates between two values based on a third parameter. It's a GLSL built-in function available in p5.strands shaders.

The function computes: x * (1 - a) + y * a

When a is 0.0, the function returns x. When a is 1.0, it returns y. Values between 0.0 and 1.0 produce a linear blend between the two values.

This function works with scalars, vectors (vec2, vec3, vec4), and can also accept a boolean for the third parameter to select between the two values.

Note: This function is only available inside shader code created with buildMaterialShader(), buildColorShader(), or similar functions. For regular p5.js code, use lerp() instead.