Type Alias TypeVertexShader

TypeVertexShader:
    | string
    | { src: string; vars?: string[] }
    | (string | number | boolean)[]
    | OBJ_VertexShader

A vertex shader can be defined with either:

{ src: string, vars: Array<string> }: a shader source code string and a list of attributes and uniforms
string: an identifier to a built-in shader
OBJ_VertexShader | Array<string | number | boolean>: composing options for a composable shader