@thi.ng/shader-ast/ast/swizzle.js

DSL to define shader code in TypeScript and cross-compile to GLSL, JS and other targets

import {
  B,
  F,
  I,
  U
} from "../api/types.js";
function $(val, id) {
  const type = val.type[0];
  const rtype = (a, b) => id.length === 1 ? a : b + id.length;
  return {
    tag: "swizzle",
    type: type === "i" ? rtype(I, "ivec") : type === "u" ? rtype(U, "uvec") : type === "b" ? rtype(B, "bvec") : rtype(F, "vec"),
    val,
    id
  };
}
const $x = (val) => $(val, "x");
const $y = (val) => $(val, "y");
const $z = (val) => $(val, "z");
const $w = (val) => $(val, "w");
function $xy(val) {
  return $(val, "xy");
}
function $xyz(val) {
  return $(val, "xyz");
}
export {
  $,
  $w,
  $x,
  $xy,
  $xyz,
  $y,
  $z
};