@phaserjs/phaser/math/mat4/Mat4Perspective.js

Phaser 4

import { Matrix4 } from "./Matrix4";
export function Mat4Perspective(fovY, aspect, near, far, out = new Matrix4()) {
  const f = 1 / Math.tan(fovY / 2);
  let m22 = -1;
  let m32 = -2 * near;
  if (far !== null && far !== Infinity) {
    const nf = 1 / (near - far);
    m22 = (far + near) * nf;
    m32 = 2 * far * near * nf;
  }
  return out.set(f / aspect, 0, 0, 0, 0, f, 0, 0, 0, 0, m22, -1, 0, 0, m32, 0);
}