mat4

• using function Array() { [native code] }

  • should compute same frustum as perspective0ms ‣

    const lr = 4;
    const tb = 2;
    const near = 10;
    const far = 20;
    const m1 = mat4.frustum(-lr, lr, -tb, tb, near, far);
    const fov = Math.atan(tb / near) * 2;
    const aspect = lr / tb;
    const m2 = mat4.perspective(fov, aspect, near, far);
    shouldBeCloseArray(m1, m2);