Method constructor

examples/extern/gmath.bundle.js:1554–1561

(left, right, bottom, top, near, far)

    near;
    far;
    constructor(left, right, bottom, top, near, far){
        this.left = left;
        this.right = right;
        this.bottom = bottom;
        this.top = top;
        this.near = near;
        this.far = far;
    }
    toMatrix4() {
        const c0r0 = 2 / (this.right - this.left);
        const c1r1 = 2 / (this.top - this.bottom);