@woosh/meep-engine/src/engine/graphics/geometry/MikkT/MakeIndex.js

Pure JavaScript game engine. Fully featured and production ready.

import { assert } from "../../../../core/assert.js";

/**
 *
 * @param {number} iFace
 * @param {number} iVert
 * @returns {number}
 */
export function MakeIndex(iFace, iVert) {
    assert.greaterThanOrEqual(iVert, 0);
    assert.lessThan(iVert, 4);
    assert.greaterThanOrEqual(iFace, 0);

    assert.isNonNegativeInteger(iFace,'iFace');
    assert.isNonNegativeInteger(iVert,'iVert');

    return (iFace << 2) | (iVert & 0x3);
}