@threlte/xr/dist/lib/getXRSessionOptions.js

Tools to more easily create VR and AR experiences with Threlte

export const getXRSessionOptions = (referenceSpaceType, sessionInit, fallbackSessionInit) => {
    const init = sessionInit ?? fallbackSessionInit;
    if (referenceSpaceType === undefined && init === undefined) {
        return undefined;
    }
    if (referenceSpaceType && init === undefined) {
        return { optionalFeatures: [referenceSpaceType] };
    }
    if (referenceSpaceType && init) {
        return {
            ...init,
            optionalFeatures: [...new Set([...(init.optionalFeatures ?? []), referenceSpaceType])]
        };
    }
    return init;
};