public void Store(PersistentSettings settings)
{
settings.SetBool("WriteSerialized", writeSerialized);
settings.SetString("RendererDirectory", rendererDirectory);
settings.SetInteger("XResolution", xres);
settings.SetInteger("YResolution", yres);
settings.SetInteger("PathLength", pathLength);
settings.SetInteger("SamplesPerPixel", samplesPerPixel);
settings.SetInteger("Integrator", (int)integrator);
}