message: texelFetch w/ LOD requires at least MIPMAP_NEAREST
  if NEAREST or LINEAR min filter is used, texelFetch is actually
  undefined when the LOD is not 0.
diff: @@ -286,7 +286,7 @@ FrameGraphId<FrameGraphTexture> PostProcessManager::mipmapPass(FrameGraph& fg,
  auto out = resources.get(data.rt);
  FMaterialInstance* const mi = mMipmapDepth.getMaterialInstance();
  - mi->setParameter("depth", in, { /* uses texelFetch */ });
  + mi->setParameter("depth", in, { .filterMin = SamplerMinFilter::NEAREST_MIPMAP_NEAREST });
  mi->setParameter("level", uint32_t(level));
  mi->commit(driver);
  mi->use(driver);
  