feat/client-model-3d-decoder
Closes the loop on the just-merged comfy-rnp-server PR #37 which added the four Tripo / Rodin 3D providers and the ``Capability.MODEL_3D_GLB_INLINE`` token. Without this client-side half the providers were unreachable from any RNP client — descriptors would fail negotiation because the proxy_node didn't advertise the token. Client changes (all inside ``ComfyUI/custom_nodes/comfy_remote_nodes``): * ``protocol.py`` — mirror the new ``Capability.MODEL_3D_GLB_INLINE`` constant and add ``"model_3d"`` to ``HEAVY_TYPES`` so ``is_envelope`` recognises inbound 3D-model envelopes. The vendored ``protocol`` module is the single source of truth for the proxy_node and serialization layers; both already consume ``is_envelope`` / ``decode_envelope_data`` from here. * ``serialization.py`` — add ``decode_model3d_envelope`` that hands raw GLB bytes to ``comfy_api.latest._util.File3D`` via ``BytesIO``, mirroring the existing ``decode_video_envelope`` shape. Only ``glb_inline`` is accepted today; any other encoding surfaces ``RnpProtocolError(code=INTERNAL)`` as defence-in-depth so a future encoding never silently downgrades to garbage bytes. Registered in the ``_DECODERS`` dispatch table and re-exported via ``__all__``. * ``proxy_node.py`` — add ``"MODEL_3D" -> IO.File3DGLB.Output`` to ``_OUTPUT_CLASSES`` so descriptors with ``output=["MODEL_3D"]`` parse to a real socket. The descriptor io_type string is the logical name ``"MODEL_3D"`` (consistent across vendors) — the resulting V3 Output carries the upstream ``"FILE_3D_GLB"`` comfytype tag so frontend-side socket matching works against any GLB-aware downstream node (preview3d / SaveGLB / Load3D). * ``client.py`` — advertise ``Capability.MODEL_3D_GLB_INLINE`` in ``CLIENT_CAPABILITIES`` so servers gate provider descriptors on the presence of the token. Legacy clients that don't advertise it still see NEGOTIATION_FAILED at descriptor-load time (safe degradation), not a parse error at execute. Smoke test (``notes/run_model3d_decoder.py``) covers: 1. ``HEAVY_TYPES`` includes ``"model_3d"``. 2. ``is_envelope`` recognises a MODEL_3D envelope. 3. ``decode_model3d_envelope`` round-trips a minimal valid GLB (binary glTF 2.0, magic ``b"glTF"``). 4. ``decode_envelope`` dispatches ``type=model_3d`` to the new decoder. 5. Unsupported encoding raises ``RnpProtocolError``. 6. End-to-end against the server's ``make_model3d_envelope`` helper — server packs, client decodes, bytes match. 7. ``proxy_node._OUTPUT_CLASSES`` contract: ``"MODEL_3D" -> IO.File3DGLB.Output``. 8. ``client.CLIENT_CAPABILITIES`` advertises ``Capability.MODEL_3D_GLB_INLINE``. No server-side changes. The 4 just-shipped Tripo / Rodin providers (``TripoTextToModelApi_RNP``, ``TripoImageToModelApi_RNP``, ``TripoMultiviewToModelApi_RNP``, ``Rodin3DRegularApi_RNP``) are now reachable end-to-end from ComfyUI. Co-authored-by: Amp <amp@ampcode.com> Amp-Thread-ID: https://ampcode.com/threads/T-019e3314-4336-71d2-a333-6d1e33a9986e
comfy-remote-nodes
ComfyUI custom-node package that fetches node descriptors from an RNP/1 (Remote Node Protocol v1) server and exposes them as native V3 nodes inside ComfyUI.
The reference server lives at
Comfy-Org/comfy-rnp-server
(private). This client is intentionally provider-agnostic: any server
that speaks RNP/1 can publish nodes through it.
Install
Clone into your ComfyUI custom_nodes/ directory:
cd ComfyUI/custom_nodes
git clone https://github.com/Comfy-Org/comfy-remote-nodes.git
(The directory name on disk doesn't matter — ComfyUI loads the package
via spec_from_file_location, so comfy-remote-nodes/ is fine.)
Configure
Point the extension at one RNP server URL via env var before starting ComfyUI:
export RNP_SERVER_URL=http://127.0.0.1:9190
python main.py
If RNP_SERVER_URL is unset, the extension registers zero nodes and
logs a single line — ComfyUI starts normally with no remote nodes.
What works today
- Manifest + capability handshake
object_infofetch and dynamic V3 class generation (with ETag conditional GETs)- Sync
executeand asyncexecute_async+ poll/cancel - Image / mask / audio / video envelope encode + decode
- Presigned upload helper for >8 MiB inputs
- Tier 3 (recent):
TASK_LOSTdetection with idempotent resubmission — survives an RNP server restart mid-task without losing the workflowSERVER_BUSY/MAINTENANCE503 envelopes treated as rate limits withRetry-Afterhonoring and friendly per-second progress text ("Server busy, retrying in 30s...")- Out-of-band
url_fetchfor URI-only output envelopes, driven by the descriptor'sremote.url_fetchpolicy - Per-poll auth refresh so long-running tasks can rotate tokens
What does not (yet)
validate_inputs/fingerprint_inputs/check_lazy_status— the server returns501 NOT_IMPLEMENTED; the client falls through to ComfyUI's defaults- Multi-server config file (
comfy_remote_nodes.yamlor similar) — today's setup is one server per ComfyUI process via env var - Streaming execute (server-sent events for incremental previews)
Languages
Python
100%