Restore general character and location helpers

README.md

@@ -76,6 +76,16 @@
   - Output: `reference`
   - Builds one structured `REFERENCE` object for a location/environment so H3 can use the same socket type for both character and scenic refs.
 
+- `Dumas Character Helper`
+  - Inputs: `image1`, `image2`, picture IDs, character identity fields, `general`, `wardrobe`
+  - Outputs: `image1`, `image2`, `reference_prompt`, `wardrobe`
+  - Restores the original general-purpose helper shape: pass two images through unchanged and emit prompt text/wardrobe text for manual wiring.
+
+- `Dumas Location Helper`
+  - Inputs: `image1`, `image2`, picture IDs, `location_id`, `name`, `alias`, `description`, `general`
+  - Outputs: `image1`, `image2`, `reference_prompt`
+  - Matching general-purpose helper for environments/locations: pass two images through unchanged and emit location reference prompt text.
+
 - `Dumas Anchor Style`
   - Inputs: `anchor_style`, `style_description`
   - Output: `anchor`
@@ -239,7 +249,7 @@ decr  -> use index - 1
 
 `Dumas H3 Plan Attach Scene Images` and `Dumas H3 Plan Extract Scene Images` are a companion pair for `ComfyUI-MiniMaxH3-Contex-Loop` and the local `ref2v` lane. The upstream H3 plan node cannot dynamically grow nine new image sockets for every JSON-defined scene, so Dumas stores scene image bindings beside the plan using a lightweight token and an in-memory registry. That keeps `plan.json` archiving intact while still letting you wire up nine IMAGE sockets per scene through chained helper nodes.
 
-`Dumas Character Reference` and `Dumas Location Reference` live in `Dumas/MiniMax`. Both output a structured `REFERENCE` object that carries the image plus its semantic payload. `Dumas H3 Long Videos` accepts those `REFERENCE` sockets directly on `ref_1`..`ref_9`, resolves `<Picture N>` against the wired slot positions, and can also pull character wardrobe context from the structured ref data when `character_memory` is left blank.
+`Dumas Character Helper` is the restored two-image/text helper for general H3 workflows, and `Dumas Location Helper` mirrors it for scene/environment references. The structured `Dumas Character Reference` and `Dumas Location Reference` nodes remain available separately for workflows that still want a single `REFERENCE` socket.
 
 `Dumas Strip Iteration Suffix` keeps the part before the first underscore and drops the rest. Names like `char123_pose_final.png` become `char123.png`, while names with no underscore such as `char123.png` are left untouched.
 

dumas_h3_latent_upscale.py

@@ -46,6 +46,7 @@ LOGGER = logging.getLogger(__name__)
 MP_UNIT = 1024 * 1024
 RES_MULTIPLE = 32
 CUDA_MODEL_CHUNK_LENGTH = 17
+CUDA_MODEL_MIN_TOTAL_VRAM_BYTES = 10 * 1024 * 1024 * 1024
 _MODEL_HOLD_DEPTH = 0
 
 
@@ -76,6 +77,42 @@ def _should_retry_temporal_before_spatial(param):
     return _uses_cuda_model_upscale(param) and int(param.get("chunk_length", 0) or 0) > CUDA_MODEL_CHUNK_LENGTH
 
 
+def _cuda_total_memory_bytes():
+    try:
+        if not torch.cuda.is_available():
+            return 0
+        if hasattr(torch.cuda, "mem_get_info"):
+            _free, total = torch.cuda.mem_get_info()
+            return int(total)
+        current_device = torch.cuda.current_device() if hasattr(torch.cuda, "current_device") else 0
+        props = torch.cuda.get_device_properties(current_device)
+        return int(getattr(props, "total_memory", 0) or 0)
+    except Exception:
+        return 0
+
+
+def _should_skip_cuda_model_upscale(param):
+    total = _cuda_total_memory_bytes()
+    return _uses_cuda_model_upscale(param) and 0 < total < CUDA_MODEL_MIN_TOTAL_VRAM_BYTES
+
+
+def _fallback_to_interp(video, param, reason):
+    method = param.get("method", "bilinear")
+    LOGGER.warning("H3 latent upscale model %s; using %s interpolation instead", reason, method)
+    try:
+        gc.collect()
+    except Exception:
+        pass
+    if torch.cuda.is_available():
+        try:
+            torch.cuda.empty_cache()
+        except Exception:
+            pass
+    interp_param = dict(param)
+    interp_param["mode"] = "interp"
+    return upscale_video_interp(video, interp_param)
+
+
 def _retry_with_smaller_temporal(video, param, upscaler, exc):
     if not _is_oom_error(exc):
         raise exc
@@ -902,15 +939,22 @@ def upscale_latent_video(video, param):
     if mode == "off":
         return video, video.shape[-2], video.shape[-1]
     if mode == "model":
+        if _should_skip_cuda_model_upscale(param):
+            return _fallback_to_interp(video, param, "requires more than this card's VRAM")
         model_name = param.get("model_name")
         device = param.get("device", "cuda")
         precision = param.get("precision", "fp16")
         dev = torch.device(device if (device == "cpu" or torch.cuda.is_available()) else "cpu")
-        with _hold_upscale_model_loaded():
+        try:
-            try:
+            with _hold_upscale_model_loaded():
-                return _upscale_video_temporal_chunks(video, param, upscale_video_model)
+                try:
-            finally:
+                    return _upscale_video_temporal_chunks(video, param, upscale_video_model)
-                _unload_upscale_model_now(model_name, dev, precision)
+                finally:
+                    _unload_upscale_model_now(model_name, dev, precision)
+        except RuntimeError as exc:
+            if not _is_oom_error(exc):
+                raise
+            return _fallback_to_interp(video, param, "exhausted GPU memory")
     return _upscale_video_temporal_chunks(video, param, upscale_video_interp)
 
 

dumas_image_nodes.py

@@ -1042,6 +1042,65 @@ def _build_character_wardrobe_text(wardrobe, character_id, name, alias):
     return text
 
 
+def _label_for_location(name, location_id):
+    return _normalize_free_text(name) or _normalize_free_text(location_id) or "the location"
+
+
+def _build_location_helper_text(
+    primary_picture_id,
+    secondary_picture_id,
+    location_id,
+    name,
+    alias,
+    description,
+    general,
+):
+    primary_picture = int(primary_picture_id)
+    secondary_picture = int(secondary_picture_id)
+    location_name = _normalize_free_text(name)
+    location_id = _normalize_free_text(location_id)
+    alias = _normalize_free_text(alias)
+    description = _ensure_sentence(description)
+    general = _ensure_sentence(general)
+    location_label = _label_for_location(location_name, location_id)
+
+    if location_name:
+        first_line = (
+            f"<Picture {primary_picture}> and <Picture {secondary_picture}> reference "
+            f"the same location called {location_name}."
+        )
+    elif location_id:
+        first_line = (
+            f"<Picture {primary_picture}> and <Picture {secondary_picture}> reference "
+            f'the same location with ID "{location_id}".'
+        )
+    else:
+        first_line = (
+            f"<Picture {primary_picture}> and <Picture {secondary_picture}> reference "
+            "the same location."
+        )
+
+    lines = [
+        first_line,
+        f"<Picture {primary_picture}> is the primary wide/environment reference for {location_label}.",
+        f"<Picture {secondary_picture}> is the secondary detail/angle reference for {location_label}.",
+    ]
+
+    facts = []
+    if alias:
+        facts.append(f"is also known as {alias}")
+    if description:
+        facts.append(description)
+
+    if facts:
+        lines.append(f"{location_label} {', '.join(facts)}")
+
+    if general:
+        lines.append(general)
+
+    return "\n".join(lines)
+
+
 class DumasImageCompareNode:
     DESCRIPTION = (
         "Dumas Image Compare shows the difference between two images directly on "
@@ -1604,6 +1663,274 @@ class DumasH3PlanExtractSceneImagesNode:
         return (passthrough_plan, *images, _connected_image_count(images))
 
 
+class DumasCharacterHelperNode:
+    DESCRIPTION = (
+        "Build a general character reference prompt and wardrobe sheet from two "
+        "IMAGE sockets plus simple identity fields, while passing both images "
+        "through unchanged."
+    )
+    RETURN_TYPES = ("IMAGE", "IMAGE", "STRING", "STRING")
+    RETURN_NAMES = ("image1", "image2", "reference_prompt", "wardrobe")
+    FUNCTION = "build_character_text"
+    CATEGORY = "Dumas/MiniMax"
+
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "image1": ("IMAGE", {"tooltip": "Primary image to pass through and describe."}),
+                "image2": ("IMAGE", {"tooltip": "Secondary image to pass through and describe."}),
+                "image1_picture_id": (
+                    ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
+                    {
+                        "default": "1",
+                        "tooltip": "Picture number to mention for image1 in the reference prompt.",
+                    },
+                ),
+                "image2_picture_id": (
+                    ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
+                    {
+                        "default": "2",
+                        "tooltip": "Picture number to mention for image2 in the reference prompt.",
+                    },
+                ),
+                "character_id": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional character ID string to include in the output text.",
+                    },
+                ),
+                "name": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Character name used in the main reference sentences.",
+                    },
+                ),
+                "alias": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional alternate name, codename, or nickname.",
+                    },
+                ),
+                "gender": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional gender field for non-visual character facts.",
+                    },
+                ),
+                "age": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional numeric age. Invalid values are omitted.",
+                    },
+                ),
+                "nationality": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional nationality, origin, or cultural background.",
+                    },
+                ),
+                "occupation": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional job, role, or function that is not visually obvious.",
+                    },
+                ),
+                "height_feet": (
+                    ["", "3", "4", "5", "6", "7", "8"],
+                    {
+                        "default": "",
+                        "tooltip": "Optional feet component for the character's height.",
+                    },
+                ),
+                "height_inches": (
+                    ["", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11"],
+                    {
+                        "default": "",
+                        "tooltip": "Optional inches component for the character's height.",
+                    },
+                ),
+                "accent": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional short accent description.",
+                    },
+                ),
+                "general": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": True,
+                        "tooltip": "Optional non-clothing details appended as the last sentence of the reference prompt.",
+                    },
+                ),
+                "wardrobe": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": True,
+                        "tooltip": "Optional wardrobe/channel text. Plain clothing lists are auto-wrapped as 'Name = ...' when a name, alias, or character ID is present.",
+                    },
+                ),
+            }
+        }
+
+    def build_character_text(
+        self,
+        image1,
+        image2,
+        image1_picture_id,
+        image2_picture_id,
+        character_id,
+        name,
+        alias,
+        gender,
+        age,
+        nationality,
+        occupation,
+        height_feet,
+        height_inches,
+        accent,
+        general,
+        wardrobe,
+    ):
+        text = _build_character_helper_text(
+            image1_picture_id,
+            image2_picture_id,
+            character_id,
+            name,
+            alias,
+            gender,
+            age,
+            nationality,
+            occupation,
+            height_feet,
+            height_inches,
+            accent,
+            general,
+        )
+        wardrobe_text = _build_character_wardrobe_text(
+            wardrobe,
+            character_id,
+            name,
+            alias,
+        )
+        return (image1, image2, text, wardrobe_text)
+
+
+class DumasLocationHelperNode:
+    DESCRIPTION = (
+        "Build a general location reference prompt from two IMAGE sockets plus "
+        "simple environment fields, while passing both images through unchanged."
+    )
+    RETURN_TYPES = ("IMAGE", "IMAGE", "STRING")
+    RETURN_NAMES = ("image1", "image2", "reference_prompt")
+    FUNCTION = "build_location_text"
+    CATEGORY = "Dumas/MiniMax"
+
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "image1": ("IMAGE", {"tooltip": "Primary location image to pass through and describe."}),
+                "image2": ("IMAGE", {"tooltip": "Secondary location image to pass through and describe."}),
+                "image1_picture_id": (
+                    ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
+                    {
+                        "default": "1",
+                        "tooltip": "Picture number to mention for image1 in the reference prompt.",
+                    },
+                ),
+                "image2_picture_id": (
+                    ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
+                    {
+                        "default": "2",
+                        "tooltip": "Picture number to mention for image2 in the reference prompt.",
+                    },
+                ),
+                "location_id": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional location ID string to include in the output text.",
+                    },
+                ),
+                "name": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Location name used in the main reference sentences.",
+                    },
+                ),
+                "alias": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": False,
+                        "tooltip": "Optional alternate name, label, or area name.",
+                    },
+                ),
+                "description": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": True,
+                        "tooltip": "Persistent environment, layout, and atmosphere description.",
+                    },
+                ),
+                "general": (
+                    "STRING",
+                    {
+                        "default": "",
+                        "multiline": True,
+                        "tooltip": "Optional extra notes appended as the last sentence of the reference prompt.",
+                    },
+                ),
+            }
+        }
+
+    def build_location_text(
+        self,
+        image1,
+        image2,
+        image1_picture_id,
+        image2_picture_id,
+        location_id,
+        name,
+        alias,
+        description,
+        general,
+    ):
+        text = _build_location_helper_text(
+            image1_picture_id,
+            image2_picture_id,
+            location_id,
+            name,
+            alias,
+            description,
+            general,
+        )
+        return (image1, image2, text)
+
+
 class DumasCharacterReferenceNode:
     DESCRIPTION = (
         "Build one structured REFERENCE object for a character so H3 can carry "
@@ -1888,8 +2215,9 @@ NODE_CLASS_MAPPINGS = {
     "DumasCharacterReference": DumasCharacterReferenceNode,
     "DumasLocationReference": DumasLocationReferenceNode,
     "DumasAnchorStyle": DumasAnchorStyleNode,
-    "DumasCharacterHelper": DumasCharacterReferenceNode,
+    "DumasCharacterHelper": DumasCharacterHelperNode,
-    "DumasH3CharacterHelper": DumasCharacterReferenceNode,
+    "DumasLocationHelper": DumasLocationHelperNode,
+    "DumasH3CharacterHelper": DumasCharacterHelperNode,
 }
 
 NODE_DISPLAY_NAME_MAPPINGS = {
@@ -1901,6 +2229,7 @@ NODE_DISPLAY_NAME_MAPPINGS = {
     "DumasCharacterReference": "Dumas Character Reference",
     "DumasLocationReference": "Dumas Location Reference",
     "DumasAnchorStyle": "Dumas Anchor Style",
-    "DumasCharacterHelper": "Dumas Character Reference",
+    "DumasCharacterHelper": "Dumas Character Helper",
-    "DumasH3CharacterHelper": "Dumas Character Reference",
+    "DumasLocationHelper": "Dumas Location Helper",
+    "DumasH3CharacterHelper": "Dumas Character Helper",
 }

tests/test_dumas_h3_longvideos.py

@@ -1414,6 +1414,103 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
             else:
                 latent.torch.device = original_device
 
+    def test_model_upscale_oom_falls_back_to_interp(self):
+        latent = importlib.import_module("dumas_h3_latent_upscale")
+        calls = []
+
+        original_temporal = latent._upscale_video_temporal_chunks
+        original_interp = latent.upscale_video_interp
+        original_unload_now = latent._unload_upscale_model_now
+        original_cuda = latent.torch.cuda
+        original_device = getattr(latent.torch, "device", None)
+        try:
+            latent.torch.cuda = types.SimpleNamespace(
+                is_available=lambda: True,
+                empty_cache=lambda: calls.append(("empty_cache",)),
+            )
+            latent.torch.device = lambda value: value
+
+            def temporal(_video, _param, _upscaler):
+                calls.append(("temporal", latent._MODEL_HOLD_DEPTH))
+                raise RuntimeError("H3 latent upscale exhausted its GPU spatial fallbacks")
+
+            def interp(video, param):
+                calls.append(("interp", video, param.get("mode"), param.get("method")))
+                return "interp_video", 8, 16
+
+            def unload_now(name, device, precision):
+                calls.append(("unload", name, device, precision, latent._MODEL_HOLD_DEPTH))
+
+            latent._upscale_video_temporal_chunks = temporal
+            latent.upscale_video_interp = interp
+            latent._unload_upscale_model_now = unload_now
+
+            result = latent.upscale_latent_video("source", {
+                "mode": "model",
+                "model_name": "upscale.safetensors",
+                "method": "bilinear",
+                "device": "cuda",
+                "precision": "fp16",
+            })
+
+            self.assertEqual(result, ("interp_video", 8, 16))
+            self.assertEqual(calls[0], ("temporal", 1))
+            self.assertEqual(calls[1], ("unload", "upscale.safetensors", "cuda", "fp16", 1))
+            self.assertIn(("empty_cache",), calls)
+            self.assertEqual(calls[-1], ("interp", "source", "interp", "bilinear"))
+            self.assertEqual(latent._MODEL_HOLD_DEPTH, 0)
+        finally:
+            latent._upscale_video_temporal_chunks = original_temporal
+            latent.upscale_video_interp = original_interp
+            latent._unload_upscale_model_now = original_unload_now
+            latent.torch.cuda = original_cuda
+            if original_device is None:
+                delattr(latent.torch, "device")
+            else:
+                latent.torch.device = original_device
+
+    def test_model_upscale_skips_learned_model_on_8gb_cuda(self):
+        latent = importlib.import_module("dumas_h3_latent_upscale")
+        calls = []
+
+        original_temporal = latent._upscale_video_temporal_chunks
+        original_interp = latent.upscale_video_interp
+        original_cuda = latent.torch.cuda
+        try:
+            latent.torch.cuda = types.SimpleNamespace(
+                is_available=lambda: True,
+                mem_get_info=lambda: (1 * 1024 * 1024 * 1024, 8 * 1024 * 1024 * 1024),
+                empty_cache=lambda: calls.append(("empty_cache",)),
+            )
+
+            def temporal(_video, _param, _upscaler):
+                calls.append(("temporal",))
+                raise AssertionError("learned model path should be skipped on 8GB CUDA")
+
+            def interp(video, param):
+                calls.append(("interp", video, param.get("mode"), param.get("method")))
+                return "interp_video", 8, 16
+
+            latent._upscale_video_temporal_chunks = temporal
+            latent.upscale_video_interp = interp
+
+            result = latent.upscale_latent_video("source", {
+                "mode": "model",
+                "model_name": "upscale.safetensors",
+                "method": "bilinear",
+                "device": "cuda",
+                "precision": "fp16",
+            })
+
+            self.assertEqual(result, ("interp_video", 8, 16))
+            self.assertNotIn(("temporal",), calls)
+            self.assertIn(("empty_cache",), calls)
+            self.assertEqual(calls[-1], ("interp", "source", "interp", "bilinear"))
+        finally:
+            latent._upscale_video_temporal_chunks = original_temporal
+            latent.upscale_video_interp = original_interp
+            latent.torch.cuda = original_cuda
+
     def test_upscale_video_model_raises_when_gpu_cannot_shrink(self):
         latent = importlib.import_module("dumas_h3_latent_upscale")
 

tests/test_dumas_image_nodes.py

@@ -356,6 +356,71 @@ class DumasImageNodeTests(unittest.TestCase):
         required = self.image_nodes.DumasLocationReferenceNode.INPUT_TYPES()["required"]
         self.assertNotIn("picture_id", required)
 
+    def test_character_helper_restores_image_and_text_outputs(self):
+        node = self.image_nodes.DumasCharacterHelperNode()
+        image1 = FakeTensorBatch()
+        image2 = FakeTensorBatch()
+
+        result = node.build_character_text(
+            image1=image1,
+            image2=image2,
+            image1_picture_id="1",
+            image2_picture_id="2",
+            character_id="char_dave",
+            name="Dave",
+            alias="The Locksmith",
+            gender="male",
+            age="41",
+            nationality="English",
+            occupation="a detective",
+            height_feet="6",
+            height_inches="2",
+            accent="English",
+            general="Moves carefully and notices every exit",
+            wardrobe="weathered red flight jacket, grey cargo shorts, black boots",
+        )
+
+        self.assertIs(result[0], image1)
+        self.assertIs(result[1], image2)
+        self.assertIn("<Picture 1> and <Picture 2> reference the same character", result[2])
+        self.assertIn("Dave is also known as The Locksmith", result[2])
+        self.assertIn("is 41 years old", result[2])
+        self.assertEqual(result[3], "Dave = weathered red flight jacket, grey cargo shorts, black boots")
+
+    def test_location_helper_matches_character_helper_shape_without_wardrobe(self):
+        node = self.image_nodes.DumasLocationHelperNode()
+        image1 = FakeTensorBatch()
+        image2 = FakeTensorBatch()
+
+        result = node.build_location_text(
+            image1=image1,
+            image2=image2,
+            image1_picture_id="3",
+            image2_picture_id="4",
+            location_id="coffee-shop-01",
+            name="Coffee Shop",
+            alias="Cafe Interior",
+            description="Warm tungsten lighting, narrow counter, rainy front window",
+            general="Evening ambience, cramped but cozy",
+        )
+
+        self.assertIs(result[0], image1)
+        self.assertIs(result[1], image2)
+        self.assertIn("<Picture 3> and <Picture 4> reference the same location", result[2])
+        self.assertIn("Coffee Shop is also known as Cafe Interior", result[2])
+        self.assertIn("Warm tungsten lighting, narrow counter, rainy front window.", result[2])
+        self.assertIn("Evening ambience, cramped but cozy.", result[2])
+        self.assertEqual(len(result), 3)
+
+    def test_helper_node_mappings_use_general_purpose_helpers(self):
+        mappings = self.image_nodes.NODE_CLASS_MAPPINGS
+        display = self.image_nodes.NODE_DISPLAY_NAME_MAPPINGS
+
+        self.assertIs(mappings["DumasCharacterHelper"], self.image_nodes.DumasCharacterHelperNode)
+        self.assertIs(mappings["DumasLocationHelper"], self.image_nodes.DumasLocationHelperNode)
+        self.assertEqual(display["DumasCharacterHelper"], "Dumas Character Helper")
+        self.assertEqual(display["DumasLocationHelper"], "Dumas Location Helper")
+
     def test_normalize_reference_upgrades_generic_summary_with_socket_picture_id(self):
         image = FakeTensorBatch()