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from __future__ import annotations
from inspect import cleandoc
from typing import Optional
from comfy.comfy_types.node_typing import IO, ComfyNodeABC
from comfy_api.input_impl.video_types import VideoFromFile
from comfy_api_nodes.apis.luma_api import (
LumaImageModel,
LumaVideoModel,
LumaVideoOutputResolution,
LumaVideoModelOutputDuration,
LumaAspectRatio,
LumaState,
LumaImageGenerationRequest,
LumaGenerationRequest,
LumaGeneration,
LumaCharacterRef,
LumaModifyImageRef,
LumaImageIdentity,
LumaReference,
LumaReferenceChain,
LumaImageReference,
LumaKeyframes,
LumaConceptChain,
LumaIO,
get_luma_concepts,
)
from comfy_api_nodes.apis.client import (
ApiEndpoint,
HttpMethod,
SynchronousOperation,
PollingOperation,
EmptyRequest,
)
from comfy_api_nodes.apinode_utils import (
upload_images_to_comfyapi,
process_image_response,
validate_string,
)
from server import PromptServer
import requests
import torch
from io import BytesIO
LUMA_T2V_AVERAGE_DURATION = 105
LUMA_I2V_AVERAGE_DURATION = 100
def image_result_url_extractor(response: LumaGeneration):
return response.assets.image if hasattr(response, "assets") and hasattr(response.assets, "image") else None
def video_result_url_extractor(response: LumaGeneration):
return response.assets.video if hasattr(response, "assets") and hasattr(response.assets, "video") else None
class LumaReferenceNode(ComfyNodeABC):
"""
Holds an image and weight for use with Luma Generate Image node.
"""
RETURN_TYPES = (LumaIO.LUMA_REF,)
RETURN_NAMES = ("luma_ref",)
DESCRIPTION = cleandoc(__doc__ or "") # Handle potential None value
FUNCTION = "create_luma_reference"
CATEGORY = "api node/image/Luma"
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"image": (
IO.IMAGE,
{
"tooltip": "Image to use as reference.",
},
),
"weight": (
IO.FLOAT,
{
"default": 1.0,
"min": 0.0,
"max": 1.0,
"step": 0.01,
"tooltip": "Weight of image reference.",
},
),
},
"optional": {"luma_ref": (LumaIO.LUMA_REF,)},
}
def create_luma_reference(
self, image: torch.Tensor, weight: float, luma_ref: LumaReferenceChain = None
):
if luma_ref is not None:
luma_ref = luma_ref.clone()
else:
luma_ref = LumaReferenceChain()
luma_ref.add(LumaReference(image=image, weight=round(weight, 2)))
return (luma_ref,)
class LumaConceptsNode(ComfyNodeABC):
"""
Holds one or more Camera Concepts for use with Luma Text to Video and Luma Image to Video nodes.
"""
RETURN_TYPES = (LumaIO.LUMA_CONCEPTS,)
RETURN_NAMES = ("luma_concepts",)
DESCRIPTION = cleandoc(__doc__ or "") # Handle potential None value
FUNCTION = "create_concepts"
CATEGORY = "api node/video/Luma"
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"concept1": (get_luma_concepts(include_none=True),),
"concept2": (get_luma_concepts(include_none=True),),
"concept3": (get_luma_concepts(include_none=True),),
"concept4": (get_luma_concepts(include_none=True),),
},
"optional": {
"luma_concepts": (
LumaIO.LUMA_CONCEPTS,
{
"tooltip": "Optional Camera Concepts to add to the ones chosen here."
},
),
},
}
def create_concepts(
self,
concept1: str,
concept2: str,
concept3: str,
concept4: str,
luma_concepts: LumaConceptChain = None,
):
chain = LumaConceptChain(str_list=[concept1, concept2, concept3, concept4])
if luma_concepts is not None:
chain = luma_concepts.clone_and_merge(chain)
return (chain,)
class LumaImageGenerationNode(ComfyNodeABC):
"""
Generates images synchronously based on prompt and aspect ratio.
"""
RETURN_TYPES = (IO.IMAGE,)
DESCRIPTION = cleandoc(__doc__ or "") # Handle potential None value
FUNCTION = "api_call"
API_NODE = True
CATEGORY = "api node/image/Luma"
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"prompt": (
IO.STRING,
{
"multiline": True,
"default": "",
"tooltip": "Prompt for the image generation",
},
),
"model": ([model.value for model in LumaImageModel],),
"aspect_ratio": (
[ratio.value for ratio in LumaAspectRatio],
{
"default": LumaAspectRatio.ratio_16_9,
},
),
"seed": (
IO.INT,
{
"default": 0,
"min": 0,
"max": 0xFFFFFFFFFFFFFFFF,
"control_after_generate": True,
"tooltip": "Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
},
),
"style_image_weight": (
IO.FLOAT,
{
"default": 1.0,
"min": 0.0,
"max": 1.0,
"step": 0.01,
"tooltip": "Weight of style image. Ignored if no style_image provided.",
},
),
},
"optional": {
"image_luma_ref": (
LumaIO.LUMA_REF,
{
"tooltip": "Luma Reference node connection to influence generation with input images; up to 4 images can be considered."
},
),
"style_image": (
IO.IMAGE,
{"tooltip": "Style reference image; only 1 image will be used."},
),
"character_image": (
IO.IMAGE,
{
"tooltip": "Character reference images; can be a batch of multiple, up to 4 images can be considered."
},
),
},
"hidden": {
"auth_token": "AUTH_TOKEN_COMFY_ORG",
"comfy_api_key": "API_KEY_COMFY_ORG",
"unique_id": "UNIQUE_ID",
},
}
def api_call(
self,
prompt: str,
model: str,
aspect_ratio: str,
seed,
style_image_weight: float,
image_luma_ref: LumaReferenceChain = None,
style_image: torch.Tensor = None,
character_image: torch.Tensor = None,
unique_id: str = None,
**kwargs,
):
validate_string(prompt, strip_whitespace=True, min_length=3)
# handle image_luma_ref
api_image_ref = None
if image_luma_ref is not None:
api_image_ref = self._convert_luma_refs(
image_luma_ref, max_refs=4, auth_kwargs=kwargs,
)
# handle style_luma_ref
api_style_ref = None
if style_image is not None:
api_style_ref = self._convert_style_image(
style_image, weight=style_image_weight, auth_kwargs=kwargs,
)
# handle character_ref images
character_ref = None
if character_image is not None:
download_urls = upload_images_to_comfyapi(
character_image, max_images=4, auth_kwargs=kwargs,
)
character_ref = LumaCharacterRef(
identity0=LumaImageIdentity(images=download_urls)
)
operation = SynchronousOperation(
endpoint=ApiEndpoint(
path="/proxy/luma/generations/image",
method=HttpMethod.POST,
request_model=LumaImageGenerationRequest,
response_model=LumaGeneration,
),
request=LumaImageGenerationRequest(
prompt=prompt,
model=model,
aspect_ratio=aspect_ratio,
image_ref=api_image_ref,
style_ref=api_style_ref,
character_ref=character_ref,
),
auth_kwargs=kwargs,
)
response_api: LumaGeneration = operation.execute()
operation = PollingOperation(
poll_endpoint=ApiEndpoint(
path=f"/proxy/luma/generations/{response_api.id}",
method=HttpMethod.GET,
request_model=EmptyRequest,
response_model=LumaGeneration,
),
completed_statuses=[LumaState.completed],
failed_statuses=[LumaState.failed],
status_extractor=lambda x: x.state,
result_url_extractor=image_result_url_extractor,
node_id=unique_id,
auth_kwargs=kwargs,
)
response_poll = operation.execute()
img_response = requests.get(response_poll.assets.image)
img = process_image_response(img_response)
return (img,)
def _convert_luma_refs(
self, luma_ref: LumaReferenceChain, max_refs: int, auth_kwargs: Optional[dict[str,str]] = None
):
luma_urls = []
ref_count = 0
for ref in luma_ref.refs:
download_urls = upload_images_to_comfyapi(
ref.image, max_images=1, auth_kwargs=auth_kwargs
)
luma_urls.append(download_urls[0])
ref_count += 1
if ref_count >= max_refs:
break
return luma_ref.create_api_model(download_urls=luma_urls, max_refs=max_refs)
def _convert_style_image(
self, style_image: torch.Tensor, weight: float, auth_kwargs: Optional[dict[str,str]] = None
):
chain = LumaReferenceChain(
first_ref=LumaReference(image=style_image, weight=weight)
)
return self._convert_luma_refs(chain, max_refs=1, auth_kwargs=auth_kwargs)
class LumaImageModifyNode(ComfyNodeABC):
"""
Modifies images synchronously based on prompt and aspect ratio.
"""
RETURN_TYPES = (IO.IMAGE,)
DESCRIPTION = cleandoc(__doc__ or "") # Handle potential None value
FUNCTION = "api_call"
API_NODE = True
CATEGORY = "api node/image/Luma"
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"image": (IO.IMAGE,),
"prompt": (
IO.STRING,
{
"multiline": True,
"default": "",
"tooltip": "Prompt for the image generation",
},
),
"image_weight": (
IO.FLOAT,
{
"default": 0.1,
"min": 0.0,
"max": 0.98,
"step": 0.01,
"tooltip": "Weight of the image; the closer to 1.0, the less the image will be modified.",
},
),
"model": ([model.value for model in LumaImageModel],),
"seed": (
IO.INT,
{
"default": 0,
"min": 0,
"max": 0xFFFFFFFFFFFFFFFF,
"control_after_generate": True,
"tooltip": "Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
},
),
},
"optional": {},
"hidden": {
"auth_token": "AUTH_TOKEN_COMFY_ORG",
"comfy_api_key": "API_KEY_COMFY_ORG",
"unique_id": "UNIQUE_ID",
},
}
def api_call(
self,
prompt: str,
model: str,
image: torch.Tensor,
image_weight: float,
seed,
unique_id: str = None,
**kwargs,
):
# first, upload image
download_urls = upload_images_to_comfyapi(
image, max_images=1, auth_kwargs=kwargs,
)
image_url = download_urls[0]
# next, make Luma call with download url provided
operation = SynchronousOperation(
endpoint=ApiEndpoint(
path="/proxy/luma/generations/image",
method=HttpMethod.POST,
request_model=LumaImageGenerationRequest,
response_model=LumaGeneration,
),
request=LumaImageGenerationRequest(
prompt=prompt,
model=model,
modify_image_ref=LumaModifyImageRef(
url=image_url, weight=round(max(min(1.0-image_weight, 0.98), 0.0), 2)
),
),
auth_kwargs=kwargs,
)
response_api: LumaGeneration = operation.execute()
operation = PollingOperation(
poll_endpoint=ApiEndpoint(
path=f"/proxy/luma/generations/{response_api.id}",
method=HttpMethod.GET,
request_model=EmptyRequest,
response_model=LumaGeneration,
),
completed_statuses=[LumaState.completed],
failed_statuses=[LumaState.failed],
status_extractor=lambda x: x.state,
result_url_extractor=image_result_url_extractor,
node_id=unique_id,
auth_kwargs=kwargs,
)
response_poll = operation.execute()
img_response = requests.get(response_poll.assets.image)
img = process_image_response(img_response)
return (img,)
class LumaTextToVideoGenerationNode(ComfyNodeABC):
"""
Generates videos synchronously based on prompt and output_size.
"""
RETURN_TYPES = (IO.VIDEO,)
DESCRIPTION = cleandoc(__doc__ or "") # Handle potential None value
FUNCTION = "api_call"
API_NODE = True
CATEGORY = "api node/video/Luma"
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"prompt": (
IO.STRING,
{
"multiline": True,
"default": "",
"tooltip": "Prompt for the video generation",
},
),
"model": ([model.value for model in LumaVideoModel],),
"aspect_ratio": (
[ratio.value for ratio in LumaAspectRatio],
{
"default": LumaAspectRatio.ratio_16_9,
},
),
"resolution": (
[resolution.value for resolution in LumaVideoOutputResolution],
{
"default": LumaVideoOutputResolution.res_540p,
},
),
"duration": ([dur.value for dur in LumaVideoModelOutputDuration],),
"loop": (
IO.BOOLEAN,
{
"default": False,
},
),
"seed": (
IO.INT,
{
"default": 0,
"min": 0,
"max": 0xFFFFFFFFFFFFFFFF,
"control_after_generate": True,
"tooltip": "Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
},
),
},
"optional": {
"luma_concepts": (
LumaIO.LUMA_CONCEPTS,
{
"tooltip": "Optional Camera Concepts to dictate camera motion via the Luma Concepts node."
},
),
},
"hidden": {
"auth_token": "AUTH_TOKEN_COMFY_ORG",
"comfy_api_key": "API_KEY_COMFY_ORG",
"unique_id": "UNIQUE_ID",
},
}
def api_call(
self,
prompt: str,
model: str,
aspect_ratio: str,
resolution: str,
duration: str,
loop: bool,
seed,
luma_concepts: LumaConceptChain = None,
unique_id: str = None,
**kwargs,
):
validate_string(prompt, strip_whitespace=False, min_length=3)
duration = duration if model != LumaVideoModel.ray_1_6 else None
resolution = resolution if model != LumaVideoModel.ray_1_6 else None
operation = SynchronousOperation(
endpoint=ApiEndpoint(
path="/proxy/luma/generations",
method=HttpMethod.POST,
request_model=LumaGenerationRequest,
response_model=LumaGeneration,
),
request=LumaGenerationRequest(
prompt=prompt,
model=model,
resolution=resolution,
aspect_ratio=aspect_ratio,
duration=duration,
loop=loop,
concepts=luma_concepts.create_api_model() if luma_concepts else None,
),
auth_kwargs=kwargs,
)
response_api: LumaGeneration = operation.execute()
if unique_id:
PromptServer.instance.send_progress_text(f"Luma video generation started: {response_api.id}", unique_id)
operation = PollingOperation(
poll_endpoint=ApiEndpoint(
path=f"/proxy/luma/generations/{response_api.id}",
method=HttpMethod.GET,
request_model=EmptyRequest,
response_model=LumaGeneration,
),
completed_statuses=[LumaState.completed],
failed_statuses=[LumaState.failed],
status_extractor=lambda x: x.state,
result_url_extractor=video_result_url_extractor,
node_id=unique_id,
estimated_duration=LUMA_T2V_AVERAGE_DURATION,
auth_kwargs=kwargs,
)
response_poll = operation.execute()
vid_response = requests.get(response_poll.assets.video)
return (VideoFromFile(BytesIO(vid_response.content)),)
class LumaImageToVideoGenerationNode(ComfyNodeABC):
"""
Generates videos synchronously based on prompt, input images, and output_size.
"""
RETURN_TYPES = (IO.VIDEO,)
DESCRIPTION = cleandoc(__doc__ or "") # Handle potential None value
FUNCTION = "api_call"
API_NODE = True
CATEGORY = "api node/video/Luma"
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"prompt": (
IO.STRING,
{
"multiline": True,
"default": "",
"tooltip": "Prompt for the video generation",
},
),
"model": ([model.value for model in LumaVideoModel],),
# "aspect_ratio": ([ratio.value for ratio in LumaAspectRatio], {
# "default": LumaAspectRatio.ratio_16_9,
# }),
"resolution": (
[resolution.value for resolution in LumaVideoOutputResolution],
{
"default": LumaVideoOutputResolution.res_540p,
},
),
"duration": ([dur.value for dur in LumaVideoModelOutputDuration],),
"loop": (
IO.BOOLEAN,
{
"default": False,
},
),
"seed": (
IO.INT,
{
"default": 0,
"min": 0,
"max": 0xFFFFFFFFFFFFFFFF,
"control_after_generate": True,
"tooltip": "Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
},
),
},
"optional": {
"first_image": (
IO.IMAGE,
{"tooltip": "First frame of generated video."},
),
"last_image": (IO.IMAGE, {"tooltip": "Last frame of generated video."}),
"luma_concepts": (
LumaIO.LUMA_CONCEPTS,
{
"tooltip": "Optional Camera Concepts to dictate camera motion via the Luma Concepts node."
},
),
},
"hidden": {
"auth_token": "AUTH_TOKEN_COMFY_ORG",
"comfy_api_key": "API_KEY_COMFY_ORG",
"unique_id": "UNIQUE_ID",
},
}
def api_call(
self,
prompt: str,
model: str,
resolution: str,
duration: str,
loop: bool,
seed,
first_image: torch.Tensor = None,
last_image: torch.Tensor = None,
luma_concepts: LumaConceptChain = None,
unique_id: str = None,
**kwargs,
):
if first_image is None and last_image is None:
raise Exception(
"At least one of first_image and last_image requires an input."
)
keyframes = self._convert_to_keyframes(first_image, last_image, auth_kwargs=kwargs)
duration = duration if model != LumaVideoModel.ray_1_6 else None
resolution = resolution if model != LumaVideoModel.ray_1_6 else None
operation = SynchronousOperation(
endpoint=ApiEndpoint(
path="/proxy/luma/generations",
method=HttpMethod.POST,
request_model=LumaGenerationRequest,
response_model=LumaGeneration,
),
request=LumaGenerationRequest(
prompt=prompt,
model=model,
aspect_ratio=LumaAspectRatio.ratio_16_9, # ignored, but still needed by the API for some reason
resolution=resolution,
duration=duration,
loop=loop,
keyframes=keyframes,
concepts=luma_concepts.create_api_model() if luma_concepts else None,
),
auth_kwargs=kwargs,
)
response_api: LumaGeneration = operation.execute()
if unique_id:
PromptServer.instance.send_progress_text(f"Luma video generation started: {response_api.id}", unique_id)
operation = PollingOperation(
poll_endpoint=ApiEndpoint(
path=f"/proxy/luma/generations/{response_api.id}",
method=HttpMethod.GET,
request_model=EmptyRequest,
response_model=LumaGeneration,
),
completed_statuses=[LumaState.completed],
failed_statuses=[LumaState.failed],
status_extractor=lambda x: x.state,
result_url_extractor=video_result_url_extractor,
node_id=unique_id,
estimated_duration=LUMA_I2V_AVERAGE_DURATION,
auth_kwargs=kwargs,
)
response_poll = operation.execute()
vid_response = requests.get(response_poll.assets.video)
return (VideoFromFile(BytesIO(vid_response.content)),)
def _convert_to_keyframes(
self,
first_image: torch.Tensor = None,
last_image: torch.Tensor = None,
auth_kwargs: Optional[dict[str,str]] = None,
):
if first_image is None and last_image is None:
return None
frame0 = None
frame1 = None
if first_image is not None:
download_urls = upload_images_to_comfyapi(
first_image, max_images=1, auth_kwargs=auth_kwargs,
)
frame0 = LumaImageReference(type="image", url=download_urls[0])
if last_image is not None:
download_urls = upload_images_to_comfyapi(
last_image, max_images=1, auth_kwargs=auth_kwargs,
)
frame1 = LumaImageReference(type="image", url=download_urls[0])
return LumaKeyframes(frame0=frame0, frame1=frame1)
# A dictionary that contains all nodes you want to export with their names
# NOTE: names should be globally unique
NODE_CLASS_MAPPINGS = {
"LumaImageNode": LumaImageGenerationNode,
"LumaImageModifyNode": LumaImageModifyNode,
"LumaVideoNode": LumaTextToVideoGenerationNode,
"LumaImageToVideoNode": LumaImageToVideoGenerationNode,
"LumaReferenceNode": LumaReferenceNode,
"LumaConceptsNode": LumaConceptsNode,
}
# A dictionary that contains the friendly/humanly readable titles for the nodes
NODE_DISPLAY_NAME_MAPPINGS = {
"LumaImageNode": "Luma Text to Image",
"LumaImageModifyNode": "Luma Image to Image",
"LumaVideoNode": "Luma Text to Video",
"LumaImageToVideoNode": "Luma Image to Video",
"LumaReferenceNode": "Luma Reference",
"LumaConceptsNode": "Luma Concepts",
}
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