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Conor-Collins-ComfyUI-CoCoT…/modules/load_exr_layer_by_name.py
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2025-04-21 05:10:10 -07:00

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11 KiB
Python

import torch
import logging
from typing import Dict, List, Union, Any
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
class load_exr_layer_by_name:
"""
The Load EXR Layer by Name node allows selecting a specific layer from an EXR layer dictionary.
It works like Nuke's Shuffle node, allowing users to pick a specific layer to output.
"""
# Class variables to store available layer names
available_layers = ["none"]
def __init__(self):
logger.info("load_exr_layer_by_name class initialized")
@classmethod
def INPUT_TYPES(cls):
logger.info(f"INPUT_TYPES called - available layers: {cls.available_layers}")
return {
"required": {
"layers": ("LAYERS",),
"layer_name": ("STRING", {
"default": "none",
"multiline": False,
"description": "Name of the layer to extract from the EXR. You can find layer names in the metadata output of the Load EXR node."
})
},
"optional": {
"conversion": (["Auto", "To RGB", "To Mask"], {
"default": "Auto"
})
}
}
RETURN_TYPES = ("IMAGE", "MASK")
RETURN_NAMES = ("image", "mask")
FUNCTION = "process_layer"
CATEGORY = "Image/EXR"
def process_layer(self, layers: Dict[str, torch.Tensor], layer_name: str,
conversion: str = "Auto") -> List[Union[torch.Tensor, None]]:
"""
Extract a specific layer from the layers dictionary.
Args:
layers: Dictionary of layer names to tensors
layer_name: Name of the layer to extract
conversion: How to convert the layer (Auto, To RGB, To Mask)
Returns:
List containing [image, mask] tensors
"""
# Check if we have any layers at all
if not layers or len(layers) == 0:
logger.warning("No layers available in the input")
return [torch.zeros((1, 1, 1, 3)), torch.zeros((1, 1, 1))]
# Update the class variable with available layer names
self.__class__.available_layers = ["none"] + sorted(list(layers.keys()))
# If the layer doesn't exist, try to find a close match
if layer_name not in layers and layer_name != "none":
# Try to find an exact match ignoring case
case_insensitive_matches = [l for l in layers.keys() if l.lower() == layer_name.lower()]
if case_insensitive_matches:
layer_name = case_insensitive_matches[0]
logger.info(f"Layer name '{layer_name}' found with different case: '{layer_name}'")
else:
# Try to find a partial match
matches = [l for l in layers.keys() if layer_name.lower() in l.lower()]
if matches:
# Sort matches by length to find the closest match
matches.sort(key=len)
layer_name = matches[0]
logger.info(f"Layer name '{layer_name}' not found exactly, using closest match: '{layer_name}'")
else:
# Try to match hierarchical names (e.g., "CITY SCENE.AO" when user enters "AO")
hierarchical_matches = []
for l in layers.keys():
if '.' in l:
parts = l.split('.')
# Check if any part matches the layer name
if any(part.lower() == layer_name.lower() for part in parts):
hierarchical_matches.append(l)
if hierarchical_matches:
layer_name = hierarchical_matches[0]
logger.info(f"Found hierarchical layer match: '{layer_name}'")
else:
logger.warning(f"Layer '{layer_name}' not found and no close matches")
# Use the first available layer as fallback
if len(layers) > 0:
layer_name = list(layers.keys())[0]
logger.info(f"Using first available layer: {layer_name}")
else:
return [torch.zeros((1, 1, 1, 3)), torch.zeros((1, 1, 1))]
# If no layer is specified or "none" is selected, return empty tensors
if not layer_name or layer_name == "none":
logger.warning("No layer specified, returning empty tensors")
return [torch.zeros((1, 1, 1, 3)), torch.zeros((1, 1, 1))]
# Get the requested layer
layer_tensor = layers[layer_name]
# Check tensor shape to determine its type
if len(layer_tensor.shape) == 4 and layer_tensor.shape[3] == 3:
# It's an RGB tensor [1, H, W, 3]
if conversion == "To Mask":
# Convert RGB to mask by taking the mean across channels
mask_output = layer_tensor.mean(dim=3, keepdim=False)
image_output = None
else:
# Keep as an image
image_output = layer_tensor
mask_output = None
elif len(layer_tensor.shape) == 3:
# It's a mask/single-channel tensor [1, H, W]
if conversion == "To RGB":
# Convert mask to RGB by replicating to 3 channels
image_output = torch.cat([layer_tensor.unsqueeze(3)] * 3, dim=3)
mask_output = None
else:
# Keep as a mask
mask_output = layer_tensor
image_output = None
else:
# Unknown format, log error
logger.error(f"Layer '{layer_name}' has an unsupported tensor shape: {layer_tensor.shape}")
return [torch.zeros((1, 1, 1, 3)), torch.zeros((1, 1, 1))]
# Set placeholder for any None outputs
if image_output is None:
image_output = torch.zeros((1, 1, 1, 3))
if mask_output is None:
mask_output = torch.zeros((1, 1, 1))
return [image_output, mask_output]
# Define a copy of the main class for cryptomatte layers
class shamble_cryptomatte(load_exr_layer_by_name):
"""
The Cryptomatte Shamble node allows selecting a specific cryptomatte layer from an EXR dictionary.
It is identical to the Load EXR Layer by Name node but filters for cryptomatte layers only.
"""
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"cryptomatte": ("CRYPTOMATTE",),
"layer_name": ("STRING", {
"default": "none",
"multiline": False,
"description": "Name of the cryptomatte layer to extract. Look for names starting with 'crypto' in the metadata."
})
}
}
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("image",)
FUNCTION = "process_cryptomatte"
CATEGORY = "Image/EXR"
def process_cryptomatte(self, cryptomatte: Dict[str, torch.Tensor], layer_name: str) -> List[torch.Tensor]:
"""
Extract a specific cryptomatte layer.
Args:
cryptomatte: Dictionary of cryptomatte layer names to tensors
layer_name: Name of the cryptomatte layer to extract
Returns:
List containing the cryptomatte image tensor
"""
# Check if we have any layers at all
if not cryptomatte or len(cryptomatte) == 0:
logger.warning("No cryptomatte layers available in the input")
return [torch.zeros((1, 1, 1, 3))]
# Update the class variable with available cryptomatte layer names
self.__class__.available_layers = ["none"] + sorted(list(cryptomatte.keys()))
# If the layer doesn't exist, try to find a close match
if layer_name not in cryptomatte and layer_name != "none":
# Try to find an exact match ignoring case
case_insensitive_matches = [l for l in cryptomatte.keys() if l.lower() == layer_name.lower()]
if case_insensitive_matches:
layer_name = case_insensitive_matches[0]
logger.info(f"Cryptomatte layer name '{layer_name}' found with different case: '{layer_name}'")
else:
# Try to find a partial match
matches = [l for l in cryptomatte.keys() if layer_name.lower() in l.lower()]
if matches:
# Sort matches by length to find the closest match
matches.sort(key=len)
layer_name = matches[0]
logger.info(f"Cryptomatte layer name '{layer_name}' not found exactly, using closest match: '{layer_name}'")
else:
# Try to match hierarchical names (e.g., "CITY SCENE.CryptoAsset00" when user enters "CryptoAsset")
hierarchical_matches = []
for l in cryptomatte.keys():
if '.' in l:
parts = l.split('.')
# Check if any part matches the layer name
if any(part.lower() == layer_name.lower() for part in parts):
hierarchical_matches.append(l)
if hierarchical_matches:
layer_name = hierarchical_matches[0]
logger.info(f"Found hierarchical cryptomatte layer match: '{layer_name}'")
else:
logger.warning(f"Cryptomatte layer '{layer_name}' not found and no close matches")
# Use the first available layer as fallback
if len(cryptomatte) > 0:
layer_name = list(cryptomatte.keys())[0]
logger.info(f"Using first available cryptomatte layer: {layer_name}")
else:
return [torch.zeros((1, 1, 1, 3))]
# If no layer is specified or "none" is selected, return an empty tensor
if not layer_name or layer_name == "none":
logger.warning("No cryptomatte layer specified, returning empty tensor")
return [torch.zeros((1, 1, 1, 3))]
# Return the requested cryptomatte layer
return [cryptomatte[layer_name]]
NODE_CLASS_MAPPINGS = {
"load_exr_layer_by_name": load_exr_layer_by_name,
"shamble_cryptomatte": shamble_cryptomatte
}
NODE_DISPLAY_NAME_MAPPINGS = {
"load_exr_layer_by_name": "Load EXR Layer by Name",
"shamble_cryptomatte": "Cryptomatte Layer"
}