Files
PozzettiAndrea-ComfyUI-SAM3/__init__.py
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2026-02-10 02:55:49 +01:00

99 lines
3.5 KiB
Python

"""
ComfyUI-SAM3: SAM3 Integration for ComfyUI
This custom node package provides integration with Meta's SAM3 (Segment Anything Model 3)
for open-vocabulary image segmentation using text prompts and visual geometric refinement.
Main Node:
- LoadSAM3Model: Load SAM3 model (auto-downloads from HuggingFace)
- SAM3Segmentation: Segment with optional text/boxes/points/masks
Helper Nodes (Visual Prompt Creation):
- SAM3CreateBox: Visually create a box prompt using sliders
- SAM3CreatePoint: Visually create a point prompt using sliders
- SAM3CombineBoxes: Combine multiple box prompts (up to 5)
- SAM3CombinePoints: Combine multiple point prompts (up to 10)
Interactive Features:
- Right-click any node with IMAGE/MASK output → "Open in SAM3 Detector"
- Interactive point-and-click segmentation (left-click=positive, right-click=negative)
Video Tracking:
- SAM3VideoModelLoader, SAM3InitVideoSession, SAM3AddVideoPrompt
- SAM3PropagateVideo, SAM3VideoOutput, SAM3CloseVideoSession
Workflow Example:
[SAM3CreateBox] → [SAM3CombineBoxes] → [SAM3Segmentation] ← [LoadImage]
[SAM3CreatePoint] → [SAM3CombinePoints] ↗
All geometric refinement uses SAM3's grounding model approach.
No JSON typing required - pure visual node-based workflow!
Author: ComfyUI-SAM3
Version: 2.1.0
License: MIT
"""
# Only run initialization and imports when loaded by ComfyUI, not during pytest
# This prevents relative import errors when pytest collects test modules
import sys
import traceback
# Version info
__version__ = "2.1.0"
# Track initialization status
INIT_SUCCESS = False
INIT_ERRORS = []
if 'pytest' not in sys.modules:
print(f"[SAM3] ComfyUI-SAM3 v{__version__} initializing...")
# Step 1: Import node classes
try:
from .nodes import NODE_CLASS_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS
print("[SAM3] [OK] Node classes imported successfully")
INIT_SUCCESS = True
except Exception as e:
error_msg = f"Failed to import node classes: {str(e)}"
INIT_ERRORS.append(error_msg)
print(f"[SAM3] [WARNING] {error_msg}")
print(f"[SAM3] Traceback:\n{traceback.format_exc()}")
# Set empty mappings if import failed
NODE_CLASS_MAPPINGS = {}
NODE_DISPLAY_NAME_MAPPINGS = {}
# Step 2: Import server to register API endpoints
try:
from . import sam3_server
print("[SAM3] [OK] API endpoints registered")
except Exception as e:
error_msg = f"Failed to register API endpoints: {str(e)}"
INIT_ERRORS.append(error_msg)
print(f"[SAM3] [WARNING] {error_msg}")
print(f"[SAM3] Traceback:\n{traceback.format_exc()}")
# Report final status
if INIT_SUCCESS:
print(f"[SAM3] [OK] Loaded successfully!")
print(f"[SAM3] Available nodes: {', '.join(NODE_CLASS_MAPPINGS.keys())}")
print(f"[SAM3] Interactive SAM3 Detector: Right-click any IMAGE/MASK node → 'Open in SAM3 Detector'")
else:
print(f"[SAM3] [ERROR] Failed to load ({len(INIT_ERRORS)} error(s)):")
for error in INIT_ERRORS:
print(f" - {error}")
print("[SAM3] Please check the errors above and your installation.")
else:
# During testing, import from conftest mocks
print(f"[SAM3] ComfyUI-SAM3 v{__version__} running in pytest mode - skipping initialization")
NODE_CLASS_MAPPINGS = {}
NODE_DISPLAY_NAME_MAPPINGS = {}
# Web directory for custom UI (interactive SAM3 detector)
WEB_DIRECTORY = "./web"
# Export for ComfyUI
__all__ = ['NODE_CLASS_MAPPINGS', 'NODE_DISPLAY_NAME_MAPPINGS', 'WEB_DIRECTORY']