CRT-Nodes for ComfyUI

This repository contains a comprehensive suite of custom nodes for ComfyUI, designed to provide advanced capabilities in Image Post-Processing, Audio Processing, FLUX/WanVideo workflows, and general utility management.

Note: Some nodes can require specific external libraries including pedalboard (audio), ultralytics (face detection), color-matcher, and sageattention.

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Node List

Audio Processing

A collection of tools for manipulating audio, visualizing waveforms, and synchronizing audio with video frames.

Node Name	Description
Tube Compressor	Advanced audio compressor with threshold, ratio, attack, release, and soft-clipping controls. Includes visual gain reduction metering.
Parametric EQ (CRT)	8-band parametric equalizer with interactive frequency response visualization. Supports Bell, Shelf, Pass, and Notch filters.
Preview Audio (CRT)	Enhanced audio player with waveform visualization, VU meters, LUFS metering, and scrubbing.
Audio/Manual Frame Count	Calculates the number of frames required for a video based on audio duration and FPS, with optional quantization for WanVideo models.
Video Duration Calculator	Simple utility to calculate duration in seconds from FPS and frame count.

Visual FX & Post-Processing

Nodes focused on image grading, effects, and restoration. The suite includes a primary All-In-One node and standalone effects.

Node Name	Description
CRT Post-Process Suite	Master node containing 12+ effect categories: Levels, Color Wheels, Temperature/Tint, Sharpening, Glow, Glare, Chromatic Aberration, Vignette, Radial Blur, Film Grain, and Lens Distortion.
Advanced Bloom FX	High-quality bloom effect with threshold, smoothing, radius, and intensity controls.
Arcane Bloom FX	Stylized bloom effect with saturation and exposure controls for a dreamlike look.
Clarity FX	Enhances local contrast and texture definition without affecting global brightness.
Color Isolation FX	Isolates specific hues while desaturating others, with adjustable falloff and background options.
Colourfulness FX	Adaptive saturation adjustment that prevents clipping using luma limits.
Contour FX	Edge detection node capable of generating line art or overlays.
Film Grain FX	Procedural film grain generator with shadow/highlight masking and color noise options.
Lens Distort FX	Simulates physical lens distortion including barrel/pincushion and chromatic separation.
Lens FX	Combined lens effects node offering chromatic aberration, vignette, and grain in a single pass.
Prism FX	Spectral dispersion effect that separates color channels radially.
Smart DeNoise FX	Reduces noise while preserving edges using sigma and threshold parameters.
Technicolor 2 FX	Emulates the 2-strip Technicolor process for vintage color grading.
Chroma Key Overlay	Basic green screen removal with spill suppression and background compositing.

GenAI Tools

Workflows and samplers optimized for diffusion models.

Node Name	Description
FLUX All-In-One (CRT)	Comprehensive node managing Models, LoRAs, ControlNet, Inpainting, Face Enhancement, and Upscaling in a tabbed interface.
Flux Controlnet Sampler	Specialized sampler for Flux models with integrated ControlNet support.
Flux Controlnet Sampler (Injection)	Extended sampler supporting noise injection for texture control.
Flux Tiled Sampler (Advanced)	Tiled sampling implementation for high-resolution generation with reduced VRAM usage.
Flux LoRA Blocks Patcher	Provides fine-grained control over Flux LoRA weights, allowing adjustment of specific Single and Double blocks via sliders.
Flux Semantic Encoder	CLIP/T5 text encoding node supporting "Semantic Shifting" and token injection.
Wan Batch Sampler	Specialized sampler for Wan2.1 video generation, managing High-Noise and Low-Noise model phases.
Wan2.2 LoRA Compare Sampler	Tool for comparing different LoRA configurations for Wan2.2 models side-by-side.
Wan Video Multi-LoRA Select	Interface for selecting and stacking multiple LoRAs for WanVideo workflows.
Face Enhancement Pipeline	Automated pipeline using YOLO models to detect, crop, upscale, and restore faces in images.
Pony Face Enhancement Pipeline	Variant of the face enhancement pipeline optimized for Pony-based models.
Pony Upscale Sampler	Upscaling sampler specialized for Pony models with noise injection capabilities.
Latent Noise Injection Sampler	Injects noise into latents at specific percentage steps during sampling to add detail or texture.
KSampler Batch (CRT)	Batch processing sampler supporting parallel and sequential modes.
Upscale using model adv (CRT)	Advanced model-based upscaler with tiling support and memory management.

Loaders & Crawlers

Smart loading nodes that can scan directories and select files based on seeds or specific criteria.

Node Name	Description
Audio Loader Crawl	Recursively scans a folder for audio files and selects one based on a seed value.
File Loader Crawl	Recursively scans a folder for text files and selects one based on a seed.
File Loader Crawl Batch	Batch version of the file loader, returning multiple strings from a directory.
Image Loader Crawl	Recursively scans a folder for images and selects one based on a seed.
Video Loader Crawl	Recursively scans a folder for video files and selects one based on a seed.
Load Last Image	Automatically loads the most recently modified image file from a specified directory.
Load Last Video	Automatically loads the most recently modified video file from a specified directory.
Load Last Latent	Automatically loads the most recently modified .safetensors latent file from a directory.
Load Video (V-Captioning)	Efficient video loader designed for captioning workflows, supporting frame skipping and limits.
Load & Resize Image	Loads an image and immediately resizes it to a target dimension or multiple.
LoRA Loader (String)	LoRA loader that outputs the LoRA name as a string for logging or logic purposes.

Savers

Nodes for saving various data types with customizable paths and naming conventions.

Node Name	Description
Save Image With Path	Saves images to a specific folder and subfolder structure.
Save Video With Path	Saves video files to a specific folder using FFmpeg.
Save Audio With Path	Saves audio waveforms to a specific folder as WAV files.
Save Text With Path	Saves text strings to a specific folder as TXT files.
Save Latent With Path	Saves latents to a specific folder as .safetensors files.

Logic & Utilities

Helper nodes for string manipulation, math, and workflow logic.

Node Name	Description
CRT String Batcher	Combines multiple string inputs into a single batch or concatenated string.
CRT String Splitter	Splits a text block into multiple string outputs based on delimiters or newlines.
CRT Dynamic Prompt Scheduler	Coordinate prompts and images for batch generation sequences.
File Batch Prompt Scheduler	Reads text files from a folder to create a scheduled batch of prompts.
Autoprompt Processor	Processes prompt strings with search/replace functionality and prefixing.
Advanced String Replace	Performs multiple find/replace operations on a string with exclusion lists.
Remove Trailing Comma	Cleans up prompt strings by removing trailing commas.
Smart Preprocessor	ControlNet preprocessor wrapper that bypasses processing if strength is set to 0.
Resolution Calculator	Calculates width and height based on aspect ratio and target megapixel count or side length.
Image Dimensions from MP	Calculates target dimensions from a total megapixel count.
Percentage Crop Calculator	Crops an image based on percentage values rather than pixels.
Quantize and Crop Image	Crops and resizes images to standard bucket sizes (e.g., 512, 768, 1024).
Get First & Last Frame	Extracts the start and end frames from a batch of images.
Seamless Loop Blender	Blends the start and end of an image batch to create a seamless loop.
Simple Toggle	Boolean switch for controlling workflow logic.
Simple Knob	Float value controller with a knob UI.
Boolean Invert	Inverts a boolean value (True -> False).
Boolean Transform	Converts numbers or strings into boolean values.
Strength to Steps	Calculates start/end steps based on a percentage strength value.
Mask Empty Float	Logic gate that outputs a float value depending on whether a mask is empty.
Mask Pass or Placeholder	Passes a mask if valid, or generates a placeholder mask if missing.
Enable Latent	Gate node to pass or block a latent based on a boolean toggle.
Empty Context	Generates a null context object for WanVideo workflows.
Toggle LoRA Blocks (L1/L2)	Helper nodes for generating block selection strings for LoRA patching.
Sampler Scheduler Selector	Simple dropdown selector for sampler and scheduler names.
Sampler & Scheduler Crawler	Iterates through sampler/scheduler combinations based on a seed for testing.
Smart Style Model Apply	Applies style models with caching and dual-input support.
Smart ControlNet Apply	Applies ControlNet with intelligent bypassing if strength is zero.
Clear Dual Style Cache	Utility to clear the cache of the Smart Style Model node.
Add Text Overlay	Adds text/settings overlays to images for comparison grids.
Fancy Note	A sticky note node for the graph with customizable colors and text size.
Fancy Timer	Displays execution time for workflows.