From Text to Video: How WanVideo and ControlNet Are Changing the Game
Workflow Overview

The primary purpose of this workflow is to generate high-quality video content from text or images. It combines the WanVideo model and ControlNet technology to generate dynamic videos based on input text prompts or images. This workflow is suitable for scenarios where video generation from text or images is required, such as advertising production, animation generation, etc.
Core Models
The core models used in the workflow include:
WanVideo: Used to generate video content, supporting video generation from text or images.
ControlNet: Used to control specific attributes of the generated video, such as style and motion.
CLIP: Used for embedding representations of text and images.
VAE: Used to encode and decode the latent representations of images.
T5 Text Encoder: Used to encode text prompts into embeddings understandable by the model.
Component Description
Key components (Nodes) in the workflow include:
WanVideoEmptyEmbeds: Generates empty image embeddings for video generation.
WanVideoBlockSwap: Controls block swap parameters during video generation.
WanVideoDecode: Decodes generated latent representations into images.
WanVideoSampler: Samples latent representations for video generation.
WanVideoTextEncode: Encodes text prompts into embeddings understandable by the model.
WanVideoImageClipEncode: Encodes images into embeddings understandable by the model.
WanVideoVAELoader: Loads the VAE model for encoding and decoding images.
VHS_VideoCombine: Combines generated image sequences into video files.
These components can be installed via ComfyUI Manager or manually from GitHub. Some components (such as WanVideo and ControlNet) require additional pre-trained models, which can be downloaded and installed from Hugging Face or GitHub.
Workflow Structure
The workflow can be divided into the following main groups:
Text-to-Video: Responsible for generating video content from text.
Image-to-Video: Responsible for generating video content from images.
The input parameters and expected outputs for each group are as follows:
Text-to-Video: Input parameters include text prompts and generation parameters, with the expected output being the generated video file.
Image-to-Video: Input parameters include images and generation parameters, with the expected output being the generated video file.
Input and Output
The expected input parameters for the entire workflow include:
Text Prompts: Text descriptions used to generate videos.
Images: Input images used to generate videos.
Resolution: The resolution of the generated video.
Frame Rate: The frame rate of the generated video.
Seed Value: Used to control the randomness of the generation process.
The workflow ultimately returns the generated video file in MP4 format.
Notes
When using the workflow, pay attention to the following points:
Error Handling: Some nodes may report errors due to mismatched input data or model loading failures, so carefully check input parameters.
Performance Optimization: The video generation process may consume a lot of GPU resources, so it is recommended to run on high-performance GPUs.
Compatibility Issues: Some components may depend on specific versions of libraries or models, so ensure the environment is configured correctly.
Resource Requirements: Depending on the complexity of the workflow, high GPU and memory resources may be required.