Create Consistent, Editable AI Characters & Backgrounds for your Projects! (ComfyUI Tutorial)
TLDRIn this ComfyUI tutorial, learn how to create consistent, editable AI characters and integrate them into AI-generated backgrounds. This workflow, compatible with Stable Diffusion 1.5 and SDXL, allows you to control character emotions with simple prompts. The tutorial covers generating multiple character views, using control nets, and refining faces. It also includes steps for posing characters, creating backgrounds, and improving integration with various tools. Perfect for creating AI influencers, children’s books, or AI movies. Download resources and follow the step-by-step guide available on the creator's Patreon.
Takeaways
- 😀 The video tutorial demonstrates how to create AI characters with consistent appearances and emotions using Stable Diffusion 1.5 and SDXL.
- 🎨 A post sheet is provided to generate multiple views of a character from different angles, which can be downloaded for free on the creator's Patreon.
- 🤖 The workflow incorporates control net to generate characters based on the post sheet's bone structure, enhancing the automatic generation process.
- 🔧 Custom settings are necessary for using the workflow with different models, including adjusting the pre-processor and sampler settings.
- 📚 A free step-by-step guide is offered to help users install and set up the workflow, including model acquisition and folder structure organization.
- 🧀 The creator illustrates the process by generating an AI influencer character for a niche market—cheese, with a friendly German character as an example.
- 🔄 The generation process allows for adjustments and re-prompting to refine character appearance, such as adding a mustache for a better fit.
- 🖼️ The workflow includes steps for upscaling images, enhancing face details, and saving different character poses and expressions as separate images.
- 🌄 Once the character is generated, the workflow can integrate them into AI-generated backgrounds, adjusting for lighting and focus to create a cohesive scene.
- 👤 The character's likeness can be preserved across different images, and further personalized with additional descriptive prompts and settings.
- 🔄 The final workflow allows for the character to be posed and placed into various backgrounds, with options to adjust expressions and refine the image quality.
- 📈 The video also suggests potential uses for the generated characters, such as training a model on the character's images or using them in different locations with Mid Journey's character reference tool.
Q & A
What is the main purpose of the video?
-The main purpose of the video is to demonstrate how to create consistent, editable AI characters and backgrounds for various projects using ComfyUI and Stable Diffusion 1.5 or SDXL.
What is the workflow's compatibility with different AI models?
-The workflow is compatible with Stable Diffusion 1.5 and SDXL, which means it can work with any style and can be used for projects like children's books, AI movies, or AI influencers.
What is the significance of generating multiple views of a character in the same image?
-Generating multiple views of a character in the same image allows for a more comprehensive understanding of the character's design and enables automatic POSing and integration into AI-generated backgrounds.
Can viewers download the post sheet for free?
-Yes, viewers can download the post sheet for free from the creator's Patreon page.
What is the role of the 'control net' in generating characters?
-The control net is used to generate characters based on the bones depicted in the post sheet, allowing for the creation of characters in various poses and angles.
What is the recommended model to use for faster generation in ComfyUI?
-The Wildcard XL Turbo model is recommended for faster generation, but any model can be used as long as the K sampler settings match the recommended ones for that model.
How can one ensure consistency in character generation?
-To ensure consistency, one can stop the generation process by clicking 'view q' and 'cancel' if the characters are in weird poses or look inconsistent, then add more descriptive prompts and adjust the seat in the sampler.
What is the purpose of the face detailer in the workflow?
-The face detailer automatically detects all the faces in the image and red diffuses them to improve the quality and consistency of the faces.
How can the character's expressions be generated and controlled?
-Expressions can be generated using the face detailer with additional prompts like 'Pixar character'. The 'dooy strength' setting determines how strong the new generated expression will be.
What is the final step in the workflow for creating a character sheet?
-The final step is to add all the different expressions together, upscale them, and also upscale the single image of the face to complete the character sheet.
How can the character be integrated into different locations and backgrounds?
-The character can be integrated into different locations and backgrounds by using the controllable character workflow, which involves posing the character, generating a fitting background, integrating the character into the background, and adjusting the expression and face if needed.
What is the use of the IP adapter in the workflow?
-The IP adapter takes the likeness of a character and transfers it into a prompt, ensuring that all generated characters closely resemble the original character.
How can one train their own model for the character?
-One can train their own model for the character by saving out all the different images of the character's faces and using them to train the model based on these images.
What is the role of the 'openpose.ai' in creating character poses?
-Openpose.ai is used to create and adjust character poses by moving a skeleton into the desired pose, including individual fingers, and setting the scene height, width, focal length, and proportions to match the generated image.
How can one generate a fitting background for the character?
-A fitting background can be generated by using the workflow's background generation step, where one can specify the type of background and adjust settings to match the character's appearance and the desired scene.
What are the different ways to fix seams and integrate the character into the background?
-There are three ways to fix seams: connecting the second mask to the latent noise mask, connecting the first mask to the latent noise mask to denoise the full background, and using the crop note to move around the background. Additionally, activating the blur note can help with different focal planes and create a more cinematic look.
How can one change the character's pose or generate new poses?
-To change the character's pose, one can create a new pose in the open pose editor, change out the images in the control net, and click 'Cube prompt'. Alternatively, control nets can be deactivated to let Stable Diffusion create poses automatically.
What is the purpose of the 'auto que' feature in generating multiple images?
-The 'auto que' feature allows for the automatic generation of hundreds of images of the character in different poses and locations by setting the seed in the samplers to random.
Outlines
🎨 AI Character Creation and Workflow
This paragraph introduces a video tutorial on creating AI-generated characters using Stable Diffusion 1.5 and SDXL. The workflow allows for automatic posing, integration into AI backgrounds, and control over character emotions through simple prompts. The key to this method is generating multiple character views in a single image, facilitated by a downloadable post sheet available on Patreon. The post sheet features character bones from various angles in open pose format, which can be used with ControlNet for character generation. The video also covers setting up the workflow in COMI, including installing necessary models and configuring the folder structure. The tutorial demonstrates creating an AI influencer character with a unique niche, such as a cheese influencer, by adjusting the prompt and using descriptive language to refine the character's appearance. The process involves generating a preview, upscaling the image, using a face detailer for consistency, and saving different poses as separate images. The paragraph concludes with a mention of training a model using the generated images and the potential for using the character in various applications.
🖼️ Integrating AI Characters into Backgrounds
The second paragraph of the script delves into integrating AI-generated characters into different backgrounds using a controllable character workflow. This workflow consists of three steps: posing the character, generating a fitting background, and integrating the character into the background. The process involves using a model to remove the background, fixing seams between the character and background, adjusting focal planes and lighting, and potentially denoising the image to better match the character. The paragraph also discusses using Openpose.ai to create character poses and transferring the likeness of the character into a prompt for consistency. Additionally, it covers the use of IP adapters, creating poses, and adjusting the character's appearance to fit the generated background. The workflow is shown to be adaptable for various poses and can be used to create a wide range of images with the character in different locations and situations.
🧀 Character Customization and Promotion
The final paragraph focuses on customizing the AI character and using it for promotional purposes. It describes how to add elements to the character, such as holding pieces of cheese, by adjusting the positive prompt and reducing the weight of the control nets. The paragraph also touches on the possibility of letting Stable Diffusion create poses automatically, providing a more diverse range of character images. The video script suggests using Auto que and random settings in samplers to generate hundreds of images of the character in various poses and locations. The paragraph concludes by encouraging viewers to explore and personalize the workflow, and it offers exclusive example files and additional resources for Patreon supporters. It also humorously suggests that those in the cheese industry could book the AI character for presentations.
Mindmap
Keywords
💡Stable Diffusion
💡ControlNet
💡OpenPose
💡Face Detailer
💡Wildcards
💡Pose Sheet
💡Upscaling
💡MidJourney
💡IP Adapter
💡Denoising
Highlights
The video tutorial demonstrates creating consistent, editable AI characters and backgrounds for various projects using Stable Diffusion 1.5 and SDXL.
A post sheet is introduced, which helps generate multiple views of a character in a single image, available for free download on the creator's Patreon.
Control Net is utilized to generate characters based on the bones depicted in the post sheet, with a recommendation to set the pre-processor to None for Open Pose Control Net.
A step-by-step guide is provided for installing and setting up workflows in ComfyUI, including model acquisition and folder structure.
The process of creating an AI influencer for cheese, a niche market, is showcased with a friendly German character living in the Alps.
Tips are given on how to refine character generation by adding descriptive prompts and adjusting the seed in the sampler for better consistency.
An upscaling technique from 1K to 2K is discussed to improve image quality, particularly for small facial features.
The use of a face detailer to automatically detect and redefine faces in the image for consistency is explained.
A method to save different character poses as separate images is presented, allowing for further customization.
The integration of character expressions using the face detailer with Pixar character prompts for a more realistic look is detailed.
Adjusting the 'dooy strength' to balance the intensity of generated expressions and maintain character likeness is covered.
The final workflow step combines different expressions and upscales them, including a single image of the face.
The potential to train a character's own model using the generated images is mentioned, with a node to save character faces for further use.
The use of Mid Journey's character reference tool to place the character in different locations is explored.
A free workflow for posting characters and integrating them into various backgrounds is introduced.
The importance of matching model settings in the K sampler to the recommended settings for consistency is emphasized.
Techniques for fixing seams and integrating characters into backgrounds using masks and latent noise are discussed.
The ability to change character poses and expressions by adjusting control net inputs and using the Open Pose editor is demonstrated.
The option to deactivate control nets for more freedom in pose generation and to use auto-queue for mass image generation is highlighted.
The video concludes with an invitation to access exclusive files, resources, and join the Discord community through Patreon support.
