Transforming Sketches Into Renderings For Free With ComfyUI and Krea.AI

Filipe Boni
22 Mar 202416:37

TLDRIn this tutorial, Phillippy demonstrates how to transform a simple sketch into a detailed rendering using free software. He begins by using the software 'Kii' to upload the sketch and transform it into a more realistic image, adjusting settings such as the D noise and prompt weight to achieve the desired level of detail. The process involves adding elements like natural light and colors to enhance the image. Once satisfied with the rendering, Phillippy saves the image and uses 'Krea.AI' to further enhance it, providing a more detailed and polished result. Finally, he utilizes 'Pabs' to create a video from the image, showcasing how to add animations and motion to the static rendering. The video can be generated with both free and paid options, with the paid version offering more features and higher quality. Phillippy concludes by encouraging viewers to stay tuned for future classes and updates.


  • 🎨 Use free software to transform sketches into detailed renderings for projects.
  • πŸ’» Install and run Kiii, a software for generating renderings on your computer.
  • πŸ“ˆ Configure settings in the Kiii dashboard, including prompts, key sampler, and negative prompts.
  • πŸ–ΌοΈ Upload your sketch image into Kiii to transform it into a rendering.
  • πŸ”— Connect nodes in the software to create a workflow that processes the image.
  • πŸ” Adjust D noise and prompt weight to refine the rendering and maintain resemblance to the original sketch.
  • 🌞 Add elements like natural light and colors to enhance the rendering.
  • πŸ“± Use Krea.AI to enhance the image further with its 'enhance image' feature.
  • πŸŽ₯ Generate videos from your images using software like Pabs, available on Discord.
  • βš™οΈ Customize your video with animations and motion effects to create a dynamic presentation.
  • πŸ“š Stay tuned for future classes and updates on transforming sketches into renderings and videos.

Q & A

  • What is the main topic of the video?

    -The main topic of the video is transforming sketches into renderings using free software like ComfyUI and Krea.AI.

  • Which software is used to generate the renderings?

    -The software used to generate the renderings is Kil UI (Krea.AI).

  • What is the purpose of the 'prompt' in the rendering process?

    -The 'prompt' is used to guide the AI to generate the desired image, specifying what details to include in the final rendering.

  • How can one enhance the generated image after the initial rendering?

    -One can enhance the generated image by using the 'enhance image' feature in Krea.AI, which improves the details of the image.

  • What is the role of the 'negative prompt' in the rendering process?

    -The 'negative prompt' is used to specify elements that should be avoided in the final rendering, such as text or watermarks.

  • What is the importance of the 'D noise' setting?

    -The 'D noise' setting affects how closely the generated image resembles the original sketch, with lower values resulting in a more faithful representation.

  • How can the generated image be used to create a video?

    -The generated image can be used to create a video with the help of software like Pabs, which allows for adding animations and motion to the image.

  • What is the difference between the free and paid versions of Krea.AI?

    -The free version of Krea.AI allows basic image enhancement, while the paid version offers higher quality enhancements, more control over the process, and the ability to upscale the image without a watermark.

  • How does the video creator suggest finding the best 'D noise' value for an image?

    -The video creator suggests testing different 'D noise' values between 0.4 and 0.6 to find the best balance between detail and resemblance to the original sketch.

  • What is the advantage of using an Nvidia GPU when running Kil UI?

    -An Nvidia GPU can speed up the rendering process as it is optimized for graphics-intensive tasks, but the software can also be run on a CPU if an Nvidia GPU is not available.

  • What is the final step in the process demonstrated in the video?

    -The final step is saving the enhanced image as a PNG file, which can then be used for further applications like creating a video.



🎨 Transforming Sketches into Rendered Projects

In this segment, the presenter, Phillippy, introduces the process of transforming hand-drawn sketches into detailed renders using free software. The software mentioned is 'kii,' which is already installed on the user's system. The presenter guides the audience through the process of uploading a sketch, configuring the software, and using various prompts and settings to generate a detailed image. The focus is on using the software's interface, including checkpoints, prompts, and the key sampler, to refine the image generation process.


πŸ–ΌοΈ Enhancing Realism in Rendered Images

The second paragraph delves into enhancing the realism of the rendered image. The presenter discusses adjusting the 'D noise' value to maintain the integrity of the original sketch while adding details. They also talk about experimenting with different prompt weights to achieve the desired level of detail and color. The presenter suggests adding elements like natural colors, beach walls, and a blue sky to enrich the scene. They also mention the option to use a CPU if an Nvidia GPU is not available and emphasize the importance of adjusting prompts for better results.


πŸ“ˆ Image Enhancement and Video Generation with AI

In this part, the presenter demonstrates how to further enhance the image using a software called 'ca.a' (Kaya AI), which offers both free and paid options for image enhancement. They show the before and after results of the enhancement, highlighting the improved details and natural light. Subsequently, the presenter introduces 'pabs,' a software used to create videos from images. They explain how to use pabs to add animations and motions to the image, such as camera zooms and rotations, to generate an engaging video. The presenter also contrasts the features available in the free and paid versions of pabs.


πŸŽ‰ Finalizing the Project and Future Classes

The final paragraph wraps up the session by showcasing the completed rendered image and video generated from the initial sketch. The presenter expresses satisfaction with the outcome and suggests that further improvements are possible. They save the final image as a PNG file and briefly touch upon the use case of generating presentations for live events. The presenter also teases upcoming classes and encourages the audience to stay tuned for more updates and possibilities in the future.




A sketch is a rough, preliminary drawing that captures the basic idea or composition of a design. In the video, the term 'sketch' refers to the initial artwork created by the user which will be transformed into a more detailed rendering using software. The sketch is the starting point for the entire process showcased in the video.


Rendering is the process of generating an image from a 2D or 3D model by means of computer programs. It provides a detailed and realistic view of the sketch. In the video, the host demonstrates how to use software to convert a simple sketch into a detailed rendering, which is a crucial step for visualizing the final project.


Krea.AI is a software mentioned in the video that is used for enhancing images. It is utilized to improve the quality of the rendered image by adding more details and realism. The software plays a significant role in the video as it helps to achieve a higher level of detail in the final output.


Software refers to programs or applications that are used to perform specific tasks on a computer. In the context of the video, the host uses various software tools, such as 'kiii' and 'Krea.AI', to transform a sketch into a detailed rendering and then further enhance it.


GPU stands for Graphics Processing Unit. It is a specialized electronic circuit designed to handle the complex mathematical and geometric calculations required for rendering images, videos, and animations. In the video, the host chooses to use an Nvidia GPU to speed up the rendering process.


In the context of the video, a checkpoint refers to a saved state or configuration in the software that can be loaded to continue or restart a process. The host mentions using checkpoints to add or change settings in the rendering software.


A prompt is an input or instruction given to a software program, which in this case, guides the AI in generating the desired output. The host uses prompts to direct the software on how to transform the sketch into a rendering with specific characteristics.


Resolution refers to the clarity or detail of an image, typically measured by the number of pixels in a given area. In the video, the host discusses setting the resolution for the final rendered image to match the desired output quality.

πŸ’‘Enhance Image

Enhance Image is a feature within the Krea.AI software that improves the quality and detail of an image. The host uses this feature to add more details to the rendered image, making it more realistic and visually appealing.


Discord is a communication platform that the host mentions in relation to using a software called 'pabs' for generating videos. It is used as a way to access and utilize certain tools or services that are integrated with the platform.

πŸ’‘Video Generation

Video Generation is the process of creating a video, which in the video script, is done using the 'pabs' software. The host demonstrates how to animate and add motion to the rendered image to create an engaging video, which is an extension of the image rendering process.


The video demonstrates how to transform a sketch into a detailed rendering using free software.

Two free software tools are used: ComfyUI and Krea.AI.

Kii software is used to generate renderings from a sketch.

The process includes using a GPU for faster processing.

The dashboard of Kii allows for configuration of rendering settings.

Checkpoints, prompts, and negative prompts are utilized to refine the image.

The image resolution can be set, but for sketches, a random prompt image is generated.

The user can upload their sketch and connect nodes to generate the prompt.

Adjusting the D noise and prompt weight can improve the resemblance to the original sketch.

Different prompts can be tested to find the best resolution for the image.

Enhancements such as natural colors, beach walls, and a blue sky can be added to the prompt.

Krea.AI is used to enhance the image with more details.

The free option in Krea.AI provides satisfactory results for most users.

Pabs software can be used to create a video from the rendered image.

Discord integration allows for easy sharing and collaboration on generated content.

The paid version of Pabs offers more features, such as additional seconds and upscaling.

The process from sketch to rendering and video generation is showcased in the video.

The presenter provides tips for achieving the best results with the software tools.

Updates and new classes on the topic will be provided in the future.