ComfyUI Node: VACE Prompt Combine

VACE Prompt Combine:

The VACEPromptCombine node is a powerful tool designed to facilitate the combination of prompts for video generation tasks. It allows you to seamlessly integrate both positive and negative prompts, which are essential for guiding the AI in creating desired visual outputs. This node is particularly beneficial for artists looking to create complex animations or videos, as it provides the ability to specify the number of frames and the initial crossfade frames, ensuring smooth transitions between different visual elements. By offering options for refining the initial frames and overriding models, VACEPromptCombine enhances the flexibility and control you have over the creative process, making it an indispensable component in the SuperUltimateVaceTools suite.

VACE Prompt Combine Input Parameters:

positive_prompt

The positive_prompt parameter is a string input that allows you to specify the desired elements or themes you want to emphasize in the generated video. It supports multiline text, enabling you to provide detailed instructions or descriptions. This parameter plays a crucial role in shaping the visual output by guiding the AI towards the intended artistic direction. The default value is an empty string.

negative_prompt

The negative_prompt parameter is a string input used to define elements or themes you wish to avoid in the generated video. Like the positive prompt, it supports multiline text, allowing for comprehensive descriptions. This parameter helps in refining the output by steering the AI away from unwanted visual elements. The default value is an empty string.

num_frame

The num_frame parameter is an integer that determines the total number of frames in the generated video. It directly impacts the duration and smoothness of the animation. The parameter accepts values ranging from 5 to 65535, with a default value of 81. Adjusting this parameter allows you to control the length and complexity of the video.

init_crossfade_frame

The init_crossfade_frame parameter is an integer that specifies the number of frames used for crossfading at the beginning of the video. This helps in creating smooth transitions between different visual elements. The parameter accepts values from 0 to 65535, with a default value of 3. It is important to ensure that this value is not greater than num_frame, as it would result in an error.

refine_init

The refine_init parameter is a float that allows you to refine the initial frames of the video. This parameter can be used to adjust the initial appearance or quality of the video, providing more control over the final output. The default value is 0.0, and it can be adjusted in increments of 0.01.

model_override

The model_override parameter is optional and allows you to specify a different model for the video generation process. This can be useful if you want to experiment with different styles or techniques. The parameter accepts a model input and provides a tooltip for guidance.

ref_image

The ref_image parameter is optional and allows you to provide a reference image to guide the video generation process. This can be particularly useful for maintaining consistency with a specific visual style or theme.

custom_refine

The custom_refine parameter is optional and accepts a list of refinements to be applied to the video. This allows for further customization and fine-tuning of the output, enabling you to achieve the desired artistic effect.

previous_prompt

The previous_prompt parameter is optional and allows you to incorporate prompts from previous nodes. This can be useful for maintaining continuity or building upon previous work.

VACE Prompt Combine Output Parameters:

vace_prompt_list

The vace_prompt_list is the output parameter that provides a list of combined prompts. This list is essential for the video generation process, as it contains all the necessary instructions and settings for creating the desired visual output. The list includes details such as the number of frames, crossfade settings, and any custom refinements, ensuring that the video is generated according to your specifications.

VACE Prompt Combine Usage Tips:

• Ensure that the init_crossfade_frame is set to a value less than or equal to num_frame to avoid errors and ensure smooth transitions.
• Utilize the model_override parameter to experiment with different styles and achieve unique artistic effects.
• Use the ref_image parameter to maintain consistency with a specific visual style or theme, especially when working on a series of videos.

VACE Prompt Combine Common Errors and Solutions:

init_crossfade_frame can not be larger than num_frame

• Explanation: This error occurs when the init_crossfade_frame value is set higher than the num_frame value, which is not allowed as it would result in an invalid configuration for crossfading.
• Solution: Adjust the init_crossfade_frame value to be less than or equal to the num_frame value to resolve this issue and ensure proper video generation.