ComfyUI Node: Prompts

Prompts:

The Prompts node is designed to handle and process text prompts for AI models, particularly those utilizing CLIP (Contrastive Language-Image Pre-Training) technology. This node allows you to input both positive and negative text prompts, which are then tokenized and encoded using a CLIP model if provided. The primary purpose of this node is to generate encoded representations of the text prompts, which can be used in various AI art generation tasks to influence the output based on the given textual descriptions. By leveraging the capabilities of CLIP, the Prompts node ensures that the text prompts are effectively translated into a format that the AI model can understand and utilize, enhancing the quality and relevance of the generated art.

Prompts Input Parameters:

Positive

The Positive parameter is a text input that represents the positive prompt you want to provide to the AI model. This prompt should describe the desired characteristics or elements you want to see in the generated output. For example, you might input "a beautiful sunset over the ocean" to guide the AI towards creating an image with those features. There are no strict minimum or maximum values for this parameter, but it should be a coherent and descriptive text.

Negative

The Negative parameter is a text input that represents the negative prompt, which describes the elements or characteristics you want to avoid in the generated output. For instance, you might input "no people" if you want to ensure that the generated image does not include any human figures. Similar to the Positive parameter, there are no strict minimum or maximum values, but the text should be clear and descriptive.

clip

The clip parameter is an optional input that accepts a CLIP model instance. If provided, the node will use this model to tokenize and encode the positive and negative prompts. The CLIP model helps in converting the text prompts into encoded representations that the AI model can use. If this parameter is not provided, the node will return the raw text prompts without encoding.

Prompts Output Parameters:

Encoded Positive Prompt

The Encoded Positive Prompt is the output that contains the encoded representation of the positive text prompt. This encoded data is generated using the provided CLIP model and includes both the tokenized text and the pooled output, which can be used by the AI model to influence the generated art based on the positive prompt.

Encoded Negative Prompt

The Encoded Negative Prompt is the output that contains the encoded representation of the negative text prompt. Similar to the positive prompt, this encoded data is generated using the provided CLIP model and includes both the tokenized text and the pooled output, helping the AI model to avoid the characteristics described in the negative prompt.

clip

The clip output is the same CLIP model instance that was provided as an input. This is returned to maintain consistency and allow for further use in subsequent nodes or processes.

Positive

The Positive output is the raw positive text prompt that was provided as an input. This is returned for reference or further processing if needed.

Negative

The Negative output is the raw negative text prompt that was provided as an input. This is returned for reference or further processing if needed.

Prompts Usage Tips:

• Ensure that your positive and negative prompts are clear and descriptive to achieve the best results from the AI model.
• Use the clip parameter to provide a CLIP model instance for encoding the prompts, as this will enhance the model's understanding and utilization of the text prompts.
• Experiment with different combinations of positive and negative prompts to fine-tune the output and achieve the desired artistic effect.

Prompts Common Errors and Solutions:

Cannot execute because a node is missing the class_type property.

• Explanation: This error occurs when a node in the prompt does not have the class_type property defined.
• Solution: Ensure that all nodes in your prompt have the class_type property correctly set.

Cannot execute because node <class_type> does not exist.

• Explanation: This error indicates that a node with the specified class_type does not exist in the system.
• Solution: Verify that the class_type for each node in your prompt is correct and that the corresponding node class is available in the system.

Prompt has no outputs

• Explanation: This error occurs when the prompt does not have any output nodes defined.
• Solution: Ensure that your prompt includes at least one output node to generate results.

Failed to validate prompt for output <output_id>

• Explanation: This error indicates that the prompt validation failed for a specific output.
• Solution: Check the prompt configuration and ensure that all required parameters and nodes are correctly defined and connected.