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X/Y/Z Plot

by. Haoming

Introduction

X/Y/Z Plot is an extremely useful tool for comparing and evaluating models, prompts, or other settings. You can use it to create a grid of images generated from different configurations, then quickly determine what performs better at a glance. You can find it in the Script dropdown at the bottom of the txt2img and img2img tabs.

How to Use

  • X axis will generate variations horizontally
  • Y axis will generate variations vertically
  • Z axis will generate another XY Grid separately

For each axis, you can choose a type as the variable in the left field, then enter the values to cycle through in the right field, each separated by comma. Some of the types (eg. Checkpoint name) also come with a 📒 button, which when clicked will populate the field with all possible values.

Prompt S/R

Some further explanation for this type

How it Works

It first scans through the prompt to search for the first string in the field, then generates images with said string replaced by each of the other strings in the field.

Use Case - Training Evaluation

If you train a LoRA for multiple epochs, the filenames may come in the format of {filename}-{epoch count}. To easily compare the epochs, add the LoRA syntax to the prompt (eg. <lora:name-000008:0.8>), then you can use Prompt S/R, with the X axis being 08, 12, 16 for the epoch number; and the Y axis being 0.8, 0.6, 0.4 for the weights. The script will then generate a 3x3 grid with LoRAs from different epochs at different weights.

Tip

To have commas within a string in Prompt S/R, surround the string in quotes
(eg. "long hair, blond hair", "short hair, black hair")

Example

  • Prompt: a 4k cinematic photo of a dog
  • X axis: Checkpoint name
  • Y axis: Sampler