Star Guardian Poppy

Description:

This LoRA is dedicated to recreating the vibrant and heroic Star Guardian skin for Poppy from League of Legends.

This is a UNet-only LoRA (network_train_unet_only = true), meaning it was trained exclusively on the visual aspects of the character's design. It does not teach the model a new "concept" of Poppy but instead excels at applying her Star Guardian outfit, hairstyle, and signature hammer over a well-prompted character.

For optimal compatibility, this LoRA was trained on NoobAI XL Vpred 1.0 and works best with v-prediction models.

Usage Instructions

Activation & Prompting

Since the text encoder was not trained, you must describe the character in your prompt. Use the primary trigger word, then add descriptive tags for her appearance and outfit.

• Primary Trigger: sgpoppy

• Essential Character Tags: yordle, blue skin, purple hair, twintails, blue eyes, pointy ears, fang

• Essential Outfit Tags: star guardian uniform, armor, breastplate, skirt, blue gloves, pantyhose, white legwear, kneeboots

• Weapon Tag: hammer

Important: LoRA Weight

This LoRA was trained with an alpha (64) that is double its dimension (32). This makes the LoRA very strong.

• Works plenty fine with a weight of 1.0.

  • Example: <lora:SGPoppy:1.0>

Recommended Settings

• Model: Any SDXL v-prediction model (e.g., NoobAI-XL, Illustrious-XL).

• Sampler: Euler a CFG++

• Steps: 20

• CFG Scale: 1.4-1.7

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Outfit & Style Description

This LoRA accurately reproduces the key elements of Poppy's Star Guardian design:

• The Outfit: Captures her distinct blue, white, and gold magical girl uniform, complete with the star emblem, large bows, and armored gauntlets/boots.

• Character Features: Reliably generates her yordle physique, vibrant blue skin, and signature purple hair styled in large twintails.

• The Starlight Hammer: Excellently reproduces her iconic, oversized golden hammer, maintaining its grand scale in proportion to her small stature.

The style is sharp and illustrative, perfect for creating high-impact character art that reflects Poppy's determined and heroic personality.

Training Details

This LoRA was trained on a focused dataset of 29 images with the following notable parameters:

• Base Model: NoobAI XL Vpred 1.0

• Resolution: 1024x1024 (with bucketing enabled)

• Network Rank (Dimension): 32

• Network Alpha: 64

  • Note: A 2:1 alpha-to-dim ratio was used, amplifying the LoRA's trained effect. This is why lower weights are recommended during inference.

• Training Target: UNet Only

• Optimizer: AdamW8bit

• Learning Rate: 4e-4 (4×10−4)

• LR Scheduler: cosine_with_restarts (5 cycles)

• Advanced Noise Scheduling: An extremely high min_snr_gamma = 80 was used alongside zero_terminal_snr = true, forcing the model to focus intensely on high-level composition and detail.

• Max Training Epochs: 50