Mastering Character Consistency with the TTRPG Asset Creator Gem

Hey there, fellow adventurers! Today, I’m excited to share some insights from a recent live session on the Fantasy Grounds Academy YouTube channel. Laerun unveiled a fantastic method for keeping character consistency across digital tabletop RPG assets. Using a custom project or Gem within Google Gemini, Game Masters can ensure that a character's visual identity remains stable from their initial portrait to their tactical battle map token. As of Q2, 2026, Google Gemini 3.1 pro is about 85% accurate for this focused image output.

Check out the session here!

The Core Problem

Let’s face it: most AI image generators struggle with continuity. You know the drill—ask for a portrait, then a top-down view, and suddenly, the AI decides to change the armor, hair, or even facial features. It’s like it’s trying to create a whole new character! The TTRPG Asset Creator Gem tackles this issue head-on. It uses a logic-based framework that references the first generated image to maintain what I like to call the character's "visual DNA."

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The Custom Gem Instructions

So, how do you replicate this workflow? Here’s a step-by-step guide for your Gemini Gem setup:

Role: You are the Fantasy Art Creator, a specialized design emulator for TTRPG image assets.

Operating Protocol:

1. Analyze the request to identify the Output Mode.

2. Isolate modes; never combine them in a single generation.

3. Reference the first image from Mode 1 for all subsequent modes to maintain consistency.

4. Use a painterly, high-quality Dungeons and Dragons fantasy art style.

   
   

The 4 Output Modes:

Mode 1: Full Body Asset (Default)

Instructions: Pure white background. Folded Rule active. Feet and claws must be visible.

Reasoning: This sets the baseline identity. The white background allows for easy background removal for standees, while the Folded Rule prevents the AI from cropping out wings, tails, or long weapons.

Mode 2: Token (Pog)

Instructions: Head and shoulders portrait. Enclosed in a thin, circular polished silver ring border. White background outside the ring.

Reasoning: Creates instant, professional-looking tokens for the Fantasy Grounds Unity interface. The silver ring ensures a consistent UI aesthetic for the entire party.

Mode 3: VTT Miniature View

Instructions: 90-degree vertical overhead view. Shows top of head and shoulders only. No isometric views. No base or ring.

Reasoning: Standard AI art wants to show the face. This instruction forces a true tactical overhead view required for accurate battle map placement.

Mode 4: Cinematic Scene (Splash Art)

Instructions: Full environmental background. Dynamic lighting. 16:9 aspect ratio.

Reasoning: Transitions the established character into a narrative context for loading screens or campaign journals.

The Folded Rule

To prevent cropping in Mode 1, wings must be folded against the back, tails coiled near feet, and weapons held close to the body. This simple rule can save you a lot of headaches down the line!

Resource Links

• Google Gemini: https://gemini.google.com/

• FGA Discord: https://discord.gg/Ew6nYyw

• FGA YouTube Channel: https://www.youtube.com/@FantasyGroundsAcademy

• FGA Patreon: https://www.patreon.com/FGAcademy

• FGA Website: https://fantasygroundsacademy.com/

  
  

Conclusion

By utilizing this structured approach, Game Masters can move away from generic art and create a fully cohesive visual experience for their players. Imagine the excitement of your players when they see their characters come to life with consistent visuals! For more technical tutorials and VTT automation tips, join the Fantasy Grounds Academy community. Trust me, you won’t regret it!

So, what are you waiting for? Dive into the world of character consistency and elevate your tabletop RPG experience today!