How to Build Fortnite-Style Game Assets with Trellis 3D API via PiAPI

Fortnite’s cartoony yet high-fidelity assets have become the gold standard in modern game design. But creating those vibrant characters, weapons, and environments is notoriously expensive and time-consuming. Studios often spend weeks modeling, texturing, and iterating just to get a single asset ready for gameplay.

PiAPI put the model to the test and generated Fortnite-inspired game assets with our Midjourney API and Trellis 3D API.

Cartoon-style pastel-colored 3D house with blue roof, orange and pink walls, designed in Fortnite aesthetic.
Fortnite-style house game asset
Colorful stylized 3D assault rifle in pink, orange, and teal, designed in a Fortnite-inspired game art style.
Fortnite-inspired weapon asset
Stylized 3D pirate character wearing a colorful coat, hat, and boots, rendered in Fortnite’s cartoony high-fidelity style.
Fortnite-style pirate character asset

What is the Trellis 3D API?

Trellis is a Microsoft-backed model designed for 3D asset creation. Instead of relying on slow, traditional modeling pipelines, we provide Trellis as an API, making it accessible for direct integration into developer workflows.

With our Trellis 3D API, you get:

1. Fast generation: Convert text or image inputs into structured 3D assets within minutes;

2. Developer-friendly: Easy API integration for automated pipelines;

3. Scalable: Programmatically generate batches of assets to meet large project demands; and

4. Engine-ready: Outputs are optimized for immediate use in leading 3D engines and design environments.

The real value lies in its reliability and scalability. Developers can move beyond experimentation and build consistent, production-ready 3D pipelines.

Trellis API with PiAPI: Pricing Plan

With Trellis 3D, that process gets dramatically faster. Developers can now generate, refine, and deploy game assets in hours instead of weeks. As an image-to-3D model, we make it possible to scale your workflow without scaling costs. In fact, we take this even further: one subscription unlocks access to Trellis and multiple AI models under a single, developer-friendly API.

Register for an account, then jump into the Playground and test prompts immediately with our FREE Playground trial package. With PiAPI, accessing over 20 AI models is straightforward and predictable. No hidden token costs, no complex billing. Pay only for what you generate.

Our Free Tier Access allows you to experiment with with basic APIs and access our Playground, while subscribing to Creator and Pro plans gives you greater benefits such as FREE credits monthly, additional API access and priority support.

Check out our pricing plans to see which fits your needs best.

Why Choose PiAPI?

One of the biggest challenges with 3D content creation is juggling multiple tools. That’s where we stand out.

With a single subscription, you get access to multiple AI models — including Trellis and Midjourney — in one place. This means you can:

  1. 1. Generate concept art using PiAPI's image models such as Midjourney via the PiAPI Playground.
  2. 2. Transform those images into fully-formed 3D models using the Trellis 3D Playground and run the API when you're ready.
  3. 3. Manage everything with unified billing and consistent developer-friendly APIs.

Instead of switching platforms and paying for separate subscriptions, we give you the ease to handle concept-to-3D output all in one pipeline.

Step-by-Step: Creating Fortnite-Style Assets

Here’s a simple guide you can follow to replicate a Fortnite-style asset pipeline with PiAPI:

1. Concept Creation

Use Midjourney via PiAPI Playground to create stylized concept art for characters, weapons, or environments to generate an image if you don't have a sketch.

2. 3D Generation

Feed your concept images into the Trellis 3D API, which generates structured, game-ready 3D models.

3. Deploy in Gameplay

Export models for seamless use in your preferred game engine.

In just a few steps, you can turn an idea into a playable Fortnite-style asset — without weeks of manual modeling.

Benefits for Developers

1. Speed

Reduce asset creation time from weeks to hours.

2. Cost

One PiAPI subscription unlocks access to multiple AI models.

3. Flexibility

Combine Midjourney + Trellis for a full creative-to-3D pipeline.

4. Scalability

Batch-generate assets via API for faster iteration and prototyping.

Conclusion: Generate Game Assets Faster and Smarter

The Trellis 3D API makes building Fortnite-style game assets more efficient and scalable. And with PiAPI, you get all-in-one access to over 20 AI models, enabling you to go from concept to game-ready assets without leaving one ecosystem. Start building with Trellis 3D and unlock the fastest path to creating your own Fortnite-style assets.

Sign up for PiAPI to unlock access to over 20 AI models including Midjourney, Kling, GPT-4o, and more.

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