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 and Trellis 3D APIs.

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, PiAPI makes it possible to scale your workflow without scaling costs.

In fact, PiAPI takes this even further: one subscription unlocks access to Trellis and multiple AI models under a single, developer-friendly API. No juggling tools, no complex setups—just a streamlined pipeline that goes from concept art to production-ready 3D assets in a few steps.

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 Trellis 3D API via PiAPI, 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; and4. Engine-ready: Outputs are optimized for immediate use in leading 3D engines and design environments.The real value of Trellis lies in its reliability and scalability. By running through PiAPI, developers can move beyond experimentation and build consistent, production-ready 3D pipelines.

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. 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. 2. 3D Generation: Feed your concept images into the Trellis 3D API, which generates structured, game-ready 3D models.
3. 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. 1. Speed: Reduce asset creation time from weeks to hours.
2. 2. Cost: One PiAPI subscription unlocks access to multiple AI models.
3. 3. Flexibility: Combine Midjourney + Trellis for a full creative-to-3D pipeline.
4. 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.

Subscribe to PiAPI today!