Fluorite, Toyota's Upcoming Brand New Game Engine in Flutter

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Sorry for any inaccuracies, but from the talk, this is what I understand:

This is initially mainly targeted for embedded devices, specifically mentioned Raspberry Pi 5.

Key Features:

  • Integrated with Flutter for UI/UX
  • Uses Google Filament as the 3D renderer
  • JoltPhysics integration (on the roadmap)
  • Entity Component System (ECS) architecture
  • SDL3 Dart API
  • Fully open-source
  • Cross-platform support

Why Not Other Engines?

  • Unity/Unreal: High licensing fees and super resource-heavy.
  • Godot: Long startup times on embedded devices, also resource-intensive.
  • Impeller/Flutter_GPU: Still unusable on Linux.

Tech Highlights:

  • Specifically targeted for embedded hardware/platforms like Raspberry Pi 5.
  • SDL3 embedder for Flutter.
  • Filament 3D rendering engine for high-quality visuals.
  • ECS in action: Example of a bouncing ball sample fully written in Dart.
  • Flutter widgets controlling 3D scenes seamlessly.
  • Console-grade 3D rendering capabilities. Not sure what this means tbh but sounds cool.
  • Realtime hot reloading for faster iteration.
  • Blender compatibility out of the box.
  • Supports GLTF, GLB, KTX/HDR formats.
  • Shaders programmed with a superset of GLSL.
  • Full cross-platform: Embedded (Yocto/Linux), iOS, Android, Windows, macOS, and even consoles (I don’t really understand this part in the talk, whether it’s already supported, or theoretically it can already be supported since the underlying technology is SDL3)
  • SDL3 API bindings in Dart to be released.
  • Fully GPU-accelerated with Vulkan driving the 3D renderer across platforms.
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Grandiose! thanks for the report

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Why are they doing a game engine that’s compatible with everything? From what I can tell they doing car stuff. For games in the embedded systems in their cars?

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I think you are missing the point, Like Flutter, develop once support all.

Yes they are doing cars, what if they want a mobile app to support your car, start from scratch?

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It’s definitely the right approach.

I was just surprised that it is being done by a car company. I’m curious, is this a new thing to play 3d games in your car in general? Or this is just for some nice visualisations?

I don’t know anything about the app ecosystem for cars. I just assumed they just run some android apps if anything.

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Watch the talk of Fosdem 2026, link above, you will see a bit of their vision.

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Thanks a lot for the information

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Thanks for sharing! I only skimmed the presentation so far but it looks really powerful. Here’s the link to the project itself:

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Oh cool! It’s the talk I gave, tbh I should’ve posted it myself :blush::sparkles:

Thanks @damywise !

Some corrections:
Like any large company, there’s a lot of projects that are more/less related to mainstream products, especially in the open-source department.
Fluorite, like any other 3D engine, can have a broad spectrum of applications in any industry!
Think entertainment, travel, etc.

To address some concerns about performance: anything performance-critical is implemented in C++, and highly-optimized. The architecture is data-driven
The Dart/Flutter API, exposed for scripting, only exposes this ECS data, meaning any underlying logic is still executed in C++ (of course, except for any user-side scripting). We’re making heavy use of FFI and direct memory pointers (dart:ffi types) to eliminate any overhead.

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Fantastic, @kerberjg! Just checking: the code isn’t open source yet, is it? From what I understand, it’s going to be?

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That’s the plan! As a lot of people have correctly guessed, there’s a lot of work that goes into open-sourcing a project of this size, and we’re hard at work!

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