Flightmare: A Flexible Quadrotor Simulator
Yunlong Song, Selim Naji, Elia Kaufmann, Antonio Loquercio, Davide, Scaramuzza

TL;DR
Flightmare is a highly flexible and fast quadrotor simulation platform built on Unity, supporting multi-modal sensors, reinforcement learning, and virtual reality integration, enabling diverse robotic research applications.
Contribution
It introduces a decoupled rendering and physics engine architecture that achieves high speed and flexibility for quadrotor simulation tasks.
Findings
Achieves rendering speeds up to 230 Hz and physics simulation up to 200,000 Hz.
Supports multi-modal sensors including 3D point-cloud extraction.
Enables reinforcement learning and virtual reality integration for robotic experiments.
Abstract
State-of-the-art quadrotor simulators have a rigid and highly-specialized structure: either are they really fast, physically accurate, or photo-realistic. In this work, we propose a novel quadrotor simulator: Flightmare. Flightmare is composed of two main components: a configurable rendering engine built on Unity and a flexible physics engine for dynamics simulation. Those two components are totally decoupled and can run independently of each other. This makes our simulator extremely fast: rendering achieves speeds of up to 230 Hz, while physics simulation of up to 200,000 Hz on a laptop. In addition, Flightmare comes with several desirable features: (i) a large multi-modal sensor suite, including an interface to extract the 3D point-cloud of the scene; (ii) an API for reinforcement learning which can simulate hundreds of quadrotors in parallel; and (iii) integration with a…
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Taxonomy
TopicsRobotic Path Planning Algorithms · Robotics and Sensor-Based Localization · Advanced Vision and Imaging
