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Simulating an Entire Car Engine (yes, it makes noise)

AngeTheGreat · 2.1M views · 2022-08-02 · 12:04

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Overview

AngeTheGreat describes building a physically realistic internal combustion engine simulator in C++, drawing on fluid dynamics, physics and chemistry. It generates procedural audio for engines such as a V8.

On Hacker News

HN points to it as a standout example of physics-based sound synthesis and engine simulation.

Recommended by 4 HN people across 4 months · HN mentions 2023–2025

Topics

Cars, EVs & motorcyclesGame programming & enginesComputer graphics & rendering
Search by tags
engine simulatorprocedural audiophysics simulationc++game development

What people said

mhink · 2025-07 · Strong recommendation

> Interestingly, while the engine has the most moving parts in real life, in code, it's the simplest piece of the entire car simulation. Because at its core, the engine is just a torque calculator. It's concerned with producing a single output: rotational torque, from a set of inputs. It is essentially a blackbox. This just reminded me of AngeTheGreat's incredible video series showing his engine simulator- absolutely worth checking out, considering it's optimized enough to run in real-time! The fact that he's simulating it well enough to generate realistic sound is absolutely mind-blowing. [VIDEO]

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modeless · 2025-05 · Recommendation

Love physics based audio! Using the GPU is a great idea. Another physical audio simulation I like is the engine sound simulator made by AngeTheGreat: [VIDEO]

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pengaru · 2023-12 · Recommendation

You might find this software interesting: [VIDEO] I don't know if any of the state of the art flight/driving simulators are doing this kind of engine noise synthesis already, but they should be.

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Sources

Video by AngeTheGreat, played through YouTube.

Data and selection notes

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