Multicylinder Engine Simulation - Engine Simulator Devlog 6
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- čas přidán 17. 05. 2024
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In this video, I continue working on Engine Simulator, pushing the fluid simulation to its performance limits with 4 cylinder engines.
Download the OG Engine Simulator for free!
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Timeline
00:00 - Intro and Master Mechanics
00:23 - Brilliant [Sponsored Segment]
01:12 - Setting Up the Simulation
02:31 - Performance Issues
06:14 - Optimizations
09:57 - Ange Preemptively Addresses the Haterz
10:24 - Old Engine Simulator Reference Audio
11:12 - New Engine Simulator Hayabusa
12:17 - What's the big deal?
14:51 - Exhaust Customization Demonstration
17:05 - Unequal Length Headers
17:31 - gasoline is not for drinking
18:12 - Low Quality Demo
18:50 - Wal-Mart Parking Lot Simulation
19:37 - Conclusions
#physics #simulation #gamedev
FTC Disclaimer: This video was sponsored by Brilliant.
Thanks for watching! - Zábava
Thanks for watching guys.
Learning a little each day using Brilliant will help you avoid becoming the guy in the last clip. To try everything Brilliant has to offer-free-for a full 30 days, visit brilliant.org/AngeTheGreat . You’ll also get 20% off an annual premium subscription.
car go speed
i'm gonna put a 3080 in my pentium 2 and try to run this
Is your simulation software able to run a Helmholtz resonator? (I assume it can't yet do so, since you mentioned it can't do splits yet.)
Some of the videos in your playlist are not correctly arranged in chronological order. For example, Devlog #4 comes before Devlog #3.
@@AmaroqStarwind I'll fix it, thanks for letting me know
the sound at 15:46 is absolutely insane
how do you reply before the video even releases??
Litrally it turns into V8 (actully)
@@SirLaser601 pamtreon :3
@@expired_esoup pamtreon? yes. pamtreon
@@Naszdavidrealchannel if you mess with the exhaust piping in your car and separate the tubes for each cylinder you can make it sound amazing. this simulation shoes why things like a Bugatti spend so much time and money on that
Engine go vroom vroom am I right 😁
Yes
Very vroom vroom
Real (fake)
Yes. I agree.
Sometimes engine go brap brap
that wobble sounds perfectly reasonable and realistic, it's probably a bad exhaust design and not a simulation issue
For sure! Older Japanese bikes with indivudual pipes for each cylinder do exactly the same thing! I actually LOVE it when they sound like that.
CBX 1000 does it as well
It honestly makes the simulator more impressive to me because it can take those sort of design flaws into consideration and accurately reproduce them
I wonder how much of the actual exhaust system behaviour could have been predicted at that time during the design phase. It sounds like the beating between the pipe resonance frequency and the actual exhaust gas pulses might affect the engine by periodically aiding or impairing the scavenging (just a wild guess). Aside from reducing the Q of the pipe to "spread" the resonance, could this be controlled somehow? Perhaps mixing in the pressure wave from another cylinder is enough?
I was going to comment on this as well, I was especially impressed because that is a sound I’ve not heard in a long time.
This makes me want to spend money I don’t have just to access the patron content. (Why I stick to stream.)
i noticed something, some race cars actually had similar shapped exhausts and they made the same wobble sound, especially decelerating... for example lancia 037 if you listen to recordings of it youll recognise the similar sound
19:05 average civic enjoyer
Sounds just like a straight piped civic
Fart can simulator. The dream is real.
Hell yeah, man's been cooking.
FOR REALLL
Who let him cook 🗣
@@blue_mate_six5639 who lot him cook ama raihgt
Holyyyyy the pull at 15:46 gave me chills
Bro samee
The overrun was the most surprising part to me, as that's usually the part of an engine's sound that games never get right.
The downshifts are soo good🤤
insanely good
@@zenkoz3158I guess BeamNG can ask for the code now lol
17:41 POV: You lost GPS acces and went too far off into the texan countryside when you hear a tuned tracker from behind start to overtake you lmao
Initial D: Dual Corn-Row Drifting
tractor
Ah yes, a tuned Geo Tracker.
The audio at 15:50 literally gave me goosebumps. This is the future of racing video games, sim and arcade. You deserve millions for this masterpiece of coding.
You've done it, minus a few tweaks you said yourself you want to do, and with another head or two on the project in the future, you are well on your way to making some SERIOUS cash renting this software to big corporations for both fluid simulation purposes and game dev.
You are brilliant.
license*
thats why beamng supports him as they do want to implement this idea into their simulation
@LoserSnoozer beam is already cpu heavy now imagine with this implemented youre gonna need a 10950x3d or something
A simulator this complex would never make it into a racing game, you'd need a core i12 69420k to run this and the already intensive game at the same time
@@theairaccumulator7144 That would depend on if the engine sim could be off loaded to some spare threads, most games still aren't using. I imagine most interaction with the sim once its set up is very little data (fuel + air in, and some resistance on the main shaft and then power + audio out), with audio likely being the overwhelming majority of cross talking.
15:45 Jesus christ this sound is insane! I think I just had a eargasm
And it's not even a V10 or a V12 or a W8 ect
Sounded like Honda VTEC but with propper exhaust, instead of that fart can one.
@@poklianon8453 At that point imma go wild I think
Same here! Oh yeah, he definitely gonna make us wait for this one!
I was one of the people who was a little disappointed at the single cylinder sound. This completely obliterated any concerns I had back then.
Honestly this already sounds absolutely amazing, especially the comparison with the unprocessed sound from ES2D shows how far this project has come.
This completely restored my faith and I will worship at the altar of Tubular until this gets released!
It really is some amazing work and a huge leap from before.
This is one of those things that, if you know what's actually going on, feels criminally oversimplified as a model. It never had any right to sound remotely plausible at all. But as more fidelity gets added over time, it'll get closer and closer, until at some point it becomes indistinguishable from recorded sounds of the real thing.
I wouldn't be surprised if at some stage this becomes mature enough to be picked up by the engineering teams working on real engines as a first pass to weed out the silliest ideas before any real CFD gets done.
I legitimately predict this will in some way shape or form find its way into almost every video game with vehicles in the near future
You bet. BeamNG being one of the top patreons of this channel and subsequently of the engine sound project might have given us a subtle hint. If BeamNG doesn't have first dibs on that I would be surprised.
I predict luxury electric cars will get it soon, followed by all electric cars on a long enough timeline, to make up for a lack of engine sounds.
Those companies have huge amounts of cash to throw at something like this and clearly want it given how common and tragically forced fake engine noise is already.
Even current gasoline cars like the BRZ have garbage fake engine noise from the factory
@@komodoensis-rex Smart - that'd bring in some goooooood bank for Ange
Arma reforger rally
Eh. Idk.
Simulating an engine on this level of detail uses way more resources than whats necessary just to properly emulate the sound of an engine.
Maybe car sandbox games or mechanic games, but certainly not every game in the near future.
You need a decent rig just to run this simulation. Just imagine what that would cost if you have multiple cars running the same simulation.
oh dude, the audio is sounding so awesome now! Your progress feels hard earned, and is showing fantastic results
Thanks, I'm pretty excited to see what you make with it 🙏
@@AngeTheGreat I'm excited too :)
19:20 actually sounds like my miata with the muffler delete
Ah, so YOU'RE my neighbor.
Some of us are trying to sleep, Todd, and nobody finds your car impressive no matter how loud it is.
@@Deathmonkey7I find it impressive. leave my homie todd alone 😠
Stop it, get some help
🤣
Dont stop it, dont get help. Get more gas
17:43 straight up sounds like a tractor to me
The tailpape sounds too wide... Otherwise you are right
sounds like me after taco bell
I'm just waiting for the diesel engine
Brown sound
to me, it just sounds like a supercar, semi, and tractor combined, which is kinda what the exhaust is
The fact that this is absolutely pure output of the simulation and that it sounds so real is astonishing
The old simulator sounds like an electric toy in comparison, whereas if you close your eyes, you're absolutely riding that bike with the new simulator. Very well done.
the walmart parking lot is hilarious i didnt expect that
But I can hear and almost see the fartcan civic
literally laughed out loud FOUR times with the degenerate engine creations, abducted by aliens, core 2 duo seek help, and 3am Wal-Mart parking lot comments
19:07 the groan tubemobile approaches
The brapmobile
So many ricered fucking cars sound like this, I simply cannot understand how someone would want to ruin their car like that lol
Everyone is saying this, and i'll say it again, the sound at 15:46 is CRAZY. I cant wait for more updates, this is looking incredible.
If I'm not mistaken, the wobbling you spoke about at 15:46 is a result of exhaust air resonating in the system. I think that sound happens irl too with some exhaust systems. You'll of course want to check and verify but if it is because of a physical property and not an issue with the sim, it means you're doing very good with the exhaust side of the simulation
I haven't heard of this phenomenon before, but I know in my NA 2.0l focus, there's a noticeable shift in tone between 3-4k rpm and it changes in almost exactly the same way as the simulation. Sounds throatier, almost like there's a lower octave that creeps in and out as you go through the rpms. Again not sure of the mechanics of it, but it seems the simulation matches reality.
@@themonsterodub I'm not entirely sure if that is exactly the case either. Going off of memory, when the air is being compressed by the piston going up in the exhaust stroke (this increases the pressure in the exhaust) there's a return shockwave that can constructively interfere with the exhaust air that is being expelled. I am curious if that is indeed how it works but I wouldn't be surprised if it was some other mechanism
@@themonsterodub In that part of the simulation he's using 4 individual pipes, in a real car the individual header tubes would link together somewhere in order to help pull the exhaust gasses along using scavenging. This also somewhat reduces audible resonance, but if you listen to single cylinder engines or v-twins with 2 exhaust pipes you will sometimes get bizarre resonance out the exhaust.
The VQ35 displays this behavior on quite a few exhaust setups. I hear it on my own 350z.
ES3D sounds so much better than 2D, I cannot wait until I can play with this
I can't wait to see what engine simulator 4D sound like
@@komodoensis-rexyour screen blows exhaust gases in your face
2D sounds like good video game sound design, 3D sounds like a real recording from real life.
15:50 hearing that wind up and gear up is just magical to me - keep it going man
The trick to having multiple things operating on a single state is to double-buffer it so that CPU is reading from previous frame's output, and GPU is rendering with it, while CPU (or whatever device is performing the simulation step) outputs the simulation increment to a back buffer. Then you swap the buffers' roles. I'm sure you're well aware of double buffering, but sometimes we forget things!
my jaw just dropped at around 16:00 in. I'm not even into cars and I was just amazed
The smile I had on my face after hearing the acceleration through the gears and that growl at 15:48
Excited for the future where we can test and hear the differences in exhaust layout for different engines.
Imagine being able to find a good sounding exhaust for the S55 by building the engine and exhaust in this simulator and figuring out what makes it work digitally first
16:11 the resonance is a real thing, its good that its simulated. the reason its so prevelant is because usually resonance is a lot tougher when there are multiple cylinders going into one exhaust (im pretty sure at least)
either way, it sounds very very good!!!!
That kind of resonance is usually cancelled-out by exhaust mergers, if it exists at all. There are NVH factors in real vehicles, but the one in the sim sounds a bit odd.
Jaw dropping results. Looking very much forward for turbos to join the party. Keep being great, Ange!
Ange, seriously dude.
Every single time you come out with something that blows my mind even more. your creation gives me GENUINE goosebumps with how good it sounds.
But not only the quality of the audio, the visuals and intricacies you put into your work are stunning and jaw dropping. PLEASE DONT STOP!
No lie, every time you demonstrate a new type of motor layout and you get on the gas, banging through the gears, it makes me shiver.
Its amazing what youve acomplished.
Yoo that's totally Tubular
It's a night and day difference! Sounds amazing!
I had no idea anyone complained about the new version sounding less realistic, and I'm giggling now because OF COURSE it initially sounded less realistic, it was really early in development. It's STILL really early but SO GOOD.
The non processed comparison of OG vs current iteration ES is absolutely wild. What a staggering amount of process. Not to mention, it's still a WIP.
I can't wait to hear the final version
how could have people said that his was a worse upgrade, like bruh this new hayabusa engine that uses fluid dynamics to make sound is so much better sounding. in this demo stage of the new engine simulator seems very damn good already omo
that "wobble" is actually very realistic as some engines do that at high rpms under engine load (accelerating) I was chocked when I heard that and actually sounds a lot like my real bike at those rpm, Amazing job 👍
edit: while looking at the video again, the wobble appears when the presure in the intake valve increases, due to the high rpms/load ratio, some vehicle's get rid of that with some exaust desing but definetly this is prof that your simulator works beautifully
I hope this method becomes the industry standard. Engine sound is honestly one of the most important things to me in a car, and this will get the realism so much closer than it's ever been. Not to mention all the possibilities of simulating really uncommon/non-existent engine types. Like, I'd love to hear a 14 cylinder radial without a prop on it, or that Chrysler six bank 36 cylinder.
The gritty sound that the new sim makes when rapidly changing speed is what really sells it.
I don't know if you have any musical inclinations, but it'd be awesome to be able to design your own brass and wind instruments with such an accurate simulation.
Definitly possible. He allready made a trumpet.
19:00 the fact that i know cars that sound exactly like this is crazy
13:54 a fully generated, purely digital combustion engine noise is amazing.
"If you're still running a core two duo rig in 2024 I'm going to tell you to seek help." That had me laughing way more than it should have.
This is a havock with low end contries
@@gabrielv.4358not really? You can buy a high core count 10 year old xeon with 16gb of ram and a decent enough motherboard for 100 dollars off of aliexpress. It's literally the only way to go Imo. Like for example if your budget is like 300 dollars, you can buy a rx580 or 5500 for 100 dollars, and the other 100 dollars you can spend on a cheap case, cooler, power supply and m2 sata ssd. It might be a stretch but you can do it in this budget range. But if you're upgrading than you don't need to worry about those.
One thing you mentioned were junctions. I think those might help out with the simulation because instead of having to simulate multiple long pipes, there would just be the one pipe leaving the engine. I do know that exhaust systems tend to split and merge multiple times depending on the vehicle so it seems like something that is quite important to the sound.
But regardless, this is a project I am deeply interested in. I have spoken to many people about this irl including my college professors. One of them even wanted to see about having you come in to present ES2D and ES3D.
He did say not supported YET! So it is a feature he is going to implement. But what you have mentionned is true engin sound does matter depending on the exhaust configuration, just search up x pipe vs h pipe that already makes a big difference in sound depending on the car.
god damn if the final product ends up in BeamNG then Ange better get some of that income, this is godly
He already does beam is his biggest supporter
@@Alucard-gt1zf forgot about that lmfao
The day this gets into BeamNG a lot of car games are in trouble. Given the sheer amount of freedom you can go with cars in BeamNG and trim levels, mod developers will have a fields day with this simulator.
Other games will just have one fixed sound to represent the real world counterparts. In Beam you'd have one model with multiple engines/exhaust sounds.
I can't wait to hear a big V8 with the New simulation
@AngeTheGreat I do hope this reaches you.
Allow me to contextualize the following: I am a 20+ year master mechanic, who has personally owned, worked on, and operated 13 different cars/trucks, and 13 different motorcycles, and worked on countless others. I am mildly autistic, and thoroughly fascinated with the operation, and the SOUND of each and every component of an engine. With these traits in mind, I trend towards objectivity, and less towards overlaying my preferences and emotions (remember: autism. How to emotion??). I tell you that to tell you this: I'd like to express my observation, that those who seem to criticize and question the thing they have no control over, seem to react as such (YOUR project vs THEIR experience - come on, people. LET HIM COOK.).
That being out of the way, I hope it provided context for my next statements. I have been following your progress on your previous projects, and I am thrilled that the almighty algorithm has favored you - YOU. HAVE. EARNED. IT. The path, and every milestone along the way, has lead you here. And I am ecstatic that it has. I am thrilled to be able to observe the fruits of your labor grow!
I have trust and faith in the way you are tackling this project. I have a DEEP appreciation for everything you've done to create as accurate a simulation as possible. I'm not a programmer, nor am I an engineer. But I'm thoroughly impressed at the now raw, procedural sound you've managed to replicate - I was really tickled at how the old sim had additional audio processing to achieve SOME level of real-world sound, and how the new sim doesn't need it at all to sound just about perfect to real world!
I am particularly interested at the content after the 16:00 minute mark - the 'wobble'. My intuition on the subject, and the reason I've decided to write and share, is thus: I have experienced this resonance, especially on motorcycles, where the experience is very raw, direct, and visceral. I think your simulation is extremely accurate! Resonance is a very big deal in the world of engineering an engine - it is absolutely crucial to scavenging, efficiency and performance. I know you already know that. So on to my intuition. If it's simulated, rather than addressing your code, which I feel the results would suggest is very accurate, I'd point you towards the area and angles of the intake and exhaust ports (particularly the exhaust, but both matter) and see if it does not directly correlate with a change in the behavior of the resonance 'wobble.' If these parameters are simulated, and changes to the design of the ports results in a direct change in the behavior of the resonance, I think we can reasonably conclude that you're 100% on the right track!
And if these parameters are not simulated, then I am talking directly out the wrong cheeks and I would be embarrassed to have written this college paper and consumed your time in vain.
Either way - I love what you're doing. I'd hazard a guess that most people who view, but do not comment, feel similarly, and trust and understand the kitchen is properly staffed - and those who criticize are the exact same people in starbucks saying their drink needs more ginger, and when the employee takes the cup, turns around and turns on the grinder for 8 seconds, then hands the customer the exact same drink, unchanged, who then take a sip and say, "perfect"!
This video makes me realize how the old engine simulator sounded like you were in a cabin of a car or something. Sounds muffled. This new version sounds fucking sick, can't wait to see what comes with it!
When you showed the exaust noises getting lower when you made the pipes longer, I thought "Of course, this is how a trombone works."
I dont know if it would come across, but I find the idea of the moveable bend of a trombone as part of some engines exaust hilarious. Maybe you can use that in some semi-serious testing. :D
Edit: Also thank you for that "degenerate" part, thats totally my alley. lol
Man every single time you make a video, you play it down and make it out as if it's not one of the coolest individual creations ever.
The love you put into it shows through with just how good this sounds, and it's clear just how much work you put in. It sound absoutely insane and it's still a work in progress! I've heard worse audio on other videos of REAL CARS on CZcams!
If you blindfolded me and had me listen to @15:50 onward and a real exhaust camera (like gopro stuck above exhaust in supercar videos), I'd legitimately have a hard time telling you which one was real.
You know it's gonna be a great night when AngeTheGreat uploads
Something i've noticed with car's exhaust is what i call the drainpipe effect. When the exit of the exhaust has a long unmuffled pipe section beforehand, for example vehicle with 2 mufflers but with rear muffler replaced with pipe, there's a certain warbling resonance that can be heard.
Engine Simulator 2 has it, that sound was there around 15:17. Superb work.
I paused your video thinking "thats pretty good. its not perfect though" then i got distracted, heard the 4 cylinder revving, thought "howd that video start again?" then realized it wasnt your video, it was a car outside that sounded identical... so good job.
The first custom muffler design you made makes the inline-4 sound like an American V-8 at some points. I love the acoustics!
It's beautiful to me what technological advancements have enabled for hard working and brilliant individuals like yourself to create.
I was in awe when Doom came out with 2.5D graphics. Amazed when 3DFX cards appeared. Poor when I bought a direct drive force feedback wheel in 2011. Blown away by VR. This is the closest I've felt to those experiences for years!
I've spent a lot of years riding 4 cylinder bikes, and I can't believe how real that sounds. Please tell me you're going to patent this tech.
The automotive sector could use this technology to engineer exhaust systems, resonators, mufflers etc and rapidly iterate designs without committing to manufacture prototypes.
I'm excited for you man. This is an amazing achievement.
I've got a 750cc GSXR, and that resonance sound you mentioned about the exhaust in the new simulation really does happen at certain RPMs. Your work blows me away. Intellect can take a man far, but your work and determination on top of it is what leaves me marveling at this.
5:55 nice
I like how the highest tier patrons of every channel have the craziest names
The fact that this is already approaching a level where it could be mistaken for a real sound is absolutely insane - every single update that you’ve pushed out has absolutely blown my mind!! Incredible work
fwah 13:46 that had me going, that resonance makes it so real
Yeah, sound so real
16:15 I used to have an Acura CL Type S that actually had a similar type of resonance at part throttle at a certain rpm range, I think its all in the exhaust design.
The new engine sim is coming along nicely. Something I do want to mention is that all of the audio clips sound like recordings of a car from a distance. Perhaps it's missing intake and mechanical noises that you get when you're up close with an engine.
This is so great to see your work evoluting
The fact that I'm playing this video in the background and had to look over if a video of me on my busa was being played somewhere really says something about this program
The pull at 15:45 was astonishing, I have a personal love for the downshifts. Only thing it's missing is some of the afterfires. Mine has some fat two brother exhausts so it's nothing obnoxious but it's definitely there.
Wow! Your work is incredible!
The 17:30 segment sounds like a growling big cat. Someone needs to build this irl lol. Also this project is insane (in the good way) in a technical manner and this tech will be a huge leap for all kinds of stuff. Great stuff my man! I foresee a lot of money in your future.
Man that is lovely, can’t wait for more progress
The sounds are def a massive improvement!
Sounds incredible, keep it up Ange!
I am an F1 PU Systems & 1D simulation engineer, and your job is certified as completely incredible. GT-Power at the door of everyone. Congratulation dude 🎉
Dude that's sooooooo sick. Good job! I can't wait to see where you take this!
This makes me very excited for whats to come. Well done Ange! ~AngleTheGrinder~
Absolutely amazing! I usually don't comment, but I want more people to see this
Amazing progress, can't wait for the next one
Sounds really nice. Excellent job!
Amazing progress, keep up the good work. Hoping to be able to use this to tune my 996 Carrera exhaust at some point...
i hope this one day leads to a revoltion in racing games. realistic sound would truly be a game changer.
this is sounding insanely awesome!!
This is insane. Good job man
Looks awesome!
Thanks!
This is absolutely awesome! Well done! There’s so many practical applications for this!
The downshifts… this project is absolutely materializing into more than the expectations set by the earlier progress videos… and those videos set HIGH expectations. I love the comprehensive of this simulation, and the result is SO good
Insane progress, you rock!
As an audio engineer, the output sounds bandwidth-limited.
Keep in mind that to reproduce the full range of human hearing you need a sampling rate of DOUBLE the top end of our hearing range. We hear up to around 20kHz, so to be able to reproduce those frequencies we hear as “air” or “crispiness” your sample rate needs to be north of 40kHz.
Common sample rates include 44.1kHz, 48kHz, 88.2kHz, and 96kHz.
96kHz is what I typically work at, as it allows for gentler, more transparent anti-aliasing filters during upsampling and resampling.
I’m sure your computer sound card is running at 44.1kHz or 48kHz, but if your simulation is only generating data at 20kHz or so, the resulting audio can only reproduce up to 10kHz, which could explain why it sounds so muffled
Did you like... watch the video?
The simulation is running at 40 khz
I suppose the actual reason is turbulence being hard to model precisely enough at high speeds. Also as far a I understand, this is the raw exhaust sound only, while there are other mechanical parts in an engine that also produce noise, but not simulated here.
thank you audio engineer. if i remember correctly, the mathematician who discovered this was a woman, which is neat.
@@crackedemerald4930 Who cares?
soup approves
Absolutely FANTASTIC, i can't wait the final release!
Amazing how far you've taken this. Can't wait to be able to use it to help tune exhaust for that perfect sound. Thanks for all you do!
This is unbelievably cool. Great work, I can't wait to see where you take this.
Now that finally sounds like something! Impressive job!
1080 Ti. What a classic, this is a man of culture. If you couldn't tell from all the other crazy escapades he's been on recently haha
Sounds amazing, keep it up!
I love this series so much.
Sounds fantastic dude. The deepening with exhaust length sounds really nice. The resonance "wobble" is accurate: There's always an RPM range where an exhaust sounds raspy and terrible. Also, changing cam profiles changes the sound of an engine dramatically. Very cool! Love your work
WOW. this is such a drastic upgrade from the original. This sounds LIKE A CAR. beautiful.
So excited about this stuff! Such an interesting project!
Amazing job! Unbelievably better
This is some next level stuff man, keep it up
Wayyyy Better!!! SUPER AWESOME! congrat
i am so excited to be watching this progress its so awesome
this is insane, you've done so much further, awesome