200K Objects simulation, Testing Explosions

Trying to add an explosion effect in my very basic CPU circle only physic engine.
Written in C++ using SFML for graphics.
Github github.com/johnBuffer/UnitedE...
Music freepd.com/music/Be%20Jammin.mp3

[@erilobar9402]

bruh that chicken goes from looking fly as hell to being pretty messed up

[@michasengotta2295]

chicken going from fly to fry

[@steamhearteyes]

HA HA AH AH AHA HA HA HA HA HA

[@jmsether]

Drugs will do that to you.

[@spidertyler]

Body shaming

[@AAvfx]

So beautiful! I'm glad I've found this channel! 😊

[@eperou8846]

E

[@melanin_m85]

same

[@pasmoluiso]

Me too

[@phantomascom]

I love seeing the grain boundaries between different crystal lattices! So cool!

[@terrasolaris5104]

Right??!!!

[@SirusStarTV]

Left??!!!

[@Tayfaan]

@@SirusStarTV Yes, dad

[@bobsmithy3103]

Anyone know why they even appear?

[@thant0se]

@@bobsmithy3103 kzbin.info/www/bejne/rqavY6yKYqdliq8 should cover it better than I could :)

[@YPOC]

I love how the particles begin to start "grain" boundaries, even though they start close to optimally packed

[@tyler2854]

Those explosions look really nice. I especially like 2:26 when you can see the shockwave moving through the objects.

[@vishnuj.nampoothiri9037]

1:25 - When they ask you how you are, and you just have to say that you're fine, when you're not really fine, but you just can't get into it because they would never understand

[@ananttiwari1337]

lmao

[@stickmasterlukeRBX]

Is the simulation deterministic? If so, it would be cool to run the simulation, then save a map of the objects and their positions. Then paint the objects based on their positions after the simulation. Then run the simulation from the beginning with new colors mapped on, so that it looks like the explosions organize the image instead of mixing it.

[@angrywolfjr7164]

what a massive improvment from last one's limit, this is a big inspiration since i am learning sfml and c++ man i hope your channel blows up

[@markusbuchholz3518]

There is lack of words in dictionary to express how impressive your project is. I am deeply in shock. Master of piece, Thanks!

[@askplays]

wow, these simulations keep getting more and more insane

[@GoldballIndustries]

I believe the circles forming around the explosion to be particles moving so fast per frame that they quantum tunnel, and by the time that they slow down they collide with a particle and create a mini explosion

[@danis8455]

taking the lionhead studios logo to new lvls

[@CreamPolo]

I'm a big fan of your work. Thank You

[@Algok17]

Amazing perfomance!

[@charaxofgythium4863]

This is next level breath-taking. Im speechless.

[@Mas3341]

Even though this is circle only physics, I wouldn't call it basic! 200,000 objects in real-time and really stable object restitution. Nice!

[@HueyTheDoctor]

Dude, you keep making this stuff and I'll keep getting baked and watching in dumbstruck awe. Deal?

[@lavenderbride]

Must be awesome to come this far in your self-development.

[@JD-qq8fz]

1:49 Whoa, what do you think is causing those rays that go outward from the explosion like fragmentation? Are those weirdly directed pressure waves or a high velocity particle slipping its way through? (Or something else)

[@markoftheland3115]

I'm wondering the same, commenting to receive notifications

[@higginsisaac]

I hope they answer!

[@PezzzasWork]

It's because of high velocity objects being expelled by the explosion.

[@du42bz]

I think it also has something to do with the hexagonal shape of the particles

[@JD-qq8fz]

@@PezzzasWork Yeaah! When you zoom in and slow it down like that you can catch a glimpse of them a frame at a time-- they're fast! (were they the ones at the epicenter?)

[@A-Random-Guy]

That is beautiful Also very optimized physics engine you have there

[@abigweed1811]

I'm astonished the performance stays acceptable (15-20ms) That's bloody around 50-70 FPS!

[@DaniilBubnov]

That music... it just can't stop..

[@Zappygunshot]

This is an interesting look into liquid dynamics, plate tectonics, pressure wave propagation and crystalline structure formation all at once. In essence, all those are the same, but at totally different scales.

[@someordinarydude8813]

So satisfying to watch :)

[@Escue_dread]

this is what i need to watch before an ap test

[@alexvandenberg3371]

What is super interesting is these fracture lines at 0:50 actually look a lot like the fracture lines of real crystal lattices of metals etc! Cool stuff

[@stevesajeev6477]

Wow.. Your videos are awesome.. Your projects run smooth and very beautifully.. I loved the hen's face after the explosion.. I have a request, and I think most of use have this too... Please make a video showing how to make particles, physics, etc in c++ we all want to learn from youn . Your an awesome coder. So please.. Please....

[@besnails]

I see the shockwave, amazing

[@dimarichmain]

Now that is really impressive

[@DanteDMCry34]

looks like water, so well made !

[@mahirfr]

Will you ever make tutorial series on how to work with physics and simulations in C++?

[@nyzss]

I'm not even into cpp (more webdev lol), but i'd definitely watch that, i've been loving watching these kinds of project videos. they're really fun

[@lisyarus]

Sorry for self-promotion, but I happen to have a twitter thread on similar stuff: twitter.com/lisyarus/status/1318605976786919424

[@mahirfr]

@@lisyarus Any youtube channel..?

[@musclechicken9036]

I personally enjoy the picture you chose

[@tennohack6704]

You know what would be cool? If these particles acted as popcorn kernels, expanded explosivly and filled up the space

[@heonu1]

Wow this is awesome

[@Rumplestiltzchen]

A nice homogeneous blend

[@eliasknaapinen]

a dream come true after trying to have fun with TNT in MINECRAFT

[@okboing]

assuming each object's attributes can be described in, say, 256 bytes, this means your computer is effectively rewriting a 51.2 megabyte file every frame, for that first sim. Assuming, now, that it runs at an average of 111 Hz (according to the average I got of 9 ms per frame), this means it has to rewrite at about 5.6832 gigabytes per second. very, very faest

[@Mark00747]

Hey Pezzza, this is amazing! Is this animation related to your day to day job? If so, what kind of work do you do?

[@PezzzasWork]

Thank you! No it's not linked to my job, it's just a personal hobby as an amateur :)

[@gaspardallimant1768]

Vraiment génial !

[@selenefrost6267]

In addition to just the collision detection would it be possible to make the objects repel or attract eachother making them act like solids liquids or gasses? I imagine that would be more taxing on the computer however in which case you could remove the collision detection entirely and replace it with a repelling force to simulate liquids and gasses.

[@AlehzeySpidwagonovich]

Wow, that looks epic, i think you could pump it up by using OpenGL instead of a graphics library, maybe you could even get away with using instanced drawing, treating all objects like one entity, which is extremely fast!

[@GregHib]

Beautiful

[@o7.]

That's so cool

[@maticz3923]

Really cool

[@mralien9547]

I wonder what would happen if you had set friction factor to 0 (assuming it's not 0 already). Great work, awesome stuff.

[@atlasua2021]

How do you handle collision if the speed is high? You take 2 bodies and do the computation on their direction vectors? Or do you pass the beam to the body several times?

[@VestigialHead]

Awesome to see footage of how McDonalds prepares Chicken for their nuggets.

[@tomasbenders922]

So beautiful! I have so many questions. What kind of broadphase are you using? Doesn't it take like infinite iterations to solve stacked circles?

[@logicbuilder1204]

you can just check how far away a circle is from another circle, and then check in what direction.

[@ariseyhun2085]

I love your videos, so inspiring! I'd love to see you try something like this in Rust :)

[@gavin3563]

haha this is awesome. super cool to see the shockwave spread through the particles.

[@underslash898]

Did you improve on the underlying engine any more for this one, or is is the same as last time?

[@d-shiri]

Please make sfml tutorials. This is awesome man

[@melanin_m85]

cooooool keep it up

[@vincentpollack]

I cant believe how smooth its running? is this rendered in some sort of way or is this simulation real time?

[@AntonioNoack]

The calculation time per step is in the top, and it's

[@brunor.922]

@@AntonioNoack it isn't made with python xD

[@AntonioNoack]

@@brunor.922 it still could run in real time with the right optimizations ;) e.g. compiling it

[@data_5674]

It's in real time, and probably uses multi-threading

[@stinkytoby]

Source code is in the description

[@gavin3563]

what do you make these projects and games in? i'd like to learn how to do something like this

[@LUVVEOUS]

Next video: Throwing things into ball reservoir

[@stenzenneznets]

Amazing

[@vincentpollack]

Nice choice of picture

[@trau_tms]

I'm seeing the same radius independently of depth and amount of particles above or below. Is it taking account of the inward pressure those particles have on the explosion? Maybe you do but the mass is scaled to the point it doesn't affect it, so that's why I'm asking.

[@spyrgelispyy]

How did you get a simulation so accurate and with so many particles so performant!?

[@sreekashuppari1882]

Wow! 🤯

[@fletchthebirb]

Idea: Make a bunch of explosions, *then* color the spheres and reset them to where they were at the beginning. So the explosions seem to randomly form the image.

[@dinohunter7176]

Photoshop next level

[@blinded6502]

Can you somehow implement sound synthesis based on vibrations these particles experience?

[@user-uo1yn4se8r]

Kinda fluid

[@wormjuice7772]

Ive send your video to Karoly from two minute papers. He has to see this. Such good work.

[@RecioDj]

Cool and good

[@rocketninja942]

@Pezzza’s Work I added SFML to VS19 and it still says SFML directory in cmake!

[@iibuprofene860]

0:45 me before my birthday party 2:06 me after my birthday party

[@Jonathan-di1pb]

Are u just instance rendering all the circles to get that render time?

[@HueHanaejistla]

how optimized is this i tried making a simple particle simulation in Java and beyond 1,000 my computer started to have serious lag

[@MaeqMa]

Nice

[@Ginto_O]

At first i thought there is a Kira theme playing in the background

[@anoobis117]

I love the zoom in and out with the drums

[@devsauce]

Reminds me of "The Powder Toy" :)

[@maticz3923]

Haha Imagine tpt but with particle based rigid bodies like in earlier videos

[@andrewcavallo1877]

Dancing lizard on thumbnail

[@fsrarsln]

1:07 did you see that arrowlike shockwaves? Thats similar to newtons watch and thats the reason why grain bins are leak randomly

[@ReZel4189]

from chicken to piccaso painting

[@dadutchboy2]

engineer gaming

[@puppergump4117]

I counted, there's only 199,998 objects

[@vinaciotm]

full tutorial, plss 👌🏻

[@Manabender]

How come every explosion has several radial lines coming out of it? This is best seen on roughly the 12th frame of 1:09 (or, about 1:09.20). My guess is that an explosion imparts velocity to all particles inversely proportional to (the square of) their distance from the blast center. For particles extremely close to the center, they might get so much velocity that they travel the distance of many particles in a single timestep.

[@dmitrym3757]

Isn't it nice? Thank you! :)))

[@atlasua2021]

WOW! F**K. It looks cool. Я не ожидал что ты выпустишь новое видео так скоро.

[@MasterTOB101]

1:35 the chicken is reborn as phoenix.

[@Mystixor]

neat

[@GhostlyHermit]

God

[@nikovbn839]

Nnnnnice :D Bigger boom next time? ;p

[@sky_hawk0811]

would love to use this. but installing it is confusing for me. could you make a tutorial on how to or does someone know how to already and if you do could you explain it to me please?

[@dawidepl7807]

Do you plan to make tutorial for such stuff?

[@alfonzo_]

your videos are very inspiring. I made my first neural network after watching the one where you control a drone with a nn.

[@GermanTopGameTV]

Nobody: KZbin at 1 am: "Psst, wanna see a cool chicken get blown to bits?"

[@batuhanonder]

Maybe one day I can be like you

[@wallabra]

Now add constraints of some sort between select circles, and you have a ragdoll engine :D

[@panociagasta]

0:12 How aliens made the pyramids.

[@triton62674]

Now make them all explode

[@LukeVilent]

Very impressive to say the least. I'd love to see the code.

[@lukephilbrecht3876]

were the explosions natural or did you make them

[@itoffice]

Have you ever tried or thought of simulating crystals and their forming ?... Maybe the shape need to be redefined also for that. That is interesting for material "science", as metals etc. can be seen as tiny groups of crystals. Working on metal and reheating or chock cooling it, reshapes the metals and its crystals and gives it different characteristics ... crystals are in reality called "grains" in metals, but is anyway the same stuff in a microscope. ... Crystallization is seen in many other places; for instance in making silicon ingots for chips and solar panels.

[@2fa284]

How do you get so good performance? =D