"Simulating erosion of a mountain": Wow that's neat "Simulating an ecosystem": Oh, that's pretty cool. "Simulating a Solar System": Wait, where is this going?

Judging by what Sebastian thinks is ugly, it would be an honor if he called my art ugly :D Awesome work!

8:02 "I opened up blender and made a rather ugly space exploration vehicle" My attempt: *potato*

"“If you wish to make an apple pie from scratch, you must first invent the universe.”" - Carl Sagan

This was comfortable to watch. It's currently 2 am, the background was dark, brightness toned down and the planets were easily visible. Idk why I wrote this. This was just satisfying

“Does your ship meet all the safety requirements?” “It has a fire extinguisher.”

"The engines don't move the ship at all. The ship stays where it is and the engines move the universe around it."

Man I am so impatient for part 2 I came back to watch this again xD

Watching those planets twirl around each other was mesmerizing

Give this guy 20 more years and you will find "coding adventures: the matrix" in your feed

Am I the only person who was startled when he hit the green planet and didn’t go through into a water world with tornados? Damn I love that game.

"One day they'll figure out that the sun is actually the center and its gonna make so much more sense" -- I spent way too long thinking about this

2030 Coding Adventure: Entire Alternate Universe.

The music accompaniement for the sphere “dances” was a really good idea

Coding Adventure: Solar System Clouds Hydraulic erosion Simulating an Ecosystem Procedural Moons Atmosphere Dude we don't need to replace the universe yet

3:09 what happens with headphone wires when you put them in your pocket.

This is really fascinating, the universe is really lit tbh

I was going to make a joke about him basically recreating outer wilds, then he said that's exactly what he was doing and I was like oh ok this makes a lot more sense now.

I love how he goes off topic every now and then and teaches you something super cool you never would of thought you were about to learn, then continues back to something super cool you clicked on to learn.

@Sebastian At 5:00 when the Sun starts to wobble, this is essentially how exoplanets (planets around stars other than the Sun) are detected! en.wikipedia.org/wiki/Methods_of_detecting_exoplanets#Radial_Velocity

In some future episode: So apparently the creatures are worshiping me as if I am god... Interesting

“Because of this, among other grievances, I’ve decided to make my own solar system.” Straight out of a Terry Pratchett novel

OMFG I've taken astronomy classes before I went into programming (No luck on either so far), and at 7:10 when you showed the solar system paths from a planet center. my mind immediately rose to Geocentrism, It's so amazing on how a change of perspective can show this. Early astronomers were baffled by the loops, until Heliocentrism came around.

Physics person: _tries to understand gravity_ Differential equations: *henlo*

It's interesting how you encountered the physics precision problem just like the Outer Wilds people did :D They fixed it by disabling any velocity changes to the player and just add all the forces in the opposite direction to everything else in the entire world! (Edit: Corrected game name thanks to Gulli)

3:10 my earbuds the second I put them in my pocket.

2:55 me trying to dock inn KSP

This is actually so cool. Outer Wilds is one of my favorite games so this was very interesting to watch.

Coding Adventure: Outer Wilds.

Here's an explanation of how they did the stars in Outer Wilds: The "stars" are actually just a particle system that follows the camera, the star particles are in a sphere shape around the camera. They set the particle system's layer to be in the back, behind all objects and UI in the world. Since they didnt move or rotate from your perspective it gives off the effect of stars really far away. A very interesting and effective way around the problem. You should apply it to your project!

Oh my god! Thanks so much for mentioning outer wilds. I bought it a few days ago on sale, and just finished it. It's genuinely one of the best games I've played! It scares me to think of a timeline where I didn't watch this video and check out the game. Anyone reading this, do yourself a favour and buy it, I've played a lot of games, and this one shocked me with how enjoyable it is!!!

Maybe when you add things to the planets, you could try scaling the player down by a large margin to make the planets a lot larger. (not actual planet size, but something that could be habitable by some species at least) Just to see what it would end up like. Maybe to make a second little experiment game where you can calmly fly across space, like some of those truck driver games you can find online. Paying minimal attention to keep the ship runnng, something that you could busy yourself with in the background while chatting with some friends. Something with more of a focus on the journey than the destination.

Everytime I watch a Sebastian video, I feel like such a dunce. But I am so hyped to see you try this. I remember watching the Outter Wild's documentary, & when Alex mentioned his solution for fixing floating point precision was to move everything to the player, I almost fainted from how genius that was!

This is amazing. I'd really love to see him combine a lot of his projects (procedural planets, ecosystems, etc) into a universe sandbox type game

Why is nobody talking about just how beautiful the planetary dance starting at 2:16 is? And how they go wild at 2:45? It's such a mesmerising scene

OUTER WIIILDS outer wilds is an amazing game and I am SO glad to see you playing around with some of the more basic concepts from it :3

Next video: Coding Adventure: Meaning of life

I love how he plays that tango music when 3 planets are rythmically spinning around each other

Just found this channel and I'm hugely impressed by everything. What you're doing, how well you explain it, how relaxing and easy you make it all seem... It's a good insight into some ways games and computers do things as well. And we get extra real-world information on the side. And I love the lines like the one about the purple planet people :D This is all-round quality content.

Absolutely loved the editing in this one, the early music sections were top notch. Keep up the good work!

1:16 You accidentally re-invented a simpler cousin to "leapfrog integration" by first updating the velocities and then updating the positions with those velocities in the Newtonian equations. It's called "symplectic Euler". "Leapfrog integration" is as stable as that, but more accurate (though you only see that after a very long simulation time, for a solar system possibly thousands of years). So don't worry, you probably did it right.

Not a lot of channels are able to make coding sound so interesting, but damn you do it well! can't wait for more content, it's awesome to watch and really also good at teaching.

This is gettig funny from how absurd it became. Seriously Sebastian, what the frog man? This Coding Adventure is the most over powered thing in coding I ever seen.

Coding Adventures has become one of those rare series on UKposts where I instantly like the video before even watching it.

These are my favorite videos on UKposts.

“Space,” it says, “is big. Really big. You just won't believe how vastly, hugely, mindbogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.” - Douglas Adams

I’ve been waiting to finish school before focusing on too many extra hobbies. But coding was always a desire of mine. I love your videos and watching you progress. I don’t intend to do anything major with it but your tinkering around videos are a perfect representation of just having fun with learning

WOW... just... wow. The beauty of simplicity. You have in your hands the potential to create an unparalleled work of art. This is but the beginning, and already you have something that captures the imagination with its possibilities. I can't wait to see what you would do with it.

8:00 Me: Hmmmm... that looks like outer wilds 8:45 Sebastian: I've recently been playing a brilliant game called outer wilds. Me: surprised pikachu face

Coding adventures might be my favorite programming content on the platform! Looking forward to watching this while I edit, please keep up the great work!

Amazing to see the start of so many wonderful coding adventures from this project!

this has to be the coolest thing ive seen someone make in unity. this opened my mind to so many things & the way you brought real life equations in & made it work just was so cool & i was understanding everything too

You make me feel inadequate as a Software Engineer. Which is exactly why I'm subscribed!

God: this is perfect Sebastian lague: hmm let me improve a few things...

Dude ive been following you for a while now and every video i find from you is more impressive then the last

By far my absolute favourite coding adventure. I really hope you continue this one and explain it more.

8:10 *NASA wants to know your location*

Next episode - Coding Adventure: Theory of Everything

You should make a game using everything you’ve learnt from coding adventures like the clouds or terrain deformation and include biomes, poles, planets/solar system and ai animals

What's more incredible than your work here is that men long before computers ever existed were able to derive, understand. And solve the exact equation you used entirely within the confines of pen, paper and their vast minds. But now, you, or i, if i wanted too, could code that. Encode the universe itself. Or at least, an incomplete fraction of it

Awesome stuff!

Me : struggle to make an fps camera Sebastian: I made a universe simulation, cheers

So so so great .... I have created my solar system in Unity today and this video just popped up in recommendation. You have calculated position manually that’s awesome. I was also trying to do it. But had many troubles. So I then just added initialforce instead initial velocity and boom no coding is needed for rotation. The idea of spaceship and you can land on it is awesome. You are amazing 💕

Thank you for videos like this! You are an inspiration to keep learning! I like how you questioned the or it of the purple planet's inner moon and then showed us what was going on. The mathematical function playing out....awesome.

I'm *very* curious how you made that orbit visualizer, my guess is rendering line segments one at a time, but regardless it looks fantastic!

Love this kind of stuff. I was always kinda peeved when games kept you on rails and space was either a small 2D box to shoot lazers around in, or you click a button and watch a video of a ship going into hyperspace and then it just loads the next small next level. So I always wanted to make a simulator that used scale astronomical distance and then I ran into the same problem every dev has. Good old floating point precision limits and memory limits. So I tried to problem solve. Why? Because why not. maybe I like experiencing the boring nothing of empty space :p I found that when using scale astronomical distances with scale models, one way to be able to see objects that are impossibly far away but still visible due to massive size is to make all these massive objects, say the solar system, scaled them down by some ratio, set them on a new layer, make a new same scale camera to see that layer, and them match that camera and main camera's rotation. This solar system camera would only view these objects. Likewise the main camera would not see that layer, but would use the solar camera as background. Objects on any sub layers cant interact with the player since the player and those scaled object would occupy the same space, but because of camera trickery would appear far away. The ratio of distance to apparent size is a very easy ratio. 1:1. Something twice as far will be twice as small. This concept can be nested within itself as well. i.e. The normal scale camera's background can display the solar scale camera's view, which can take it's background from the stellar cluster camera, which can take it's background from the next step in scale, and so on and so on to whatever is useful. It would only take a handful of layers at a decent step to reach galactic scale. (Which is far beyond what any of us can fill with meaningful content, just think of No Man's Sky, but that's beside the point.) Also the step doesn't all have to be the same between all layers. Each camera can't see more than it's own layer but uses the next layer as background. The final layer camera would use a normal background of a whatever or pure black. You could simulate the starfield with actual objects if you wanted.(DOTS and the burst compiler can help with rendering all that, esp if they are very simple glowing spheres.) A distance threshold is a good tool to keep the player somewhat centered at origin, but also to make sure that the sub layers shifted around their centered cameras properly at their scales. Each layer would shift relative to the threshold and scale of the layer above or below it. I found that centering the world on the player at origin at increments too small would lead to syncing problems with the other layers, again due to floating point errors, which is why we need to nest the concept within itself. So a bit of thought into what the minimum movement possible on a sub layer will determine what the threshold will be on the next highest or main layer. For objects: when an object on a sub layer got too close or too far from it's camera, that object or a replacement would be scaled up or down, moved appropriately and then set to be visible only to the new proper layer. In game-world space all the sub layer cameras would be at same point, the game-world origin. When an object would enter the main layer or secondary layer, say a very large starship that can still shoot at you from hundreds of thousands of KM away, one could load in a new object that has all the components needed for player interaction. Then return it back into data when it's out of range. For something like a planet you'd need a solution for modeling planetary pieces of terrain, prolly only loading the nearest terrain cells or w/e. I never got that far. I should really dig into unity city and content streaming. While scaled small, they layer objects still have the same memory footprint, so consider ways to turn convert each sublayer further into data, or make cheaper to render. Really though most planetary bodies are only visible up to maybe a million KM, and after that, they either twinkle like a star or are too dark to see. Though I was able to do stuff like earth to moon distances easily enough within the normal scale layer, representing a scale solar system and a handful of nearby stars took 2 sublayers, and allowed a player to move around at warp speeds and see the small amount of star stars shift accurately, yet remain fully immersive with no loss of player agency at any time. One thing that I find interesting about modeling astrological distances and such at scale, is that in real life we are getting photons at the terribly slow speed of light so the further away it is, the more off from the real position the image is, where in a simulation we can see their actual positions instantly. I often wonder what it would take to program it so that we can model the real, but only see based on light being so slow compared to the distances and giving it time to reach the camera.

I really enjoy watching your Coding Adventures since they illustrate how (sometimes even simple) math is not just boring formulas but can do really cool stuff.

As an aerospace engineer, I absolutely love this --- I've been wanting to take my engineering knowledge and love of orbital mechanics to make a game kinda like this, but I need to get a better hang of coding in Unity and C# first. Fantastic work! Love your videos man.

Imagine if he had procedurally generates worlds with clouds, ecosystems, and boids

"I would like to experiment" "Maybe some procedurally generated planets" "The planets don't even rotate yet" good job but please. don't make me hope :'(

I am an undergraduate in computer science, and the coding adventures are really enjoyable.to watch! I can't wait to see more of your works. I am subbing to see what you show next!

Your stuff is always of such a high quality! Admirable

This is what makes me feel happy

1:50 every video i'm curious how you use line renderer etc. to debug or show/ predict movement like this???

I'm literally blown away! I've watched a ton of your videos in the last few days and it's so fascinating what you create. Where do you usually get inspiration from? Kudos and keep the mind blowing content coming!

I am not a coder, no little to nothing about it. But I hecking love your channel and I get pretty excited when you post a new video. It's just very soothing hearing you go through your process. Very cool!

Here's a tip: If the planet's orbital periods are multiples of each other you should get a stable system. If think it's similar to how harmonic oscillators work.

Petition to rename this series to "Sebastian's Bizarre Coding Adventure"

Your videos really inspire me to get back into Unity. I'm a self-taught programmer and seeing what you're able to do in this engine just with programming is really eye-opening.

Incredible music choices 😍 I love your videos and watched all the planetary videos in reverse rn. Can't wait for the next one!!

2:22 just beautiful.. And to think, this is how our planets move around our moving star, in real life.

He sounds so excited when he explores stuff in his own game - it's really awesome!!

The tango music fit so incredibly well with the 3 body problem

Fantastic emulation Sebastian, thanks for sharing your work. It makes easy for newbies, like me, to learn and to understand how Unity works. Keep it up, cheers

11:34 You basically just made The Planet Express Ship from Futurama.. The ship stays still but the space around you moves.

When I finished watching the whole episode. UKposts: This video was published 22 seconds ago Ok, UKposts. I think

You have a great way of making these both informative and entertaining. As someone starting to play with shaders and game programming I thank you.

I love that you mention outerwilds! was literally thinking about it as you were exploring in your ship.

Exactly what I've been waiting for

Great stuff, can't wait to see Coding Adventure Episode 420 when you combine everything you've made and create universe 2.0! This video reminded me of a neat android game called Orion's Comet where you get to explore gravity and solar systems, thought I'd share it in times like these, hope it might cheer someone up

Love the short explanation of origin offsets! I worked on autonomous cars and we had almost the exact same problem where the car would start behaving much worse further from its origin. Cool how some things transcend the physical and digital world

I am imagining that he is gonna combine all of his coding adventures, tutorials into this amazing game. Damn. Sebastian, you are the stuff of legends.

KSP resolves this precision issue (as well as issues with the rocket parts) by instead moving all of the planets *around* the player, keeping the spaceship at the origin. Also, the planets are on rails, but that takes the fun out of the whole exercise, doesn't it?...

Am I the only one who was smiling throughout the whole video because of how cool this is

Simple and amazing at the same time. I truly believe that this kind of projects could be used at schools for educational purposes.

I love your videos Sebastian. This was a fun coding adventure

3:24 It would be great to see a tutorial on the orbit visualisation you have here.

Why didn’t you just add your planet generation to the planets?

just want to say thank you for taking us on this great journey with you.

please do another episode this was a lot of fun to watch!