"I researched not 3, but 2 techniques..."

A whole not 3 techniques. Impeccable.

I love when I'm just about to reach a summit after climbing for days, and a talking dog pops out of snow, teleports me and my fellow platonic solids to a shapeless void and explains mountain generation algorithms to us!

"Not three, but two" got me.

I love how you use a bulky robot for the brutal force method and a slim robot for the nerd method

I’ve never thought about using DLA for generating terrain, that’s a cool idea. Excited to experiment with it! Also, your visualizations and style are amazing, great work! :o

White dog talking to 3 shapes about mountain generation is something I never knew I needed to watch until now

I've never been so quickly hooked on a video about noise algorithms

Simply amazing how high quality UKposts edutainment have become. Cool plain explains

I'm like 4 minutes in and I'm so engrossed in the information that I didn't even realize how much effort you put into these graphics. This is some top-notch shit, and it's refreshing to see something new added to this scene, right around when I feel like many people are finally familiar with the general trick of Minecraft-like terrain generation.

Minecraft uses a newer technique now, where they mix perlin noise with manually entered spline points, which gives them more control and more realistic and less repetitive terrain. Henrik Kniberg (minecraft dev), has a great video about it called "Minecraft terrain generation in a nutshell"

thats one hell of an opener, and i absolutely love it

This video rivals 3blue1brown in quality. Absolutely jampacked with information and visualization, while being explained perfectly. These sorts of videos are what give me the motivation to continue my study and hopefully one day be able to code stuff like this myself. I'll probably reference this video in the future, so I'll be back when that time comes. Absolutely amazing video, 10/10

Thank you, now I have an excuse to rewrite my entire terrain generator for the 4th time! YESS! I'm so happy about this! Seriously though, this is great.

that "not 3, but 2" is a golden defying expectations line.

Hey I'm only a couple minutes into this video but it's already really incredible, the visualizations, everything -- so so good!! Fantastic job. Can't wait to see more!

The production quality on this is insane, I can't believe I am watching this for free. Instantly subscribed

Finally, someone who thinks perlin looks ugly. Also I unintentionally did the gradient method in one of my own programs and I have a good optimisation tip, I stored the gradient function (an in the video was x/x+m) as a gradient at the bottom of a texture I was using in the rendering process, its a small performance improvement and probabally slower unless your allready using an image in the process, but if your gradient functions are more complex and expensive it could be ever so slightly faster. One downside was that scince it was stored in an image it had to use a byte to store its value so you only had a gradient "resolution" of 256 this was barely noticeable though.

This is exorbitating quality from a UKposts video. I may guess how you create all the animations, but It still blows my mind, I'd really like to know more. You're one of the best Computer Graphics content creators on platform, keep up!

1:35 That sound design… it’s so subtle, but with good headphones, it really adds to the quality of the video!

You have to watch the Video 3 times, then UKposts allows you to see algorithm #3, using Simplex Noise, at the end - it's brilliant! Thank you ^^

inigo quilez is an absolute legend, everywhere i go i keep being led back to his work

Insanely high production value, very snappy, and good writing! Genuinely surprised your channel isnt bigger, i feel like im buying in before it skyrockets

I just stumbled onto this channel and the quality is amazing! Great job!

Extraordinarily well done animations and precise explanations. Your channel is so underrated!

This is such an astoundingly well-made video. Clean, concise, understandable with exactly the needed amount of detail to understand the subject without drowning. And the production of the video itself is incredible too! I'll have to watch a second time just because I really want to focus on exactly what has been done mechanically to both animate the video as well as how it works together with the VO to help convey the message better.

Incredible work as always - it's remarkable to me that you continue to improve your production quality with every upload!

Dude, you make the math so approachable with these amazing visualizations! This is seriously top notch educational content.

Incredible video, Josh. Not only was the multi-noise algorithms clear and easy to understand, but extremely entertaining. The production quality is fantastic, and it makes the content even more engaging. Looking forward to more videos like this. Subbed. 👍

The amount of effort and detail you put into this video is admirable, thank you! You got me wanting to experiment with Perlin noise and mountains now 😁

The attention to detail in the visualizations is incredible. I'm a graphics programmer myself and I was delighted by how much explanatory weight your animations hefted (clarifying and fleshing out the breezy voice over). You have a real talent for visual elucidation. This seems like an insane amount of work per minute of video. I hope it is worth it for you, because this really is top tier educational material.

It's always so cool to see information rich videos like this with an impeccable visualisation, that is not only clear but beautiful to look at! It must takes so much more time but it's so much better as a viewer, thanks for taking this time! The erosion lookalike technique is really interesting I can't wait to try that!

This is a great balance of deep technical dive with accessible explanations and amazing visuals. It no doubt took ages, thank you and please do more!

Your videos are by far some of the best on UKposts. You deserve so much more recognition than you get. I love your videos so much

Wow incredible video!! I've never subscribed to a channel so fast. I'm staggered by amount of work you put into this explanation, and how easy it was to understand as a result! Looking forward to more of your work.

I can't imagine how much work went into this video... the visualizations and animations are stunning, incredible job!

I love the editing and you explained the concepts really well. Hope to see more content of this type from you!!

The animation, sound, graphic, and overall presentation quality is literally insane. I'm so impressed and I don't even do anything related to this information, but man was I fully engaged. Instant sub lmao

I just saw your video in my inbox and I could swear your voice was familiar, till I noticed you also made the great video about Ray Tracing. Keep up the good work! You are entertaining and informative at the same time which makes listening to it much easier and more fun.

The level of dedication and original graphics and visual communication is out of this world! GREAT video. You explain things well and your graphics help me fully comprehend the subject matter. Will be subscribing and following.

the amount of work put into these visuals is incredible

Im so hyped to see someone finally do better than the "it looks pretty good" of perlin noise

Just the best video quality ever. This is where I would obsessively gush over every stylistic, audio and animation detail I noticed, but that would take a **lot** of text just to tell everyone (especially the creator) what they already know. (the derivitive robots are just the best though)

Just found this channel. Instantly subscribed. Phenomenal explanations and incredible effort. Thank you!

I did not expect to finally understand how upscaling works so well on a video about generating mountain terrain. Everything else you explained made sense too, you do an excellent job at it!

So glad this was in my recommendations - It was very well explained for any level of prior knowledge so it filled in any gaps I had without boring me when it covered the parts I was already familiar with. Well done, looking forward to more!

Im so glad youtube recommended this video to me! I’ll be going through your other videos now, this one was so good!

This is incredible man! Both the content, and the visuals!

I wasn't expecting a video this high effort about random noise, but I'm pleasantly surprised. Subscribed. ❤

The visuals on this video, and how tightly they sync with the narration, is astounding. Oh and the sound design, like those small chimes that play when one of the visuals has changed slightly. There's something special going on here.

This may possibly be the best video I've ever seen, holy cow! Amazing work!! :D

This may be the most pleasantly animated video I've watched in a very long time. Incredibly good animation, sir.

Keep up the godd work. The Quality of your videos is just unrivaled.

All of the visuals in this video are so well done. I found myself watching some scenes over and over just to track the dog's mouth with the narration. It's impeccable how well animated this is!

excellent explanations touching on complex subjects without getting too much in the weeds and excellent visually descriptive animations, subbed

The animation's on this are just mind-blowing. Awesome video!

Awesome. Thanks for sharing your hard work. Stunning visuals!

The quality on this is crazy. Subscribing after one vid because you deserve it

This is a genuinely brilliant video. The production value is great, but the explanations are excellent.

Amazing video! CGI was amazing, and the explanations were super clear! I’m working on a terrain generator for my game, and I’ve gotten some new ideas after watching, thanks for making this!

What a phenomenal video. The simple but precise visuals turn what would normally be a headache to learn into a pleasure. If you keep this up I'm sure you'll be swimming in subscriptions in no time.

Some of the best visuals I've ever seen in an educational video, great work!

this was an instant sub from me, damn dude this is really really incredible... I can't believe you only have 62k subs... you will be at a million soon and beyond

I love the sound effects. They really enhance the already stunning animations

This video is absolutely fantastic! Hope this gets a lot more attention man!

I love this channel so much. It’s all the little things you do. Like how the bulky orange robot is used to symbolize the brute force method. And the lean elegant robot represents the lighter, but more complex approach.

I LOVE procedural generation and the quality of production got you an instant sub. I already knew quite a bit about terrain gen yet I learnt a lot from this video! I've always wondered how Minecraft generated multi-chunk structures, thought of one way they could do things (basically placing random points on a super scaled down world map) which actually just ended up a very convoluted implementation of cellular noise. Thanks for clarifying this!

Stunning visuals, great explanations and an interesting topic. Thanks for sharing

Really good video man. The animations are, as always, so cool and clever. Hell of a lot of work behind this. Keep it going! :)

Holy hell, this is a very good visualisation. Hope you keep this style of animation for future explainers, preferably shorter so it's not too onerous for you! Subbing for more : )

Great video, thanks for making high quality educational content! I'm an experienced graphics programmer but didn't know about the gradient trick and DLA terrain... Until now!

One of the best and most curated video I’ve seen so far

Absolutely brilliant video! So well illustrated and beautifully explained.

You did a GREAT job on the presentation, which really made the topic even more interesting. Excellent!

I've been fascinated with terrain generation for decades now, really cool to see visualizations of the various formulas in use. Channel name checks out.

This video is such great quality, you did such a great job! 🙂

Wow. Incredibly high quality video and very full of information. I hope to see many more in the future! Keep it up!

As a terrain artist, the DLA approach really peaked (hah) my interest. Fractal Perlins just don't cut it, although indeed much more interesting than plain Perlins, they still have that "CGI" feel to them. I think the DLA approach offers a really solid base shape which you can tweak and augment further without a lot of hassle. Do you happen to know if such an algorithm is resource intensive and/or easy to code? An alternative method, which I think you could combine with Perlin and Voronoi cells, is to cut out rivers and valleys in a select area of your terrain. You'd have to somehow ensure the edges of your Voronoi cells all have the same elevation, so the water would flow to a common lowest point, but then you could (I think) do partial water simulation, cut valleys, and have great mountain shapes. If interested, I have a timelapse of such process on my channel! As for using plain old hydraulic erosion, imo that only works if you do a proper terrain simulation, so it doesn't appear feasible to me at the moment. You'd need different layers of rock to be simulated, as otherwise all terrain is eroded equally, and in the end it would still look artificial (just search "World Machine Mountain" and you will see the flowlines of the erosion and shapes all are similar).

Really amazing video, and incredibly well made for a channel of this size! I hope to see more cool stuff from you in the future

This is 3B1B levels of production quality and explanation. Fantastic work!

The animations are incredible and help a ton understanding these concepts

Instant subscribe for that awesome production value! 🔥 I was working on an algorithm a while ago that used simple texture reads to generate landscapes. You feed it tiling displacement maps and it repeats them at various scales to create realistic terrain. Worked pretty well! It was fast enough to displace an 8km x 8km terrain in realtime using Nanite in UE5.

This is so cool! Thanks for the high-quality content!

Intriguing subject and extravagant visualizations. Great work!

You don't even need to be interested in the topic to watch this video, you can watch it for the insanely talented made visuals

OMG I randomly got here and thought that you must have millions of subscribers with such an awesome production quality. This is exceptionally good and cute to fully animate your character talking to the audience as the geometric shapes. You can fill the pure talking time with these animations when there are nothing else to show at the moment. I love the smooth movements and I really hope your channel gets big! EDIT: Oh and not to forget to mention that the explanations with these nice and smooth animations with the distinctive sound design make it also very easy to follow and understand every point easily. I was really surprised how much effort was put into all these graphs, transitions and interactions so it felt like a movie, instead of still images with little 2D/Flash animations to make it wobble or something. These were fully made in this 3D environment, as far as I can see.

Man the visual alegories with the vfx here are soo good!!

Hello Josh! You have an incredible channel. I will be using these techniques in my projects, thank you so much for your work.

Literally my new favorite channel!

I am an IB student from Spain and one of our asighnments to pass is to do a simplified version of a scientific paper on any subject, this video has helped me finnaly figure out what to write it on! Thank you so much!

Some of the best explanatory visuals I've seen. I very much like procedural terrain generation but it can be done badly. I hope this helps aspiring (or experienced) developers make better things! Awesome video

I'm shocked you don't have more subscribers. The production quality on this is immaculate

Great content Josh, please keep making high quality content about the math of game development like this and ray tracing.

Absolutely amazing presentation, I feel like I have a good enough overview to build either of these in pretty much any language I want, plus know how to dig deeper if needed. Quite possibly the best technical explanation I've ever seen in software.

Really great video, thank you for this! I played a lot with Perlin noise to generate sand in my last game. And the idea of reading a perlin image as the value of the slope instead of the value of the color is amazing. I'll have to figure out how to code that. I got sand dunes to work by substracting clamped perlin noise on my initial perlin texture, but thats super specific. I spent hours tweaking values to make it work

I'm so impressed that you researched 2 techniques instead of 3. Incredible!

Your videos are sooo pretty and well made! I love it.

bro your animations are so good!

This is probably the most creative technical explanation I've ever watched.

your explanation of gradients is one of the best i’ve ever seen. really impressive for a video where that isn’t even the main goal.