MESH GENERATION in Unity - Basics

[@CouchFerretmakesGames]

MORE more Advanced tutorial, please! I liked it a lot!

[@satouajin1429]

I agree. I have created meshes in Blender, however seeing how to create meshes in script is extremely helpful. I look forward to more advanced topics in the future.

[@AhmedKhalfYolo]

CouchFerret makes Games agreed

[@CouchFerretmakesGames]

@@satouajin1429 The fun fact is that this is how most of the 3D softwares do it as well. :)

[@Victor-oo4ux]

I just want to agree. We want more of this content :D

[@winterfallstudios7101]

You are awesome

[@benjoe1993]

This is the best BEGINNER mesh generation tutorial I've seen on KZbin. It's clear, purposeful and lets the viewer decide how they want to make their meshes in the future, instead of forcing an algorithm down their throat. Every other tutorial I've seen starts with a 10x10 quad mesh generation which has all these incomprehensible for loops in for loops in for loops with weird calculations it and you have to spend way too much time untangling all the coordinational and triangular data that they hid in those methods. Great video! Thank you Brackeys team!

[@anthonyjackson9194]

Just watched it and thought the same.... I can write my own endlessly confusing for loops. Nail the basics, then let me over think my OWN process. This is a great channel.

[@therawmeatball6883]

I'd certainly appreciate more tutorials like this one. Great video

[@XenuxDev]

It would be awesome to see more videos of mesh generation like this with procedural mesh animation, mesh cutting or something! Keep up the good work and thank you for your videos!

[@MKStrandholm]

If anyone is having troubles with being unable to see the triangle, it's because a MeshRenderer component doesn't get added to the GameObject automatically (atleast in 2019.4+) . if you manually add a MeshRenderer component to the Mesh Generator GameObject, then you'll be able to see it at runtime

[@shortreviews6004]

I'm a little bit confused, I'm having this issue, the triangle isn't showing up but I already added the mesh Renderer like he said at the start?

[@heckerhecker8246]

@@shortreviews6004 did you add GetComponent().mesh = mesh;

[@shortreviews6004]

@@heckerhecker8246 ah I don't think I did, but I worked it out another way since then. thankks anyway

[@heckerhecker8246]

@@shortreviews6004 lol

[@bigboichungus3744]

@@shortreviews6004 ay do you remember how you fixed this issue i have it as well but i have the mesh renderer and im getting the mesh filter component

[@stellarstudio5495]

Maybe a video altering the points of a mesh near an explosion to simulate holes being burst in the ground. Something to the effect of Battlefield style explosions on terrain. That would be pretty neat to see.

[@thatanimeweirdo]

or something like snow deformation!

[@dynamichunter843]

YES

[@CyberWolf755]

In UE4 its called render texture target. Basicaly you paint with a black and white brush over the terrain height inside its materal instance. Thats the theory, I dont know how to implement that in Unity

[@bobo1793]

​@@CyberWolf755 you can determine vertex height based on an image, in this case black and white. This technique is mostly used for generating maps for terrain height. Then you need a system to subtract (i.e. heightmap - footprint)a pattern and then recalculate the terrain or object. The objects should be small enough, so that recalculation is not too much of a performance hog. That is for directly modifying the mesh, since that can help with realistic effects in the changes you make. Unity also has the same terrain height option for shaders, but I have not really played with it. I think you would have to modify the heightmap in an image editor, but there are some texturing/modelling tools built in the latest Unity versions that I did not play with yet.

[@ComteJaner]

For big explosion you can interate over the mesh and pertrub all vertices away from the explosion based on the distance to the explosion. For small explosions or something like snow deformation it would be better to use a shader and a deformation texture which is a bit more involved.

[@ymts_vladyslav3707]

Wouu , i had a course of game dev, where lecturer didn`t normally explained about meshes generation and i felt stupid when the practises started , but after your lessons i have a strong understanding what i am writing in my code. Thanks a lot))

[@ricefrog]

I liked the more advanced topic, and I appreciated that you assumed I could swiftly understand the way the triangles array contents are indexes into the vertices array without a big explanation.

[@Noriyak1]

Pls make a video about using this technique to generate stones, terrain or other structures. That would be awesome :D

[@jirue]

A decent tutorial I would recommend for this is Sebestian Lague's videos on Procedural Landmass and Procedural Planet generating. It may take a bit to get used to the math involved though, just to warn you. kzbin.info/www/bejne/rZPTfpyBnrh-o5o kzbin.info/www/bejne/h3-WaopmZ5V_p7c

[@isaacng3020]

@@jirue Hey man, thanks for the links, I didn't know about Sebestian Lague's and he's fantastic

[@QuailCraft]

Just a quick tid bit of information, he is using unity built in render pipeline, If your using unity 6 and Universal render pipeline, I had to create a legacy material under Create > Rendering > Material, set it to legacy/Diffuse, then edit > rendering > Materials > Convert selected materials to URP. Alternatively, Create a new material to be used in the project, for shader, use Universal Render Pipeline/Simple Lit.

[@d36williams]

thank you for the update on this

[@frankverheyen344]

6:29 no need to remove the comma, it's a feature of C# to have trailing commas in initializer lists, which make editing easier (=no need to remember to remove the comma, and no need to add it again when you extend the initialized list)

[@elturkocharro4106]

Thank you for clarifying things that may be obvious for most of the folks, but really helps me to understand the whys of the simple things. Such of why the creation of the vertices has to be clockwise for instance!!

[@_MrMen_]

@Brackeys, you explain things so clearly and in simple terms that make your tutorials so easy to understand. Thank you.

[@rakibjahan]

1. Procedural Terrain Generation 2. How to manage lengthy codes and break them in scripts in an organized way 3. Design Principles 4. Dependency Injection 5. Optimized Code These are some topics needed for production level development. Will be really glad to see videos about them in the future. Thanks! :)

[@pdog1]

The more advanced, the better! You have a great way of explaining complex things in a very straightforward and understandable way and that is needed more in advanced tutorials than the simple ones. I'd love to see more about mesh rendering as I didn't really think about it as something I could accomplish until now. This is much easier than I had realized. Thanks!

[@thunderkilll1037]

can you do more about this mesh renderer please brakeys

[@dyasio655]

support him on patreon.

[@thunderkilll1037]

If i can pay money online yeah why not but if you don't know this let me tell you : there are country that don't have any mean to buy things on the net or pay for anything

[@thunderkilll1037]

So brakeys is the only guy that helps me through my studies so thank you very much man from my heart

[@satouajin1429]

​@@thunderkilll1037 I would have assumed (possibly incorrectly) that those who live in a country where they both can watch Brackey's videos and have the capability to launch Unity would also have a means to pay online. If I misunderstood and you are simply referring to being unable to afford paying, then i agree. (Though this is down to individual circumstance more so than just country) (no offense intended, and off-topic. But i'm not trying to say 'if you can pay brackeys, then do' in the slightest. more so being inquisitive about your statement)

[@thunderkilll1037]

Life is hard man we have internet for sure my university has some conventions eith unity so that we can use it for studies and like i said no one in Tunisia can buy from the internet untill this day

[@0Bennyman]

Great Tutorial! Would love to see this expanded further, going into something like Water or Terrain would be great to see!

[@Dasky14]

A good video, but a bit too simple... I really hope you're going to explore this topic a bit further. For example, show how to automatically deal with putting triangles the correct way around for backface culling.

[@MrJuancho2706]

Yes please!

[@dyasio655]

you can check Sebastian league channel. but not beginner friendly like brackeys.

[@jellejacobs7480]

is this simple??!?!?!

[@MrKraignos]

I find it's very simply put and very well explained for a 10 minutes video. That makes it painless to watch and enjoyable to follow. Took me a lot of reading back in the days before I get to this point. Awesome video, lot of value like all Brackeys videos. Of course you want to explore the topic more in-depth, but nice introduction

[@OlivierPons]

Yep backface culling is not often a problem, but when it *is* a problem, it's hard to solve.

[@akronred648]

0:23 Worlds Adrift, may you rest in peace.

[@InkDevil999]

Thanks for the awesome tutorial! I was in need of a 2d circle segment in 3d space and with this I was able to make it! I can adjust the amount of extra verticies for a rounder and smoother edge, the angle all the way to 360, the radious of the circle segment and finally the color of the mesh. It took a little while especially since I spent a lot of time figuring out why my calculations were completely whack (Unity uses radians and not degrees duuuuuuuuuh!).

[@adilmoazzam8769]

Bro I m serious u r like a unity genius your tutorials are number one

[@KingKeanuTheFirst]

Even if this is the tip of the iceberg this actually help me understand how to create a game I've wanted to do for a while, I didn't search about it cause I'm just a beginner who need to learn more code and work on basic games, thank you Brackeys

[@benjoe1993]

If someone wants a more hands-on, real life example video on mesh generation after watching this video, look up these on YT: "Unite 2015 - A coder's guide to spline-based procedural geometry " "Unite 2016 - The Power of Procedural Meshes" Great talks and they go hand-in-hand with this video!

[@GautamSingh-yn9cb]

@3:43 its not a compulsion to feed the points in clockwise direction, it depends on where you z axis pointing. If its pointing towards us then anitclock pattern will work just fine. If Z axis is away from us then clockwise will work just fine

[@justinwr092]

Great stuff. Yeah I think doing videos that go past Unity basics is great, especially ones that deal with topics like vertex winding that give a glimpse into how the engine actually works under the hood.

[@realitycheck1018]

Yes, please make more tutorials. Brackeys, you have got to be the best teacher I've ever seen. You are solely responsible for my deciding to learn Unity. It'll take me a few years to master all of this and make a game (I'm totally new) but with your tutorials I am learning a lot. I would ask, beg, and plea that you make a tutorial for everything. I will watch a tutorial on how to put on my shirt, if you made it.

[@realitycheck1018]

@HARRESH A/L SURIAPARAKASH Moe high

[@danutorr]

Brackeys still saving the day, 4 years later. Rest in Peace.

[@haydenkelley9806]

All hail brackeys, the god of coding tutorials

[@rupeshmandke]

Please do update this tutorial further to create complex meshes, dynamic meshes etc. Your style of tutorial is amazing!

[@gwenturo9550]

SpatialOS Is what made my favorite game of all time, Worlds Adrift, actually work. God I miss that game. You borked it, Bossa! Glad you showed some gameplay in the video! RIP World's Adrift

[@PolymathAtif]

Miss you brackey.

[@neuvedeno1]

I wish there was a video like this 2 years ago when I was learning this topic. Definitely more advanced videos like this would be more than welcome :)

[@protoactivenuclear7727]

you explain stuff really well. after watching this video i made a cube and its really fun

[@metincetin9614]

Thanks for the video! Generating more complex meshes is something that needs to be checked, and is both fun and cool 🙂

[@nandorbacso4625]

Before I saw this video, I'd guessed mesh generation is the most complicated thing in Unity. Thank u Brackeys!

[@pinkiris8721]

I love how his voice is so listenable, because sometimes you get tutorials that have boring unexcited voices and they are so hard to listen to! But Brackeys doesn't fall into that trap at all. Keep up your great videos Brackeys!

[@shenlong3879]

For anyone interested in the basics of how "voxel" (or any volume) worlds are polygonized (turned into a polygon representation that can be rendered by graphics cards) check out algorithms like "Marching Cubes".

[@rikseth9606]

Of Course we want more advanced and complex tutorials!! Can't just wait for one more week

[@SqrlyCode]

Yay, keep creating some more advanced videos that scratch more than just the surface.

[@iamlogdog]

Finally some advanced tutorials that are so useful! Yes, please do more of these!

[@aoberthuer]

Liked it a lot. Thumbs up! I hope this topic will kick off a small series - would definitely be worth it.

[@deepmeyt]

I love every single video you make. Even if you made tutorials on how to play violin, I would have loved that.

[@IamJaieCarter]

Brackeys is a genius, Brackeys is a genius, Brackeys is a genius, Brackeys is a genius

[@ljam0786]

for anyone looking for the finished code: using System.Collections; using System.Collections.Generic; using UnityEngine; [RequireComponent(typeof(MeshFilter))] public class MeshGenerator : MonoBehaviour { Mesh mesh; Vector3[] vertices; int[] triangles; // Start is called before the first frame update void Start() { mesh = new Mesh(); GetComponent().mesh = mesh; CreateShape(); UpdateMesh(); } void CreateShape() { vertices = new Vector3[] { new Vector3 (0,0,0), new Vector3 (0,0,1), new Vector3 (1,0,0) }; triangles = new int[] { 0,1,2 }; } void UpdateMesh() { mesh.Clear(); mesh.vertices = vertices; mesh.triangles = triangles; mesh.RecalculateNormals(); } } //hope it helps!

[@neros1385]

Thank you !!!

[@ljam0786]

@@neros1385 no problem!

[@Space_Ninja_GameDev-yq6lp]

Thanks man you are a hero !

[@robloxgamer6731]

THX!

[@what_the_feek5568]

This is what we are looking for brackey.... WE NEED MORE ADVANCED TUTORIALS..... YOU SIR, MAKE US GREAT AGAIN !!!

[@unlimitedcreativity4400]

Yeah I love these type of advanced videos

[@arckantox4102]

You might want to specify that there is an issue with the normals when you have several faces sharing the same vertices since the normals direction are relative to the points rather than faces. This makes it so you need to duplicate each point for every face that shares it. That is why the basic cube in Unity have 24 vertices instead of the 8 you could believe at first sight. But this could be brought up in a more in depth tutorial. (That I hope you will do)

[@danbobjim123]

Thank you, very interesting!

[@krissloo143]

RIP brackeys :,( just watched a video explaining same thing and remembered you

[@monotonedevelopment]

AKA Dani be sad when Brackeys didn't make anymore unity particle tutorials

[@johnforde7735]

I like the more advanced topics. Thanks.

[@kodegamedev9007]

Yes yes yes more more MORE. I wish to have landscape that progressively changes color based on height and surrounding objects.

[@mustangmarcus]

Note for anyone doing this in Unity 2021+ URP... I had to give the GameObject the diffuse material before it even showed anything because otherwise it was just invisible.

[@musicgotmelike9668]

This dude delivers on ans possible Unity topic, insane. Thank you man!

[@serj_1264]

I always hated Sunday's evenings like a pre-monday or something. Thanks yo you now I wait for em!!

[@18ury18]

Hey Brackeys, I love your videos so here's a request. I would really love it if you made a tutorial about saving complex information on runtime. Things like a scene thast has changed while playing, save the changes of the scene so when you launch the game again the changes persist. I've been struggling to find a tutorial or something to learn how to do it. and it would be really awesome if you did it! Keep it up!

[@Bakamoichigei]

Great video, but yes please, a follow up! Having just watched Kate Compton's excellent GDC 2017 talk about procedural content generation, I was really hoping this would go on to demonstrate how to implement at least a basic procedural mesh generator, instead of just hard-coding a couple static triangles.

[@John-mp8sm]

Finding these mesh gen videos very helpful

[@AkshatSinghania]

1.Add a empty object 2.Add mesh renderer and filter to it 3. Add this script- using System.Collections; using System.Collections.Generic; using UnityEngine; [RequireComponent(typeof(MeshFilter))] public class MeshGenerator : MonoBehaviour { Mesh mesh; Vector3[] vertices; int[] triangles; // Start is called before the first frame update void Start() { mesh = new Mesh(); GetComponent().mesh = mesh; CreateShape(); UpdateMesh(); } void CreateShape() { vertices = new Vector3[] { new Vector3(0,0,0), new Vector3(0,0,100), new Vector3(100,0,0) }; triangles = new int[] { 0,1,2 }; } // Update is called once per frame void UpdateMesh() { mesh.Clear(); mesh.vertices = vertices; mesh.triangles = triangles; } } using System.Collections; using System.Collections.Generic; using UnityEngine; [RequireComponent(typeof(MeshFilter))] public class MeshGenerator : MonoBehaviour { Mesh mesh; Vector3[] vertices; int[] triangles; // Start is called before the first frame update void Start() { mesh = new Mesh(); GetComponent().mesh = mesh; CreateShape(); UpdateMesh(); } void CreateShape() { vertices = new Vector3[] { new Vector3(0,0,0), new Vector3(0,0,100), new Vector3(100,0,0) }; triangles = new int[] { 0,1,2 }; } // Update is called once per frame void UpdateMesh() { mesh.Clear(); mesh.vertices = vertices; mesh.triangles = triangles; } }

[@AkshatSinghania]

@Random Person There might be error with your packages or something else coz i have tried this myself

[@AkshatSinghania]

Hi thankyou myself i really needed it now

[@AkshatSinghania]

Still Useful to me !!!

[@lyte69]

do more of this please, i love this type of videos.

[@UnityMMODevelopers]

Awesome Video. Working with actual procedurally generated meshes in Unity is really pretty cool and powerful. Unity is one of the most customizable game engines around at the moment. :)

[@-KillerHawk-]

I would love to see this working procedurely. Please make more!

[@jupitersky]

YES!! Please do a more advanced tutorial of procedural meshes!

[@coderdbd]

Great tutorial! Thanks for that and thanks to the Unity team for making it that easy.

[@dilute6980]

this is so amazing, this has opened so many doors and windows for me.

[@r_pasta2228]

I would love these tutorials ! Btw the name of the video should be like - 'Operating On Mesh Points' or something that doesn't make me think that finally I am seeing a procedural landscape generation tutorial from Brackeys.

[@lucaballarati9694]

This has been your most useful tutorial to date. I can't wait to put it into practice

[@G3oX_ESP]

So cool and very well explained. I would like to watch how to generate a terrain with this technique.

[@calvinlucian387]

More of this please !! Seb Lague's tutorials were awesome but frankly too large to take in all at once for a greenhorn like myself.

[@manoelseabra5212]

I simply love you channel, but the videos were almost always very basic. That content is what I was looking for! More advanced content!

[@paturuzu4705]

Brackeys For months I have seen your tutorials and they are all very interesting, I could even apply many things that I learned. What I ask you in a straightforward manner is that when you can, give a tutorial on how to optimize a game in the best way before compiling it so that it can run well (fps). Thank you very much from Argentina.

[@Mr.Adhesive]

I don't want to look like a condescending jerk, but a topic like that would he extremely hard to cover. Not only is optimization something that is pretty advanced, but it is most often extremely specific to what you are actually trying to optimize; he cant just say: "multithreading will solve all your problems and this is how to do it" and have it be a good video.

[@paturuzu4705]

@@Mr.Adhesive I understand what I decide, but my intention is not to seem demanding, I simply meant that we can understand, for example, how to properly use the profiler, my concern is only from that place, I value these tutorials extensively, only sometimes it happens to me that I am working in some project and I begin to be limited by not knowing how to optimize it even if it is basically. but my concern is always with all respect. regards

[@TrizZzle]

Great tutorial, I'd like to see more of those! Now a video about manipulating vertices and assigning different materials would be really nice! Keep up the good work!

[@TheEvilSketch]

TERRAIN! Noises, fractals, voronoi, mixed, multiplied, sloped, edged .. EROOOSION!

[@tejasmaloor2507]

Please make more of these advanced tutorials like terrain generation through script and please focus on scripting more. Love your videos always look forward to them

[@vitorfigueredo18]

I'd really like to see more OOP tutorials, such as, how to use singletons, which is the best way to use methods from a class into another when using prefabs. GetComponent or Singletons or FindObjectOfType. It would be awesome.

[@samu902]

Please continue this series on meshes

[@crazy-boy6143]

Nice, I learned something that can be useful

[@hosseinahmadian2160]

I've used simple mesh generation to create walls before but now I have to create spiral stairs with it. a tutorial on curved surfaces would be really helpful for me.

[@entozoon]

I can't tell you how long I've spent trying to understand the composition of meshes, but this video explains the concept so well! NB: It's the same in other OpenGL graphics libs, like babylon, threejs, etc

[@megalodogge]

Super cool! This theme deserves at least one more tutorial, especialy about adding different colors to a single mesh (if it is even possible??)

[@Player100203]

Short video, but anyway all your videos deserve 999 999+ likes. Thank you.

[@jamesmccafferty8869]

This is exactly the intro I needed. More advanced tutorials! These are so helpful

[@collwyr]

i'd definitively love to see more advanced tutorials, especially mesh rendering wise, i've been trying to create a gameplay mechanic that involves creating splat effects which is proving some what difficult to write as their is no real "help" for unity in mesh generation like there is for Unreal

[@luciacover9909]

Please make a more advanced video! I’d love to see a series on procedural generation terrain

[@stefatosgiorgos9300]

Very nice video! Is it possible to connect the vertices without using lineRenderer?

[@BoardGameMaker4108]

this was amazing, just the kind of thing that i can't find on the unity website. Please make more.

[@shibi6939]

so clear and so understandable, i love every tuto you made!

[@ArnoldsKtm]

There should be a playlist for this. It's a mess to find the other videos!

[@PiyushSharma-od2el]

This is Better Than my Math class

[@KreVagyok]

Its a great topic, but in my opinion need more details. It would be awesome to step to the next level, like the "How to make a LEVEL EDITOR" video. Making low and high terrain based on some greyscale image!

[@StepanKorney]

Wow! New videos every day!

[@KshitijDhar7]

Yes, please! More advanced videos will be very helpful

[@DexterDLopez]

This is pretty kool! I feel like I'm leveling up with this advance tutorial

[@TheBadassTonberry]

I almost clicked away when I saw SpatialOS is sponsoring this.

[@marcusrigonati7784]

Nice video, bring more about mesh and other stuff like that, really cool to make an object through code!!

[@sigrid714]

You should do a tutorial on Mesh cutting. Like if you swing a sword through something, could you cut the object in the path of the sword, like Metal Gear Rising.

[@petteriheino9856]

Was struggling with this just today. Thanks!

[@heybishop]

This was super! I'd be totally interested in more on this subject. Generating terrains is of great interest to me.

[@kkkaran786]

Yes Please!!!!!! more videos.....runtime mesh deformation too

[@pranshumishra9309]

We need more advanced Unity tutorials

[@ProfessionalJason]

Yes, more advanced tutorials. And an expansion of this one as well.

[@tvguideondemand]

This is exactly what I was looking for! More videos like this please.