yes please do a video on writing shaders

Two things I love about this video: 1) The pace - You keep a steady pace from beginning to end and never ramble. 2) The "advanced" lesson - It's difficult to find 'intermediate' and 'advanced' lessons covering Unity. This lesson is great for those of us who have more programming experience and a fundamental grasp of Unity. Keep up the great work!

For anyone noticing the one-frame lag, under the PortalCamera script, change void Update to void LateUpdate to draw the portal just before the frame is rendered and after the character movement is calculated.

Make sure that “Auto Sync Transforms” in the Physics section of Project Settings (which can be accessed from Edit) is enabled. If this is not enabled, you’ll find that when your character gets to the Teleport Pad, you’ll be able to see the Teleport Target for a split second but your character will not change position.

Shaders sound SUPER interesting, never really understood what they actually do. Would love a video about this!

A shader video/series would be great. I just want to replicate the grass you made for the shrinking planet game ;)

And The Award for the best KZfaqr Ever Goes to Brackeys!!

For anyone wondering why their player is rapidly going back and forth (your screen is probably flickering between rooms really fast), it's because you need to rotate the collider plane by -90 degrees on the x-axis. There goes half my Friday :D

Anyone else watching all of his older vids after he announced they wouldn't make any more? Still hurts but I wish the team at Brackeys a great time doing whatever they are doing

Can you make a video on how to do customizable characters? Switching clothes, hair, color, etc.

Dude, you are a life saver. Thank you, and please don't EVER stop making videos!

Note: The camera rotation math here is very wrong. It *only* works for yaw (left to right) and pitch (up and down) but will break badly if roll (tilting head side to side) occurs, making it unsuitable for e.g., VR, where your head will never be perfectly aligned with the floor. The correct math is a simple one-liner for rotation. Here is the whole LateUpdate function: Vector3 userOffsetFromPortal = Camera.main.transform.position - transform.position; m_otherCamera.transform.position = m_otherPortal.transform.position + userOffsetFromPortal; m_otherCamera.transform.rotation = m_otherPortal.rotation * Quaternion.Inverse(transform.rotation) * Camera.main.transform.rotation; My GameObjects are wired up a bit differently. m_otherCamera refers to the camera in the other map. This script lives on the portal itself (transform). m_otherPortal refers to the other side of the portal, in the other map, where the other camera is observing.

If your character isn't teleporting, you need to turn off and on your character controller momentarily while teleporting by using this line of code: player.GetComponent().enabled = false; This is what it looks like after applying: player.GetComponent().enabled = false; // teleport: // rotation float rotationDifference = -Quaternion.Angle(transform.rotation, reciever.rotation); rotationDifference += 180; player.Rotate(Vector3.up, rotationDifference); // movement Vector3 positionOffset = Quaternion.Euler(0f, rotationDifference, 0f) * portalToPlayer; player.position = reciever.position + positionOffset; player.GetComponent().enabled = true; playerIsOverlapping = false;

Learning about shaders sounds cool!

Sometimes a professional c# and unity programmer also get confused in some tricky things but brackeys was always there to help me . Thanks for your support always..😀

*YES SHADER VIDEOS PLEASE!!* the internet is so full with unity beginner-intermediate tutorials, I have never have the need to write my own shader that's why i never went deep-searching for ressources, but it would feels really good to acquire that knowledge. Thanks!

You uploaded this video just when i was searching for making portals in Unity , great timing xD

The camera sync should be done in LateUpdate to ensure that the camera movement of the player camera controller is done before syncing to the portal cameras to prevent the slight desync jittering you can notice when quickly rotating the camera.

I just paused the Unity course you mentioned to watch some videos. Ben Tristem's courses are great! Funny coincidence that you talk about it :D

So glad I subbed. I am a music producer getting into game dev and your videos this past week have been really helpful. Learning at a much faster pace than I thought I would.

To anyone who had an issue with the character jittering or moving rapidly back and forth during teleportation, the issue for me was the first person starter asset. Just go to PlayerFollowCamera object. Inside the section called "body", where it says "damping", change the values for x, y and z to 0. I was literally looking for this solution for hours and hours.

There's just one issue, the camera seems to be rotating (or rendering) at different times . When you move (for example) sideways you can see the pillars that make up the portal. It's like there's a small delay. Anyway, love the video!

My son and I are talking about using this to make it so players can go into and out of cave missions. We might use CTS Shader to cull the texture where the cave entrance is, so we will not need to use the cameras, but if we did not want to remove the terrain texture, we could use your camera system too. Definitely an A++ tutorial.

Also, wouldn't it be best to place the "PortalCamera" class's code in LateUpdate()? That way, all the position corrections are done right **after** player movement is calculated and right **before** the frame gets rendered.

Awesome tutorial and a great effect. The only problem I see immediately is if either room is bigger than the other, so if Room B is bigger than Room A, going to the far edge of Room B will show the outer wall of Room A.

how about a video on animating characters like changing weapon and interacting with components etc?

Amazing. I got it all working! Which is good as at the time of this post I have zero coding experience! Would just like to say that I had the problem where when I used the portal my player would be teleported back and forth very quickly due to the size of its collider. I solved this by not making the ColliderPlane the receiver. Instead I just made an empty object and put that infront of the portal, made sure it was facing the right way and made that the receiver. Boom, works are charm! Thank you so much!

You have so many videos on how to do such cool stuff in unity. How am I ever meant to watch them all. And I want to watch them all.

An interesting conundrum that crops up is when the portals have different rotations. The code for the camera movement is reliant on the portals facing exactly the same way. Anything else and it starts looking weird.

Shader programming is something that I reallly want to learn but I find it super hard to understand ! Make a video on shader programming too !

Brackeys: it doesn't have to be perfect Also Brackeys: proceeds to make it perfect

Simple shader tutorial will be awsome.

For the people who can't download that shader from description link drive.google.com/file/d/1P3HSi7alDGttF9R98xDW7OhtswLO1FHm/view?usp=sharing

Hey all, If you can't get the teleport to work, change the void Update() method to void LateUpdate() in the PortalTeleporter script. That should fix your problem! If it works give a like to bump it up so hopefully other people can see it!

You win the internets of the decade!

DUDE, THIS THING IS AWESOME, THIS WAS THE EFFECT I WAS LOOKING FOR, I'v seen it some years ago in the stanley parable, and i loved it. THANK YOU SO MUCH

RIP Brackeys

Up for a shder coding tutorial, and thank for such good tutorials

Yes do a separate video on shaders! Such effects and features are extremely important to know and learn when making any type of game. Do it definitely

omg, thank you so much for that screen cut out shader, that's the only thing i needed for my superliminal looking window

Hey Brackeys, could you please do a tutorial on Custom Shaders?

So twice now people have come into the Unity forums after following this tutorial because the implementation does not compensate for proper rotations. I cleaned the code up the first time, and since shared it again the second time. Here's the original thread when someone came in with problems: forum.unity.com/threads/portals.522231/ I removed your 'PortalTextureSetup' class because this honestly is just garbo adhoc code that shouldn't be used. I moved the render camera positioning to LateUpdate (which I saw several commentors bring up here as well). I used an event driven teleportation instead of the adhoc approach done in this video. And of course... fixed the glaring rotational issue. You should try rotating your 2 rooms when testing. Anyways, here's the git project I modified for it: github.com/lordofduct/PortalsDemo

Hands down the greatest tutorial that exists on KZfaq. Have been looking for a good tutorial on this for sooooo long!

You dont need to compute angles. You can apply the rotation in the same way as the position, just use quaternion multiplication and division instead of vector addition and subtraction. They are designed to do the equivalent thing in their respective domain.

Great Tutorial. How would you adapt to make it work in VR (where instead of having 1 camera A, you have 2 cameras left Eye, Right eye)

So, I'm trying to make this with VR. But apparently the code does not detect when the camera rotates on its X axis. (When I tilt my head sideways.). So sometimes the image through the portal stays put at a different angle. How could I change that?

That’s so cool dude I’m definitely gonna try that

Yes please we really need in depth tutorials on shaders

Shader would be really interesting i guess

Make a video on how to make shaders

i love the explanation at the start cant ask for something better than this, obvs there's probably some other ways but tyty

That's Antichamber in a Nutshell. well done. I appreciate all the video you're making.

i had a bug where camera a and b where rotated exactly to the oposite side of the portal, by that i mean if i was looking through the portal the cam on the other side was basicaly also looking through the portal, in this case if there where objects on the other side and i didnt ran into the portal i wasnt seeing them.... but i fixed it just by going into the "PortalCamera" script and at line 25 (in your video its line 18) i multiplyed "angularDifferenceBetweenPortalRotatoins" by 2 so the cam was twisted by 180° again, facing the same way the global cam was facing. and that basicaly removed that mirror effect on both cameras and instead showed me exactly whats going on on the other side. and you also got it wrong in your video brackeys, so i hope this fixes it. and it shows it the right way if both rooms have the same global world rotation and just the portal is rotated by 180°. i hope this helps some people out and SUPPORT BRACKEYS! because he is friendly and comes up with great ideas. :) i think i dont need to mention that i wouldt had be able to come up with the portal thing, mostly because am lazy^^.

This *barely works on beta 2018.3.0b7, there seem to be some issues with changing the transform.position of player with active Character Controller component. * There are major glitches on moving from RoomA to RoomB, oddly the other way works just fine.

I've been trying to think of a way to do this type of real time portal in a 3rd person/isometric setting. So war the best I can think of would be facing out the camera from room 1 as you get close to the portal, then once you step through the portal, expanding the area room 2 used to take up into the whole screen. I want to try to work this out but I'm super new w unity. Thank you for making cool videos for newbies like me!

If it’s not working even with a rigid body, remember to change wherever it says other.tag to other.name and make sure that is what your player is named. It took me way too long to figure that out but now it’s great! 👍

Shader tutorials would be awesome! I noticed on your render texture it looked like there was a frame of lag when the player moved. Wouldn't putting the "other camera" movement and rotation logic in LateUpdate fix this? Also why can't you just say transform.rotation = playerCamera.transform.rotation? Wouldn't that give you the same effect without all the complicated Quaternion math?

For rotation can’t we do transform.rotation = firstcamera.transform.rotation ?

Love this. Really great step for step. Took a while for me to follow (4-5 watch-throughs) because I wanted to generalize it into a reusable Portal prefab, but you went through everything with excellent detail and tempo so it was all totally doable. Thank you!!

I'm taking the "learn to code by making games" course. It's a good course for a beginer.

Yes :D Make sth with shaders :D :D

What if I want to have a different rotation on each portal? this only works if both have the same rotation.

I would greatly appreciate a video (or a series) on shaders from you, Brackeys. In almost every gaming project I'm working on right now, there's a point at which specific tasks would be that much easier or more effective if someone on the team could write shaders in Unity. I find them very complicated and scary, but I believe a video from you could really help me to get started with shaders in general.

Yeah I would love a video on getting started with shaders and shaders basics, and examples of what they can do.

You can see there's about 1 frame delay of the objects inside the portal, is there a way to fix this? It's more obvious on slower machines.

unable to download shaders

ALL HAIL BRACKEYS let his vedios live forever

cannot be more thankful

brackeys I download your sene and at the first look all is ok but if i go on the green place and I take the portal on the wrong way i go in the red place but the portal do not work any more. Can you help me or fix this plz. And a big thank you for all your video you help me so mush :)

Brackeys I have started working on a new game and I want my players to have a level editor we’re they can make their own level like in Geometry Dash but I do not know how, can you do a tutorial on a level creator for the players?

Love your tutorials😍 I watch at least one video in a day. Keep it on Brackeys

You do the best tutorials i just can't stop liking your videos

That is great! Many thanks for the work putting it together! Any recommendations on how to port this project to VR? I implemented it as is and on my VR game and the portal has a weird looking. Each eye camera is rendering the same portal camera and the render plane gets fuzzy in the VR. I believe one has to duplicate everything and select the eye camera where it gets rendered... is that right?

Why is the depth 24?

Just in time for a VR game i'm working on ... I downloaded the other project from the original video 3 days ago and was going to decipher the code to understand how it works ... Thanks a lot Brackeys for this video

Hello abjourn, I would just Like to thank you for all your help! You are the best programming tutor in the world!

is it just me or did this not work even tho i tried a million times and did exactly what he said? Just Me.

Awesome tutorial! There is a bug in your shader though, it breaks when the camera is rotated on the Z-axis. How can I fix this? Thanks!

You are a genius. That quaterinion stuff code was marvelous. Thank you!

Wish I watched this before I went and figured it all out myself... I didn't use the shader trick, since I don't write shaders often, and since I had portals at all different angles, within one continuous level, I had to do some math to figure out the proper position and angle for my portal camera... The annoying part was realizing halfway through that my portals only looked right when rotating around a single axis, so then I had to go back and redo all my math... Then unrelated I had a dumb issue with my jump script, since I use physics based inertia, but store that starting inertia for the sake of some complex double-jump shenanigans. So when my character got forcibly rotated when moving through the portals, if they were mid jump the direction of travel would get screwed up... In the end I'm glad it was just being done as an exercise, took way too long to get it running right without any bugs. If I learned anything from this experience at all, it's never to underestimate just how much a single design choice can influence and screw you later down the road...

should give credit kzfaq.info/get/bejne/n66hndaUzsy0nn0.html since its the exact same layout and everything

Does anyone know how to solve inconsistent collision detection? As it works but the colliders don't always register it.

Yes please have a series on shader writing!

Now if you are saying , holy crap ! What if my worlds are big ? Its simple : take a note from subnautica portals , if you didn't see em check em out . What you do is you put your portals into closed areas like caves ! This way you only load the cave on the render to texture and when the player cross the portal to the cave you start loading the new area ( or stream it )

95% of comments: Comments asking for a Shaders video 4% of comments: Vague comments asking for tutorials about something 1% of comments: Actual comments that talk about the video and are worth reading

Make a tutorial how to get your game on a phone

You've earned yourself a subscriber! This technique worked very well and I learned a lot more about quaternions while following along. I was even able to create an infinite corridor effect in addition to a portal by altering the portalteleporter script. Your videos are very high quality and you explain things properly and concisely. A tutorial on shaders would be nice as that sort of stuff is like ancient atlantean to me.

thanks for hauling me through my game production course

“It’s simple, just use the file I made”. Kind of defeats the purpose, if you’re not showing how to make this from scratch...

Thanks man! Now ı can use portal in my game and that looks cool ;)

You can not believe in how good time you did this video

The transport and rotation of player can be simplified in complexity by using quaternions directly instead of casting to angles. It will be a bit cleaner but also confusing for people who are used to thinking of angles as degrees rather than algebraic lenth. I suspect you can abuse lerp and transform definitions to skip the dotP too, as the result of the lerp will have the same properties as the dotP. q1 to q2 is the same as q2 to q1 this means you can just check if the lerp result is small enough. Because the maximum result is discarded, the minimum result will always be less than or equals to half a revolution; so if its less than lets say a quarter revolution you know its entering from the correct direction. Now this lerp itself is the Quaternion rotation you need to apply when rotating the player, so no need to cast to euler angles, all you need to do is set the Transform = receiving tansform and apply the lerp. Its something like 4-6 lines of code less. And it is fewer calls and cheaper math overall. If you experience fps stutters on tp, you can try this. Not that i think that is common, but the less time you need to complete the tp, the less strain it is on the cpu. If someone tries both please let me know if you could detect a performance difference. I dont have a portal game in works atm.

13:00 you will have a problem with changing resolution ingame, if you dont add an interface or eventsystem to register and hook the operation when the resolution is changed. :)

if anyone is having issues, I removed the if (playerIsOverlapping) from Update to it's own call and then just called that class when the player entered the trigger. Example: void Portal() is the new class with all of the code from update in it, minus the if (playerIsOverlapping) line. Then in OnTriggerEnter I call Portal() when other.tag == "Player' triggers it

Render Textures and Shaders are super powerful elements, please do a video explaining how they work!

This is sweet! Kind of similar to the 2d portal tutorial made. I also wrote a shader that ripples the portal view which adds a nice effect

If you have a camera that renders only some elements placed on the player camera, and add the shader and material and stuff, you can make an object that hides objects behind it. I used this for some projects to hide map objects that I don't want to see for windows and stuff

This approach will render things that are behind the portal in the other world, which you shouldn't see. Maybe this could be fixed with a replacement shader or by changing the clipping plane.

So that's how easy it is. I was searching for this everywhere like ~2 years ago and the only thing i found was a portal you could look trough but then just teleports you when you walk trough it and not let you walk trough it seamlessly. I thought it's just not possible yet but it seems to be rather simple.

Will you try to replecate Sebastian Lague's perfect portal?