You made it to 2022. And you're
interested in starting VR development. And today's video I'm going to show you how to set
up in Unity a brand new VR project, we're going to go through the basic setup, we're going to talk
about how to add in locomotion. So teleporting and just doing continuous move, and then also
a little bit of very basic intractable stuff. And at the very end, I'll show you where you can
download a template thanks to one of our amazing discord members where you can just click on it,
and it will do all of the things that I'll show you in this video. And go ahead and start you with
a perfectly setup project. So you won't have to go through this process every single time you start a
VR project, which is absolutely amazing. So let's jump into it. We're in my unity hub. And over
on installs, you'll see that I have the latest unity version installed. And that is 2021. Point
2.7 f1. And you'll also notice that I have Android build support and Windows build support downloaded
something to keep in mind as you're developing your VR apps is if you are running off of a Mac
OS or a Linux OS, you are not going to be able to play test your game or app or whatever you're
building through unity, you're gonna have to run a build to the Android device that you're building
for, and test that way. So it takes a little bit longer. If you're using a Linux or a Mac device.
With Windows, it's super easy. As long as your device is plugged into the computer, you can test
right there. And to get these modules installed, all you need to do is click on these three dots,
add modules, and then make sure that Android build support is downloaded. So this is for standalone
specific headsets. And Windows build support is needed for the PC headsets. So let's jump into
projects and start with a brand new one. So I'm going to choose again 2021 point 2.7 F one is
the latest unity version. 2022 is still in beta. So that's why I'm not talking about that one
right now. And then you're given a VR template from unity. But the problem with this one is it
doesn't have the XR Interaction Toolkit in it. So if you start with this one, you're going to have
to go through and change a whole bunch of settings anyway. So I usually just like to start fresh down
in the description, you can grab the link to the template that our community has made for VR, which
has the XR Interaction Toolkit and everything you need already built up for it. So let's start with
a 3d project. And here we go brand new project. First thing we need to do is set up a bunch of
settings so that when you try to run your program and actually goes to the headset instead of just
trying to play normally. So let's go up to Edit and project settings. And then all the way down
to the bottom XR plugin management and install XR plugin management. This is the system that kind of
does all the passthru stuff of between, you know a normal, all the Unity things and XR and you'll see
that I have an Oculus option, an open XR option and a unity mock HMD option. These three are
packages, and most headsets are moving towards an open XR type package, which basically just says,
Okay, I can give one input. And it will translate it from a whole bunch of different headsets and
controllers and everything because they all have different buttons and whatnot. So open XR tries to
standardize all of the software. Essentially, it's kind of like a middle layer that helps translate
between unity and all of the headsets. So instead of having plugins for Oculus and Steam VR, and you
know, whatever other standalone headsets come out, we just have open XR, and that kind of covers all
of them. So I'm going to check open XR, and it's going to download a package into my Unity project,
you'll notice that I'm in the PC tab as well keep in mind that all of the boxes you check over here
are going to be PC specific. When you download open XR, it's going to automatically change your
input mode from the old input system that unity was using to their new input system. So it's just
going to prompt you for that. So just click Yes, and it's going to restart your unity project.
When it comes back up. You'll notice that open XR is now checked in you have a warning symbol
right next to it. And if you hover over it, it says your project has some settings that are
incompatible with open XR. So if we click on the warning symbol, it will give us information for
every issue that we have in our current project. And right now we only have one issue and that is
we need to add an interaction profile. So what headsets are going to use. So if I click edit,
that will bring me to this page, which I can just get to by clicking over on the side and open XR.
So we have a new open XR page here you'll see that we have interaction profiles that are empty and
an interaction profile is really just what kind of headset controllers are we going to end up using.
So Oculus Touch is the obvious choice. Also, if you're building for a valve index, you want
to add that in also the HTC Vive as a controller profile. So you'll just want to make sure you have
all of these included of controllers that you're planning on using for your particular application.
Something else to keep in mind on this page is the render mode so some people will have issues
with error when you're running your project, it will only display in one eye. And that can be
fixed by swapping the render mode from single pass instantiated, which essentially just takes one
picture of your scene, and then duplicate it and puts that picture in both eyes, or what we can
do multipass, which means it basically does to render calls. So one render call for one eye and
one render call for the other eye and then puts them together, then that is a little better for
VR, as far as visuals go and everything, but it requires a little more performance, because you're
essentially rendering your application twice, one for each shot. And we also want to set up
the Android version for all of this as well. So go back to XR plug in management, and then
we're going to click on the Android tab. If you don't see the Android tab, that means you don't
have the Android module installed. So you need to go back to your unity hub and add the module
to whatever version of Unity you have installed. And for this one, we're actually going to choose
Oculus, because for some reason, inside of the Oculus quest using a standalone app, when you try
to run an app via open XR, it plays it in like a theater mode. So the game is actually in 2d, and
you're sitting in your Oculus Home environment, it's very strange. And the simple fix for that is
just swapping your plugin provider over to Oculus. And as new headsets come out that are not Oculus,
you'll want to swap over to open XR as well. And so you'll just have to run builds for both, it'll
be kind of annoying, but you just have to uncheck Oculus and recheck open XR to run to anything
that's not an Oculus headset that is standalone. So this Android tab is for any headsets that
are going to run your application stand alone, not using a PC. And you'll see that we also got an
Oculus page here. And Oculus by default is set to multipass. You can also set your target devices in
here as well. So we automatically have the quest and quest to targeted if your application is not
going to be able to be run on quest because it's a little more performance, you might want to uncheck
this, just to make sure it doesn't get installed on someone's quest and you know, just not work and
then you get bad reviews. So that's all we need out of the project settings right now we will come
back to this but at the moment, we are set. And if we go back into our Scene view, you'll also notice
in the Project window, we have a new XR folder, which just has basic settings and stuff. Alright,
so now we have XR so now unity can can communicate with our headset. But how do we know what the
headset is saying? How do we translate those inputs into actions in our game. And to do that
we use the XR Interaction Toolkit, we can download that via the package manager. So let's go to
Window Package Manager. And you'll see currently we are inside of packages in project and you'll
see that the open XR plugin is in here because we added that via the Settings and also the XR
plugin management package is in here as well. And so in order to download the XR Interaction
Toolkit you use to be able to go to unity registry and as long as preview packages were enabled, so
going to this advanced cog here, clicking advanced package manager settings, enable pre release
packages tick that box say I understand that these are in pre release and not fully released yet and
that used to make all of the preview packages show up inside of the package manager. But no longer
does. For some reason, Unity just updated their package manager and does different things.
Even inside of VR. If we look inside of there, we only have Oculus XR and open XR which we have
both of them installed in our project already. So the new way to add the XR Interaction Toolkit
is going up to this plus icon up here in the top left corner, and then going down to add package
from get URL and then it'll allow us to type in a URL and that URL is calm colm.unity.xr interaction
toolkit hit enter and it will automatically add in the XR Interaction Toolkit. It's like
you just have to know the secret word. Also, the XR Interaction Toolkit recently got a major
update. So if you have a project that uses the 1.0 version, you will need to make a backup or just
not upgrade your XR Interaction Toolkit. While you're building on your project, this new version
is 2.0. And it changes some things renamed a lot of things. So it will break your project if you
are upgrading from 1.0. And that is the reason for this pop up. And so if you have an empty
project like we do, or already have a backup are not afraid of, you know, going through and fixing
some things just say I made a backup and go ahead and add this. And now we have the XR Interaction
Toolkit which will give us a lot of interactions that are pre setup for us, which is super nice.
This was recently updated on December 20 2021. So this is a very new update. Also, we will want to
download the sample package that it gives us. So default input action so just expand the samples
drop down and click on Import next to default input actions. This is going to set up a lot of
the input actions that we're going to end up using and it's nice because it'll just you know, pre
configure all of it in the in unities new input system which is super helpful saves us a lot of
time and then back in our main screen here you'll see that we now have a couple more folders so we
have XR array and we have the samples package XR is just the XR Interaction Toolkit and sample
OLS is the sample inputs that we installed. So just navigate down to the bottom folder,
there's a lot of folders this gives us five pre setup input action scripts. So this one is for
continuous move this one is for continuous turn, this one is your left controller, this one is
right controller and you also have the snap turn provider. All of these are just actions based on
those particular configurations, we want to add all of these to our presets. So there's buttons at
the top of each one. So just go through and click all of those to add the presets and we also get a
pre setup input schematic as well. So you'll see we have the head mounted display the left hand
and right hand which have different actions so activate is pushing the trigger and we have select
which is pressing the grip those are the two main ones. And you also have a bunch of teleporting
and rotating and tracking type things in here. That was one more setting we need to do and then
we can start adding things to our scene finally. So let's go back up to edit and Project Settings
and then over here on the left side we'll want to go to preset manager and you'll see that all
the presets that we just added will be here so you should have five total and on the presets
that are the left and right hand controllers for some reason when you add these it does not
differentiate between left hand or right hand so you have to add left and right into the filter
on the appropriate one. So just type in the word left and right capitalization doesn't matter on
to these particular filters and everything should be set up settings wise now so in our scene, let's
go ahead and set up a very basic scene for you to get up and running with first I'm going to add a
plane onto the ground all this the ground and then right click and you'll see we have an XR section
here and if you installed everything correctly, you should see all of these options here and they
may change a little bit when unity updates things because they are always continuously updating the
XR stuff so if something does not work for you, they probably updated something so just join the
discord and ask questions and we can help you out so we've got a lot of stuff in here it used
to be called the XR rig action based in which has now been updated to the XR origin action
based in this is your full setup controller. So we're going to find XR origin action based
action base is important because action based also has your controllers in it XR origin is just
the head just your head mounted display. So XR action based want to add that to our scene, it's
going to add an XR origin and an XR interaction manager on the interaction manager, we want
to add a component so we're on the inspector, we're going to add input action manager,
and we want to add the action assets that we downloaded from the samples. So I'm just gonna
hit this plus sign and then click on the dot. And the only option we have is the SRI default
input action. So I'm going to add that one, and that is all set up. And then we click on
XR origin, you'll see that they have removed the green box that used to be on the XR rig.
But you can see the camera in which direction it's facing. It always goes with the blue arrow,
and then they have renamed the script from XR rig to XR origin. So that's one of the breaking
changes from updating from 1.0 to 2.0. And then inside of the origin, you have a camera offset.
So that's how offset you are from the floor. This is updated automatically. So don't move this.
And then you have the main camera, the left hand controller and the right hand controller, you
see that the actions are preset up as well. So just make sure that the right hand has right hand
actions and the left hand has left hand actions. And if you see references in all of these,
that means you set up the presets correctly. If you don't see presets in here, or you have
left hand things on both are and things on both just delete your XR origin from your hierarchy.
And then go through make sure you added all the presets correctly and added the left and
right hand filters and then re add your origin and it should set everything up correctly.
So now let's run it. So if you have a PC, this does not work on Mac or Linux at the current
time, you can hit this play button in here make sure that your quest if you're using a quest
is in link mode, if you're not using a quest, just make sure that your headset is attached
and recognized by your computer and turned on and all that and then when you hit play, it
should run your scene. Also one little trick, I like to run the cable or my headset through this
back little loop on the back of the quest and then plug it in. And that kind of helps the cable from
you know all the weight of the cable resting on and kind of trying to bend it. So just run it
right through the back of the headset there. Little little tip. You also want to make sure
you allow USB debugging on your device. And then we can hit play you should be in the scene and
you should have two lasers that move with your controllers. So as I move my head around, the
world stays in place and I can move controllers and they both move separately and I have one for
each. congratulations you have successfully made your own VR app but you can't do much. So first
let's get you moving around. So we want to add a locomotion system in the The hierarchy we're
going to right click Go to XR again and then add a locomotion system. Also action based everything's
action based if you see something that's device based that's using the old input system is going
to be updated by adding a locomotion system, you'll see that we have a locomotion script in
here, the transform doesn't matter where it is, this is just a global component locomotion script,
which will automatically find your XR origin. So you don't necessarily need to drag and drop
that over here, but you can if you want to, we have a teleportation provider. So this is
if you're using teleportation, specifically, then this can be on and then we have a snap turn
provider already set up and you'll see that the actions in here are already configured because we
added that preset and then in order to teleport, there's one more ingredient you need to do.
And that is you can either there's two things, you can either right click in the hierarchy, go to
XR, and then teleportation area. And that will add in let me turn off the ground. And that will add
in a little plane with a teleportation area script on it. This allows you to move around anywhere
on this plane going to turn that one off, turn our ground back on, or you could just add the
teleportation area to you know, whatever you want, the teleportation anchor that you saw, is being
able to move to one specific spot. So that's like if you have a bunch of seats in an auditorium
and you don't want people to like you know, kind of sit in the middle of seats, then you have
a teleportation anchor on each seat. And then when you teleport to that particular spot, you
can't teleport like you know, in between seats, if that makes sense. And it teleportation
area allows you to teleport anywhere on that area. Since our red lasers turn white
when they're pointing at something that we want to click on and the ground is white, I'm
going to change the ground materials. So I'm going to right click on assets create a folder
called materials, and then right click on that create and then a material and this is going to
be called Ground mat. And we'll choose kind of a grayish color and make sure you drag and drop it
onto the ground. So now if we hit play go in here. All we did was add a teleportation area to the
ground and a locomotion system to our scene. And now when I press the grip button, I can move
around on on the ground. And I can also turn by Moving the thumbstick of either of
my controllers. So left one and right one allow me to snap turn, what if you're going
for a more realistic kind of movement. Let's go back to the locomotion system. And I'm going to
uncheck the teleportation provider component and the snap turn provider collapse both of those
make sure you keep the locomotion system on and we're going to add a continuous move, make
sure that you use the action based one. And then we also want to add a continuous turn also action
based and you'll see both of these have a left hand and right hand option. And a continuous
move will allow you to move around like it's a first person shooter game. This causes motion
sickness, so it is good to have both options in your game when you're making one. Now there
is one change you need to make after you add both of these and that is that both thumbsticks
are controlling both actions, which is not going to be very good. So you need to make sure you
designate which one is controlling which action. And usually for most games, you move around with
your left thumb stick and you turn with your right thumb stick so make sure continuous move has left
hand checked and right hand unchecked and then the opposite for continuous turn make sure that the
left hand is unchecked and right hand is checked. That way you move with your left turn with your
right so now just by adding those two components and turning off the other, if we hit play, I can
still point at the ground or my laser still think it's a valid teleportation area because it didn't
turn the turret teleportation area component off. But if I tried to teleport with my grip there,
I don't move I don't do anything, I have to move around with my thumb stick and the speed
setting can be changed in the component itself. And then I could turn around with my right thumb
stick and this is a continuous turn. So nice and smooth. Also very motion sick if you are not used
to VR, and you can get used to motion sickness. So like you like goes away after you do VR enough.
So stay strong, you can get over it. Alright, we're getting to the end of that tutorial, I want
to show you two more things. One of them is how to add in grabbing directable. So how do you pick
things up. And then the second thing is how to download and install the template that basically
has all this setup. So when you start projects, you just click on I want that template and
it sets all of this up for you. So let's grab something. So I'm going to right click in
the hierarchy, go to 3d objects and create a cube on the Transform. I'm going to reset that
back to the center. And we want to scale that down to something like point two issues good. Also,
there's a new locking scale. So now if you scale one, it scales all of them which is super nice.
And then let's kind of drop this in front of us. And in order to pick this box up. All we need
to do is add one component and that is the grab intractable that will automatically add on a
rigid body and if you want it to be as smooth as possible, you want to change the collision
detection to continuous dynamic because you'll be picking this up and moving it around likely and
growing it so it's going to be moving quickly and then we have the grab interruptible component
and again for the smoothing type thing we went to smooth position and smooth rotation as well,
those are not turned on by default because it's a little more performance intensive. And then
here is also where you can specify if you want instantaneous movement, which means that every
time you move your hand, the object basically just gets teleported to the next spot for that
frame there is kinematic which it takes velocity into account. So it kind of slowly moves it in
instead of just teleporting it. Or you can do pure velocity tracking, so you can't move it
through walls or whatever, which is, you know, a more realistic kind of movement. So I usually
go with velocity tracking. So let's play that. So we had, all we did was add the cube, add the
grab interactable and then change a few set. And now I can point at the cube, my laser pointers are
still pointing up turning up as white. And then I can grab press the grip button, and it picks the
cube up. And you'll see that I can turn with when I turn my hand and I can throw it as normal
physics applied to it. And as long as I'm in range of my laser pointers, I can grab it again
and throw it normally there is one issue though, is when I grab it, and I move my thumb stick, so
I'm walking, but I'm also moving the cube around as I'm walking around, which is super annoying,
and kind of a weird default thing that they added. And I'm not quite sure why they added this in. But
it's quite odd and very annoying. So if you run into that issue, all you have to do is go to the
XR origin and then on the left hand and right hand controller, so I'm going to hold down the control
button on my keyboard and click the other one. So now I have both selected and then we want to not
the XR controller but the RE interact or which is allowing you to grab this cue we want to uncheck
anchor control anchor controls what was allowing you to move the cube with your thumb stick, which
might be good for some games, but for most games that I can think of, we want to just leave that
unchecked. So if the object you're holding is moving, when you're moving, just uncheck anchor
control. And there we go. You can move around, you can pick up things, you can throw things, you
have a pretty functional VR app there at least a good start, if you're running off of a PC, all
you have to do is hit play like I have been doing to test your application. If you're running off of
a Mac or a Linux device, you'll want to go up to File Build Settings, make sure you add the open
scene that you want to build and then swap over to Android, make sure your device is plugged in,
switch your platform over to Android and then build and run to your device. It will take a few
minutes to build every single time, which is kind of annoying and why I recommend using a PC for
development. But it can be done you'll just have to build and run every time you want to test for a
Mac or Linux Device. All the settings we have set up in here will allow you to run to the Android
devices. And this is also how you share the game with your friends to so you run a build and then
send the dot apk file or the whole folder with the dot exe file. If you do a Windows build to
all your friends in order to play your game, no, let's add that template. So you don't
really have to do this anymore. You can just open up a new project and everything be nicely
set up for you. So there's a link down in the description. I'm going to do my best to make sure
that link stays updated. If unity ends up updating to a new version don't just come back to this
video and there'll be a link down the description and hopefully that link will be updated if it's
not just ping me on Discord. And if you're not in the discord join the discord because that's the
whole reason that this template came about because we have an awesome discord community. It's super
fun, we answer any dev help questions, anything that you are struggling with. Or if you just want
to share your project that you're working on, join the discord. It's super fun. So there is a
GitHub link down in description totally free for this template. And that will bring you to this
particular page and you will want to download this dot tgz file, click on it, add it to your
downloads and then on your PC will want to go or your device you'll want to navigate to your unity
folder in like the Program Files or I'm not quite sure what the equivalent for Mac is. But on PC it
is Program Files and then Unity will want to go to hub editor and then choose the particular version.
You want to download this template for this one. As of right now I know works for 2021 point 2.7
F one and then we'll go into the editor folder data folder, Resources folder, package manager
folder and project templates. And here is where you'll want to paste your dot tgz file. So
we'll go back to downloads cut this file, click the back button to go back to the folder
we're just and paste it now you'll need to restart unity hub so it is usually hidden. Even if you
have it closed here it's going to be hidden in your toolbars. So make sure you quit unity hubs
right click Quit unity hub. And then let's open that back up. And let's make a new project new
use the version and here we go. We have our VR template and I'm just going to call this new
unity project because I don't care. And here we go. Here's our template project. So it's going
to start out with a basic seen that just has an origin and interaction manager but you'll see that
the input action manager is all set up we have samples already installed. If we go to the project
settings you'll see that we have all of our resets are already in here and all of the settings
are already up to date multipass is already being used. Everything is all set up in this template,
we are going to do our best to make sure this stays updated for everyone. And I really hope
this video helped if you have any more questions or just want to hang out or play some games with
me or whatever, then join the discord because it is super fun. We are planning on doing a
game jam closer to the end of this month that I will be announcing shortly. So stay tuned
for that if you want to get a private meeting with me every month or you want access to the source
code of any of my projects, then feel free to support me on Patreon. I really appreciate
everyone who is continuously supporting me it's been super nice. And in the meantime, in the
comments down below let me know what projects you guys are planning on making for VR or what other
tutorials or videos you want me to make. I am super excited to you know continue on this journey
and I'm going to keep making up to date videos. If something in this video goes out of date check
in the comments. It's probably answered down there or in the discord or I'll be making another
update video shortly most likely if unity keeps changing things the way they do. Anyway, thanks
for watching. I'll see you in the next video.
