WEBVTT

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Game Basics
Intro to Unity

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GCC Academy

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Hello everyone

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Hello, this is Tak Kwang-wook, in charge of Unity Game Programming

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In this lesson, we will explore why we need to use the Unity engine

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from the perspective of the content development process

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We will learn how to install and operate Unity by

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understanding the content creation process,

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installing the Unity engine and creating a project,

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and examining Unity’s screen layout and learning its operations

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Let's practice editor manipulation by creating a simple chair object

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Overview of the Unity Engine
and Installation

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To understand the Unity engine,
we first need to explore the content creation process

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As shown in the diagram, the process begins

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with the proposal and planning stage,
where the feasibility of development is reviewed

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Then, prototyping is used to validate the proposal and plan

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If the result is positive, the full-fledged project starts,

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with step-by-step schedules being calculated

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Following alpha and beta testing for commercialization,

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the product is eventually released to the market

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A content requires this many processes before it is released

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While the quality of the content is essential,

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development costs are equally significant

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Delays in the schedule, caused by

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either internal or external factors, can heavily impact

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production costs and burden developers

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Historically, most development companies
followed a sequential process

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like this diagram

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The planner completes the plan

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and hands it to the artists and programmers

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Art resources are created,

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and then

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passed to the programmers,
who then proceed with programming tasks

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This sequential approach often caused problems,

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as each stage depended

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on the completion of the previous one

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This causes a heavy workload for programmers
towards the end of the project,

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since other teams rely on programmers
for incorporating changes or modifications

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The workload is unevenly distributed over the project timeline,

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resulting in an overload

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Programmers, as well as planners, face

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an increasing workload during the early stages of a project

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Following the completion of the planning stage,
the art team’s workload increases sequentially

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In early stages, the planner carries the workload

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Mid stages, the artist bears the burden

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And late stages, the programmer’s workload peaks

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This sequential structure is inherently inefficient

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The diagram illustrates an improved parallel development model

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For efficient development, as depicted in the diagram,

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tasks should not be concentrated at specific stages

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but rather evenly distributed throughout the project

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To achieve this,

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the verification and application of results

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for each discipline should proceed independently,

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without dependency on other teams

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This approach leads to improved quality of the output,

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shortened development periods,
reduced production costs,

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and ultimately enabling more efficient development overall

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Unity Engine allows for a parallel production method

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that improves efficiency in content development

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The structure of Unity

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is similar to Lego

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Understanding Lego building makes it easier to understand Unity

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Lego uses blocks to build its basic objects

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Unity also uses basic elements called components

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that are combined to create a game object

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When creating actual content, it is done as follows

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Each department creates components
corresponding to Lego blocks like this,

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and then they create game objects

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By creating Lego blocks for each department,

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parallel development by department becomes possible

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Then, after creating objects with Legos,
they are arranged and packaged

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In Unity, a similar method is used

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Game objects composed of these components
are arranged in space,

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to create one scene

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And the Lego series is structured as Lego packages
according to the components

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This Lego package can be seen as part of a Lego series

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In Unity, according to the components,
it is divided into several scenes,

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and all those scenes are part of a single project

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In conclusion, Unity’s structure is like the picture shown,

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and you can see that it is assembled in a way similar to Lego

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The whole structure consists of individual scenes
within a large project,

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and within those scenes, there are game objects,

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which are made up of components,

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which is how the project is structured

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Using this engine, which allows
for department-specific creation similar to Lego,

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the process proceeds as follows

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First is prototyping

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The programmer does not

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wait for the art resources but,

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based on the design intention

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instead, uses basic shapes

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supported by Unity

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This is called prototyping

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It allows simultaneous work by each department

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Even when real resources are used from the beginning,

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there is a high chance
that they will be discarded during development,

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which leads to an increase in development costs

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By prototyping, the design or content concepts

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can be validated first,

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and then applied, which is very efficient

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After validating the design through prototyping,

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and receiving resources from the art team,
the resources can be swapped out,

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which improves the quality of the content

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The final external verification is the alpha version,

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and after optimization, when the content runs smoothly,

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it becomes the beta version

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And once all processes are completed without issues,

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the service is launched to the users

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So the development progresses

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in the order of prototyping, alpha version,

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and then the beta version in Unity engine

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Until now, we have discussed the development methodology

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Now, let’s start with the Unity installation and go step by step

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To install Unity, we go to the Unity website

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We need to sign up

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and log in on the website

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Click the user icon on the top right to sign up and log in

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On the right top

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I'm logged in already,

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so we see the ID here

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You must see that user icon there

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Click on it to sign up and log in

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To use Unity, you have to install Unity Launcher

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Go to Download in the center

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Or you can click on Plans to download it

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Click Download to go there

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Click on Plans

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And you can buy the version that suits your needs

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We'll go with the second, Unity Personal,

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which is free

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Let's download this free version

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Now,

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you see the same screen as when you clicked on Download

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So click on it

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Now we have the installer for Unity Hub

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Double click on it to install

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Then it installs the hub for you

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You will be prompted to install the Unity Editor

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The program we installed

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is not the Unity Editor itself,

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but Unity Hub,

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which manages all the Unity projects we create

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Think of it as a launcher that manages the Unity Editor

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So for that,

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we'll be using Unity Engine

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But we have no Editor

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So this window allows you to install it automatically

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Let's close the window

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Let's skip this

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Let's install it manually

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If you're not logged in,

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it will say that you should sign in

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If you're already logged in,

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you'll see your own account on the top left

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We have Install on the left

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The Install section is where you can initially install the Unity Editor

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This section allows you to manage the Unity Editor by version

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If you click here, you’ll notice that nothing is listed at first

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Because there’s nothing,

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the Install Editor button is activated

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You can click to install here,

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but there is also a blue Install Editor button
in the top-right corner

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If you click on this button, you can download
the Unity Editor in the version you want

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You’ll see several options,

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including Unity 6 Preview

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and, below that, Unity 2022.3.50 LTS

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For now, we’ll install

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the second option, 2022.3.50 F1

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You will notice that the LTS version is checked

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LTS stands for Long-Term Support,

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which is

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the stabilized version of Unity

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Unity has three types of versions

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The first is the Preview version,

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which is not officially released

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but is a test version showing

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new technologies and interfaces

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Currently, Unity 6

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is available as a preview

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After passing through the preview phase
and if it’s found to be stable,

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it’s officially released without the Preview label

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There,

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if Unity 6 weren’t a preview version
and had been officially released,

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it would be available simply as Unity 6

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Eventually, bugs may arise

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As bugs are found

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and then fixed,

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the version will continue to evolve

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as time passes

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Eventually, it will reach a point

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where there are no issues remaining in development,

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and Unity will consider that version stable

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At that point, Unity will label it with LTS

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to indicate that it’s ready for long-term support,

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saying, this version is stabilized,

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and if you create projects with this version,

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it will be highly stable

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So this is the LTS version Unity releases

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There are three types of versions

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For our learning purposes, we will use the LTS version,

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the stable version

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However, even in the stable version,
there might still be bugs

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Bug fixes will continue to happen

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For example, in the second part of the version,

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2022.3, this can change significantly

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when we are progressing

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with projects or in our learning

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The first numbers may change,

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and some features may be unavailable
or the interface may change

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However, the version number after the decimal, like 50f1,

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will gradually get fixed with updates

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So, as these bug fixes are applied,

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the version number might change,

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going from 40, 41, 49, and 50

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So, until I prepared this video,

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I was using version 3.49,

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but just recently, it was updated to version 50

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Therefore, for the first two digits in the version,

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you don’t need to worry about them at all

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It won’t cause any problems with your learning

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So, for the version 2022.3,

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the numbers up to 3, no matter what version you use,
won’t be a big issue

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Whether it’s 49, 50, or even 51 later on,

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it won’t affect your learning

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So, I will install the LTS version, 3.50f1

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Now, I’ll click the Install button

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When you do, several options will appear,

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asking what you would like to install

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The first option is the Development Tools,

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specifically Visual Studio Community 2021

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This is checked by default, meaning it will be installed

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This Visual Studio option is needed

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because when you create functions using the Unity engine,

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you’ll write code

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using the C# programming language

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Visual Studio is the program used to write that code,

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and it will be installed when you install Unity

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If you don’t have Visual Studio, make sure to check this option

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Next is the Platform section

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Here, you can choose

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if you want

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to create applications

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that run on Android or iOS,

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things like these

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You can select the platform depending

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on the project you’re working on

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If this box is not checked,

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it will assume you’re creating applications for PC

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You can add these platforms later,

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so I will proceed without checking them for now

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I’m going to cancel the Visual Studio installation

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since it’s already installed on my system,

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and I will install the Unity engine instead

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I'll Install

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The download will begin,

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and you will see a progress bar at the bottom of the launcher,

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showing the download status

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Once the progress bar is full, the installation will be complete

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This might take a while

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It is complete now

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It took a while

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Once the editor installation is complete,
you’ll see a box on the right side

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of the Install section indicating the installation is finished

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Now, you can start using the Unity engine
to work on your projects

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Let’s create our first project.

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If you click the Project category on the left,

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00:17:24.899 --> 00:17:27.500
you’ll see an empty screen on the right

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Right now, there’s nothing there,

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but as you continue learning

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and create projects,

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00:17:33.780 --> 00:17:36.330
you’ll see a list of them appear here

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00:17:36.619 --> 00:17:40.420
Currently, my language is set to English,

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00:17:40.420 --> 00:17:43.420
but when you first install it, it might be in Korean

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In that case, you can change it

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by clicking the Preferences button
at the top of the launcher

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00:17:50.940 --> 00:17:53.619
here, you’ll find the Appearance option,

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00:17:53.619 --> 00:17:54.921
ans here,

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00:17:55.369 --> 00:17:57.780
it says English now

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00:17:57.780 --> 00:17:59.820
If your is Korean,

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00:17:59.820 --> 00:18:01.875
it will say so, Korean

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00:18:02.100 --> 00:18:05.997
I prefer English, so I'll keep it

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00:18:06.739 --> 00:18:09.641
That's where you can set the langauge

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00:18:09.940 --> 00:18:15.945
And speaking of preferences, there is a section for licenses

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00:18:16.220 --> 00:18:23.485
In my case, I currently have the Personal license registered

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00:18:24.380 --> 00:18:28.820
If you don’t have a license registered,

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00:18:28.820 --> 00:18:34.288
it’s a good idea to get a free license by clicking Add

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00:18:34.739 --> 00:18:37.260
If you encounter issues where the project

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00:18:37.260 --> 00:18:41.059
doesn’t open or there are problems with the license,

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00:18:41.059 --> 00:18:43.619
you can go to the “Preferences” section

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00:18:43.619 --> 00:18:47.139
and click the Add button under the License section

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00:18:47.139 --> 00:18:48.786
to obtain your license

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00:18:48.899 --> 00:18:52.597
Now, let’s get started by creating a project

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Click on the Project category on the left,

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00:18:55.619 --> 00:18:58.456
and then click New Project on the right

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00:19:00.100 --> 00:19:02.579
When you click the Create Project button,

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00:19:02.579 --> 00:19:03.500
the screen will change

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The launcher screen will update

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At the top, there will be a button

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00:19:11.220 --> 00:19:14.019
allowing you to choose the engine version
for the project you want to create

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00:19:14.019 --> 00:19:17.139
If you’ve installed another version of the engine,

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00:19:17.139 --> 00:19:19.668
you can select the version you want here

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00:19:19.940 --> 00:19:23.980
Since I’ve installed version 2022.3.50,

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00:19:23.980 --> 00:19:27.405
this version is automatically selected for me

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00:19:28.687 --> 00:19:30.980
Now, in the center,

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00:19:30.980 --> 00:19:34.100
you’ll see several options to configure

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00:19:34.100 --> 00:19:38.899
One of them is the 3D Built-in Render Pipeline,

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00:19:38.899 --> 00:19:41.299
which is currently selected

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00:19:41.299 --> 00:19:42.378
It's currently selected

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00:19:44.100 --> 00:19:47.540
The key options to pay attention to are the Universal 3D

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00:19:47.540 --> 00:19:50.339
and High Definition 3D pipelines

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00:19:50.339 --> 00:19:52.934
These are the three options you should focus on

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If you’ve seen tutorials on YouTube or elsewhere,

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you may have heard terms

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00:19:59.339 --> 00:20:01.657
like URP, HDRP, or Built-in Pipeline

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00:20:01.980 --> 00:20:03.980
What these refer to

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00:20:03.980 --> 00:20:08.820
is how 3D objects in the graphics space

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00:20:08.820 --> 00:20:12.820
are rendered onto the screen

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00:20:12.820 --> 00:20:16.677
These three methods are the primary options

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00:20:17.059 --> 00:20:18.901
The 3D option is the traditional method,

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00:20:19.139 --> 00:20:23.424
the one used in the standard Unity engine

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for displaying 3D objects

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00:20:25.139 --> 00:20:26.820
The Universal 3D Pipeline or URP

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00:20:26.820 --> 00:20:30.139
is a more advanced method

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00:20:30.139 --> 00:20:32.660
than the Built-in Pipeline,

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00:20:32.660 --> 00:20:36.339
providing better graphic quality

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00:20:36.339 --> 00:20:38.931
due to an improved calculation method

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00:20:39.500 --> 00:20:41.459
The High Definition 3D pipeline

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00:20:41.459 --> 00:20:47.139
offers even higher-quality graphics than URP

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00:20:47.139 --> 00:20:50.757
It’s a calculation method
that provides the best graphical quality,

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00:20:50.939 --> 00:20:52.819
suitable for projects

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00:20:52.819 --> 00:20:54.780
requiring high-end hardware,

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00:20:54.780 --> 00:20:57.620
better graphics cards,

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00:20:57.620 --> 00:21:00.740
and cinema-quality visuals

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00:21:00.740 --> 00:21:03.914
High Definition 3D is suitable for these

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00:21:05.339 --> 00:21:08.100
So, if we look at the three major types,

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00:21:08.100 --> 00:21:09.980
we can divide them into three categories

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00:21:09.980 --> 00:21:12.268
Since this is for learning,

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00:21:12.939 --> 00:21:15.939
we’ll select the 3D Built-in Render Pipeline,

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00:21:15.939 --> 00:21:21.019
which is the traditional method

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00:21:21.019 --> 00:21:25.161
for rendering 3D objects in Unity

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00:21:26.060 --> 00:21:29.583
With the Built-in Render Pipeline 3D selected, on the right side,

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00:21:30.778 --> 00:21:34.060
you can choose the project name

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00:21:34.060 --> 00:21:38.955
and the installation path for the project

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00:21:39.180 --> 00:21:42.100
For the name, I’ll just keep it as My Project,

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00:21:42.100 --> 00:21:48.339
and for the location, I created a folder
called Unity Projects on the C drive

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00:21:48.339 --> 00:21:50.499
and saved the path there

348
00:21:50.499 --> 00:21:54.112
If you click the folder button on the right,
you can specify the path

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00:21:54.499 --> 00:21:57.540
Below that, there’s the option to Connect to Unity Cloud,

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00:21:57.540 --> 00:22:01.379
which would allow you to use Unity Cloud,

351
00:22:01.379 --> 00:22:05.180
but this isn’t necessary, so I’ll uncheck it

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00:22:05.180 --> 00:22:08.780
Now, click Create Project at the bottom to create the project

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00:22:08.780 --> 00:22:11.708
As of the time of editing this recording,

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00:22:16.151 --> 00:22:23.151
Unity 6 has been officially released as an LTS version

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00:22:23.151 --> 00:22:27.011
However, when creating a project with Unity 6,

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00:22:27.012 --> 00:22:31.274
the URP version is selected by default,

357
00:22:31.274 --> 00:22:37.703
and if you want to use the older Built-in 3D Core version,
you will need to install the corresponding template separately

358
00:22:38.391 --> 00:22:41.831
Until the 2022 LTS version, the situation was the opposite

359
00:22:41.831 --> 00:22:44.831
The Built-in 3D Core version was the default,

360
00:22:44.831 --> 00:22:49.805
and if you wanted to use the URP version,
you had to install the template separately

361
00:22:50.831 --> 00:22:55.046
Now, let’s briefly look at how to install the template

362
00:22:56.511 --> 00:22:59.590
First, choose your project,

363
00:22:59.590 --> 00:23:01.991
then select New Project to create it

364
00:23:01.991 --> 00:23:02.711
When you click this,

365
00:23:06.560 --> 00:23:11.464
If we look at the current version, 2022.3 is selected,

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00:23:11.465 --> 00:23:17.459
but if the editor version is changed to version 6,

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00:23:17.459 --> 00:23:19.862
the default installed version will change

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00:23:19.863 --> 00:23:23.687
to the Universal 3D Core version

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00:23:23.879 --> 00:23:25.132
This is the URP version

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00:23:25.133 --> 00:23:28.224
If you look at the detailed information on the right,

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00:23:28.225 --> 00:23:31.014
it specifies that it’s the Universal Pipeline URP version

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00:23:31.560 --> 00:23:34.009
So, we can see that the URP version is selected by default

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00:23:34.468 --> 00:23:36.663
If you scroll down,

374
00:23:37.743 --> 00:23:41.631
you’ll see the 3D Built-in Render Pipeline Core option

375
00:23:41.632 --> 00:23:44.408
located at the bottom

376
00:23:45.023 --> 00:23:48.398
To use this 3D Built-in Render Pipeline Core template

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00:23:48.398 --> 00:23:52.518
for your project,

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00:23:52.518 --> 00:23:58.800
select it and then click Download Template on the right

379
00:24:00.588 --> 00:24:03.104
This should only take a moment

380
00:24:04.034 --> 00:24:06.857
When the cloud icon disappears,

381
00:24:08.103 --> 00:24:11.343
that means the download is complete

382
00:24:11.344 --> 00:24:13.334
After downloading,

383
00:24:13.335 --> 00:24:15.723
you can proceed by selecting the Create Project button

384
00:24:15.723 --> 00:24:19.907
to create the project using the Built-in version

385
00:24:21.663 --> 00:24:23.351
From now on, the steps will be the same

386
00:24:23.762 --> 00:24:27.971
So, for the upcoming videos,
we will be using version 2022.3.50

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00:24:27.972 --> 00:24:31.192
or 4.9 for learning

388
00:24:31.542 --> 00:24:34.136
However, if you have experience with Unity

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00:24:34.137 --> 00:24:38.959
and are comfortable with it,

390
00:24:38.960 --> 00:24:40.433
you can use version 6 to learn and experiment

391
00:24:40.434 --> 00:24:42.671
Just be mindful of the version difference,

392
00:24:42.671 --> 00:24:47.044
and you’ll be able to follow along with the rest of the tutorials

393
00:24:47.213 --> 00:24:51.436
Unity’s Interface and Object Handling

394
00:24:51.558 --> 00:24:54.718
It took some time to create the project,

395
00:24:54.718 --> 00:24:57.945
but once it’s created, this window will appear,

396
00:24:58.398 --> 00:25:02.558
and we’ll continue working on the project in this editor

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00:25:03.158 --> 00:25:05.798
Let's look at it one by one

398
00:25:05.798 --> 00:25:08.532
Let’s take a look at the interface

399
00:25:08.958 --> 00:25:12.533
On the top left, we have the Hierarchy panel,

400
00:25:12.534 --> 00:25:14.951
in the center, the Scene panel,

401
00:25:15.038 --> 00:25:17.057
and on the right, the Inspector panel

402
00:25:17.057 --> 00:25:20.340
At the bottom, you’ll find the Project panel

403
00:25:20.677 --> 00:25:27.717
You can adjust the area of each panel
by placing the mouse cursor in the middle,

404
00:25:27.717 --> 00:25:28.753
just like this

405
00:25:29.077 --> 00:25:36.377
These panels can also be dragged
by clicking on the tabs above,

406
00:25:36.377 --> 00:25:38.678
and you can attach them to the side

407
00:25:38.678 --> 00:25:42.358
or float them freely in the center

408
00:25:42.358 --> 00:25:43.397
Let’s try floating the panel

409
00:25:43.397 --> 00:25:45.397
Once you’re done, you can drag them back and forth,

410
00:25:45.397 --> 00:25:48.886
making the workspace flexible

411
00:25:49.173 --> 00:25:50.373
The default layout

412
00:25:50.374 --> 00:25:55.958
It may not be the most convenient for us
during project work or learning,

413
00:25:55.958 --> 00:25:59.722
so let’s change it to a more comfortable layout

414
00:26:00.118 --> 00:26:06.198
At the top, there’s a Default option

415
00:26:06.357 --> 00:26:07.665
Click on it,

416
00:26:08.278 --> 00:26:14.072
and then click on the Tall option below

417
00:26:15.278 --> 00:26:20.246
You can see that the layout has been reorganized like this

418
00:26:20.757 --> 00:26:23.891
To return to the default layout,
simply change it back to Default,

419
00:26:24.238 --> 00:26:26.077
and it will return to its original state

420
00:26:26.077 --> 00:26:28.298
Let me switch it back to Tall

421
00:26:29.484 --> 00:26:30.949
Also,

422
00:26:30.950 --> 00:26:34.509
if you look at the top,

423
00:26:35.306 --> 00:26:39.278
you can see that the Game and Scene panels are overlapping

424
00:26:39.278 --> 00:26:45.518
It’s a bit inconvenient,
so I’ll drag the Game view to the bottom

425
00:26:47.180 --> 00:26:49.103
to make it more comfortable

426
00:26:50.680 --> 00:26:52.415
Let’s take a closer look at the interface

427
00:26:53.060 --> 00:26:54.259
On the left, there is the Scene view,

428
00:26:54.795 --> 00:26:55.795
here you can see the workspace

429
00:26:56.160 --> 00:27:01.200
This space is where we do most of our work

430
00:27:01.200 --> 00:27:06.040
In Unity, the objects we work with are called Game Objects

431
00:27:06.040 --> 00:27:10.190
This is the space where we place those game objects

432
00:27:11.780 --> 00:27:15.940
On the right, there is the Hierarchy panel

433
00:27:15.960 --> 00:27:21.439
This panel shows a list of all the game objects in the scene

434
00:27:21.439 --> 00:27:25.900
Right now, you can see the name of the scene, Sample Scene,

435
00:27:25.900 --> 00:27:28.516
and if you click the arrow next to it,

436
00:27:28.516 --> 00:27:32.313
you can see the game objects inside the scene

437
00:27:32.313 --> 00:27:34.380
For example, there is a Main Camera game object

438
00:27:34.380 --> 00:27:37.920
and a Directional Light game object

439
00:27:37.920 --> 00:27:40.482
listed there like this

440
00:27:40.860 --> 00:27:42.574
When you select one of these,

441
00:27:42.574 --> 00:27:46.833
it will highlight the selected game object in the Scene view,

442
00:27:47.680 --> 00:27:49.630
showing you its location

443
00:27:50.560 --> 00:27:54.540
On the right, you’ll see the Inspector panel

444
00:27:55.200 --> 00:27:57.840
As you can see, when you select a game object,

445
00:27:57.840 --> 00:28:01.719
the content in the Inspector panel changes accordingly

446
00:28:01.719 --> 00:28:06.039
 The Inspector panel is where you can adjust

447
00:28:06.039 --> 00:28:08.961
the settings of the selected game object

448
00:28:10.394 --> 00:28:11.675
Let's go down

449
00:28:11.676 --> 00:28:13.549
and we see Project

450
00:28:13.550 --> 00:28:18.756
Think of the Project panel as similar to Windows Explorer

451
00:28:19.219 --> 00:28:21.396
It shows all the files related to your project

452
00:28:21.899 --> 00:28:24.062
The items at the top are the Game Objects

453
00:28:24.063 --> 00:28:26.555
These are the game objects in the scene

454
00:28:26.780 --> 00:28:30.460
The game objects exist in memory,

455
00:28:30.460 --> 00:28:32.014
but you can think of them as virtual objects

456
00:28:32.014 --> 00:28:35.033
They don’t actually exist in physical space

457
00:28:35.340 --> 00:28:39.249
So these copies are called instances

458
00:28:40.280 --> 00:28:45.640
The Hierarchy panel shows virtual objects that exist in memory,

459
00:28:45.640 --> 00:28:48.141
whereas the Project panel

460
00:28:48.141 --> 00:28:53.188
deals with actual files stored on your hard drive or SSD

461
00:28:53.188 --> 00:28:57.320
 These files are the physical assets used in the project

462
00:28:57.320 --> 00:29:00.760
In Unity, we refer

463
00:29:00.760 --> 00:29:03.960
to these as Assets

464
00:29:03.960 --> 00:29:04.643
Assets

465
00:29:04.643 --> 00:29:08.032
So we see Assets here

466
00:29:08.279 --> 00:29:14.980
In the Project panel, you can organize these assets into folders,

467
00:29:14.980 --> 00:29:18.587
and this space is where you manage your assets

468
00:29:19.540 --> 00:29:21.237
In the Game view,

469
00:29:21.579 --> 00:29:27.299
you see how the scene and the objects
you’ve arranged in the Scene view

470
00:29:27.299 --> 00:29:34.236
or the settings you’ve adjusted in the Hierarchy

471
00:29:34.236 --> 00:29:36.631
and Inspector panels are displayed when played

472
00:29:36.631 --> 00:29:42.359
The Game view shows the result of

473
00:29:42.359 --> 00:29:46.992
what a player would see once the content is running

474
00:29:48.279 --> 00:29:52.120
Currently, this screen displays

475
00:29:52.120 --> 00:29:55.837
what the Main Camera is capturing in the scene

476
00:29:58.719 --> 00:30:01.750
That's what we have there

477
00:30:01.939 --> 00:30:06.977
Now, let’s get familiar with the Unity engine

478
00:30:08.380 --> 00:30:11.859
by starting with a simple box

479
00:30:11.859 --> 00:30:14.304
Unity provides various

480
00:30:14.305 --> 00:30:16.188
primitive shapes

481
00:30:16.188 --> 00:30:19.380
In the Hierarchy panel, there’s a plus button

482
00:30:19.380 --> 00:30:21.163
Click this button

483
00:30:21.164 --> 00:30:25.252
and select Cube from the 3D Objects options

484
00:30:25.980 --> 00:30:29.726
A cube game object will appear in the scene

485
00:30:30.859 --> 00:30:32.079
You can name it by selecting the Cube name,

486
00:30:32.079 --> 00:30:37.087
and I’ll confirm the name here

487
00:30:37.680 --> 00:30:42.566
Once the cube game object appears in the Scene view,

488
00:30:42.566 --> 00:30:46.353
you’ll see a white box

489
00:30:46.760 --> 00:30:52.480
Since the Main Camera is focused on it,

490
00:30:52.480 --> 00:30:54.472
you’ll see

491
00:30:55.760 --> 00:30:59.577
the same white box in the Game view as well

492
00:31:00.939 --> 00:31:06.729
Let’s learn how to manipulate the Scene view using this cube

493
00:31:08.020 --> 00:31:09.102
First,

494
00:31:09.749 --> 00:31:13.789
let’s navigate the Scene view

495
00:31:14.139 --> 00:31:18.620
Click the left mouse button to select the game object

496
00:31:18.620 --> 00:31:19.688
Select

497
00:31:19.689 --> 00:31:22.407
If you click outside the boundaries, the selection will be canceled

498
00:31:23.319 --> 00:31:28.186
By clicking the right mouse button, an eye icon will appear,

499
00:31:28.541 --> 00:31:32.680
and by dragging the mouse while holding the right button,

500
00:31:32.680 --> 00:31:37.000
you can rotate the view as if turning your head

501
00:31:37.000 --> 00:31:39.146
Hold the right mouse button and move the mouse

502
00:31:39.840 --> 00:31:43.799
While holding the right mouse button,

503
00:31:43.799 --> 00:31:47.003
you can also use the A, S, D, W keys to move the camera

504
00:31:47.373 --> 00:31:49.728
A for left,

505
00:31:49.728 --> 00:31:51.702
D for right,

506
00:31:51.703 --> 00:31:53.798
W for forward,

507
00:31:53.800 --> 00:31:57.001
and S for backward

508
00:31:57.539 --> 00:31:59.700
You can move it around

509
00:32:01.979 --> 00:32:04.539
Turning the middle mouse wheel

510
00:32:04.539 --> 00:32:08.658
up zooms in, and turning it down zooms out

511
00:32:08.979 --> 00:32:10.500
You can click the middle mouse button

512
00:32:10.500 --> 00:32:14.099
to switch to the hand icon,

513
00:32:14.099 --> 00:32:16.539
allowing you to drag and adjust the view

514
00:32:16.539 --> 00:32:18.748
If you lose track of an object

515
00:32:18.748 --> 00:32:21.520
while in hand mode,

516
00:32:21.520 --> 00:32:25.359
to find that object,

517
00:32:25.359 --> 00:32:27.869
there is an easy way

518
00:32:28.280 --> 00:32:31.440
You can find it easily by double-clicking

519
00:32:31.440 --> 00:32:34.543
the cube in the Hierarchy

520
00:32:35.120 --> 00:32:37.973
Now we have a cube game object

521
00:32:40.280 --> 00:32:42.378
Now, let’s move the cube

522
00:32:42.960 --> 00:32:46.693
There’s an arrow button in the Scene view,

523
00:32:47.180 --> 00:32:48.487
This is activated by the arrow button

524
00:32:49.444 --> 00:32:54.865
on the left side of the Scene view

525
00:32:54.865 --> 00:33:00.379
Since the Move tool is selected,
you can see the arrow icons appear

526
00:33:00.379 --> 00:33:03.180
With this arrow icon,

527
00:33:03.180 --> 00:33:06.500
if you hover over the red arrow and drag it,

528
00:33:06.500 --> 00:33:09.940
you can move the object along the red axis

529
00:33:09.940 --> 00:33:13.058
The red arrow becomes thicker as you hover over it

530
00:33:13.400 --> 00:33:20.185
Similarly, the blue and green arrows can be used

531
00:33:20.720 --> 00:33:22.560
to move the object

532
00:33:22.560 --> 00:33:25.879
along the blue

533
00:33:25.879 --> 00:33:30.004
and green axes respectively

534
00:33:30.359 --> 00:33:32.879
You can also click the square in the middle,

535
00:33:32.879 --> 00:33:34.421
clicking the green square

536
00:33:35.479 --> 00:33:37.240
over here

537
00:33:37.240 --> 00:33:42.364
moves it with the red and blue arrow, without the green

538
00:33:43.060 --> 00:33:46.005
So it's only one side

539
00:33:46.419 --> 00:33:49.060
It moves the object along the Y and Z axes

540
00:33:49.060 --> 00:33:52.715
while excluding the red axis

541
00:33:55.020 --> 00:33:58.209
And under there,

542
00:33:58.209 --> 00:34:00.174
we have Rotate tool

543
00:34:00.299 --> 00:34:03.299
This tool allows you to rotate the object

544
00:34:03.299 --> 00:34:06.299
You can rotate the object along the red, green, or blue axes

545
00:34:06.319 --> 00:34:08.422
by dragging the respective color-coded rings

546
00:34:10.400 --> 00:34:12.160
Let's bring it back

547
00:34:12.160 --> 00:34:13.639
by using Ctrl Z

548
00:34:13.639 --> 00:34:15.526
Ctrl Z, Ctrl Z, Ctrl Z

549
00:34:16.799 --> 00:34:17.653
And four,

550
00:34:17.653 --> 00:34:21.390
Scale can resize

551
00:34:21.599 --> 00:34:26.955
If you select the red cube and stretch it,

552
00:34:26.955 --> 00:34:29.240
it will elongate along the red axis

553
00:34:29.240 --> 00:34:33.659
Similarly, if you select the blue arrow and stretch it,

554
00:34:34.400 --> 00:34:35.319
it will elongate along the blue axis

555
00:34:35.340 --> 00:34:39.259
If you select the green arrow and stretch it,

556
00:34:39.259 --> 00:34:42.040
it will elongate along the green axis

557
00:34:42.040 --> 00:34:44.638
If you select the white square in the center,

558
00:34:44.638 --> 00:34:47.512
the cube will stretch uniformly along all three axes

559
00:34:51.473 --> 00:34:53.556
Next is the Rect tool,

560
00:34:53.557 --> 00:34:55.426
which generates a gizmo

561
00:34:55.426 --> 00:34:57.419
It's this tool right here

562
00:34:57.419 --> 00:35:01.581
This tool allows you to grab the outer edges
of an object and move it

563
00:35:01.840 --> 00:35:04.537
However, this tool is primarily used

564
00:35:04.538 --> 00:35:06.559
for adjusting

565
00:35:06.561 --> 00:35:10.960
2D objects or 2D sprites, not 3D objects

566
00:35:10.960 --> 00:35:12.879
It’s not commonly used for 3D objects

567
00:35:12.879 --> 00:35:16.799
but is more useful in UI or 2D projects

568
00:35:16.799 --> 00:35:19.400
That's what this tool does

569
00:35:19.400 --> 00:35:21.040
Now, let’s look at a button

570
00:35:21.040 --> 00:35:23.174
This is like a combination

571
00:35:23.175 --> 00:35:26.551
of the Move, Rotate, and Scale tools,

572
00:35:26.551 --> 00:35:28.721
which we have seen before

573
00:35:29.420 --> 00:35:33.780
So these three are the commonly used tools

574
00:35:35.179 --> 00:35:39.939
Instead of clicking each one individually,

575
00:35:39.939 --> 00:35:43.193
Unity provides keyboard shortcuts for these tools

576
00:35:43.499 --> 00:35:46.660
Pressing the W key activates the Move tool,

577
00:35:46.660 --> 00:35:51.139
the E key activates the Rotate tool,

578
00:35:51.139 --> 00:35:54.900
and the R key activates the Scale tool

579
00:35:54.900 --> 00:35:57.912
They switch like this

580
00:35:58.300 --> 00:36:01.918
You can easily switch between these tools using W, E, and R

581
00:36:04.732 --> 00:36:08.119
Let’s use this box to create a simple chair

582
00:36:08.119 --> 00:36:09.995
and become more familiar with Unity

583
00:36:11.400 --> 00:36:13.993
First, I will create a new scene

584
00:36:14.439 --> 00:36:19.600
Click on File-New Scene, then select Built-in,

585
00:36:19.600 --> 00:36:22.609
Basic and click Create

586
00:36:23.679 --> 00:36:26.999
When it asks if you want to save the current sample scene,

587
00:36:26.999 --> 00:36:28.189
you can choose not to save it

588
00:36:28.660 --> 00:36:32.348
We will save the new scene we are creating

589
00:36:32.819 --> 00:36:35.020
This new scene is labeled as Untitled,

590
00:36:35.020 --> 00:36:36.220
so we need to save it

591
00:36:36.220 --> 00:36:41.619
Click on File-Save As to save it

592
00:36:41.619 --> 00:36:43.636
When saving, keep in mind

593
00:36:43.939 --> 00:36:50.259
that all assets used in Unity must be located

594
00:36:50.259 --> 00:36:52.220
within the project folder,

595
00:36:52.220 --> 00:36:54.993
the project folder right here,

596
00:36:55.239 --> 00:36:59.960
specifically inside the Assets folder

597
00:36:59.960 --> 00:37:00.867
Meaning,

598
00:37:01.199 --> 00:37:05.220
the project we are working on

599
00:37:08.280 --> 00:37:10.079
is located inside the Unity Project folder,

600
00:37:10.079 --> 00:37:13.199
with a subfolder called MyProject

601
00:37:13.199 --> 00:37:18.530
where the project is stored

602
00:37:19.639 --> 00:37:22.985
Within this, there are various folders,

603
00:37:23.619 --> 00:37:30.866
and the scene file should be inside the Assets folder

604
00:37:31.499 --> 00:37:34.939
The scene we are saving

605
00:37:34.939 --> 00:37:37.618
should be inside the Assets folder

606
00:37:39.259 --> 00:37:39.934
Do not save it outside,

607
00:37:40.264 --> 00:37:42.120
especially not on the desktop

608
00:37:42.120 --> 00:37:43.179
or other locations

609
00:37:43.179 --> 00:37:47.909
outside the project folder, outside MyProject

610
00:37:49.139 --> 00:37:52.282
Now, in the Assets folder,

611
00:37:53.639 --> 00:37:57.199
we have SampleScene,

612
00:37:57.199 --> 00:37:59.639
which was created in the beginning

613
00:37:59.639 --> 00:38:02.480
Let's name this folder with the asset

614
00:38:02.480 --> 00:38:07.273
We will create a new scene and name it ChairScene

615
00:38:08.679 --> 00:38:11.904
Now on Project Window,

616
00:38:11.905 --> 00:38:13.368
in Asset,

617
00:38:13.368 --> 00:38:14.708
in Scene Folder,

618
00:38:14.720 --> 00:38:18.569
we see the ChairScene Asset

619
00:38:19.780 --> 00:38:23.554
This Asset is where this scene is saved in

620
00:38:24.460 --> 00:38:28.980
Let’s create a simple chair by first making a cube

621
00:38:28.980 --> 00:38:31.340
In the Hierarchy panel,

622
00:38:31.340 --> 00:38:33.819
click the Plus button and select 3D Object > Cube

623
00:38:33.819 --> 00:38:35.205
We will keep the default name for the cube

624
00:38:36.860 --> 00:38:40.059
Now, we will flatten the cube

625
00:38:40.059 --> 00:38:42.434
to create the sitting area where someone can sit

626
00:38:43.439 --> 00:38:47.958
Using the Scale Tool, drag the cube along the green axis

627
00:38:47.958 --> 00:38:52.639
to make it flatter

628
00:38:52.639 --> 00:38:56.493
The cube is currently a bit awkwardly placed,

629
00:38:58.639 --> 00:39:02.639
so I want to center it properly in the scene

630
00:39:02.639 --> 00:39:06.036
We want to move it to the exact center of the world

631
00:39:06.920 --> 00:39:07.964
Right in the center

632
00:39:08.480 --> 00:39:09.920
As you can see,

633
00:39:09.920 --> 00:39:11.458
which is pretty self-explanatory,

634
00:39:12.360 --> 00:39:14.420
by using the Move Tool

635
00:39:14.420 --> 00:39:18.020
or Scale Tool,

636
00:39:18.020 --> 00:39:23.336
the values in the Transform section

637
00:39:23.336 --> 00:39:26.871
of the Inspector panel change accordingly

638
00:39:28.153 --> 00:39:29.896
What this means is

639
00:39:30.346 --> 00:39:34.985
that when we use the Move Tool, Rotation Tool,

640
00:39:34.986 --> 00:39:38.160
or Scale Tool, these changes are reflected
in the Transform section

641
00:39:38.160 --> 00:39:40.093
For example, in Inspector,

642
00:39:41.087 --> 00:39:45.002
Transform, Position,

643
00:39:45.003 --> 00:39:49.896
when using the Move Tool, the Position values
in x, y, and z are adjusted

644
00:39:50.153 --> 00:39:58.264
Using the Rotation Tool changes the Rotation values
in the x, y, and z axes

645
00:39:58.833 --> 00:40:05.017
Similarly, when using the Scale Tool,
the Scale values will change

646
00:40:05.418 --> 00:40:08.548
This means that, in addition to using the gizmos

647
00:40:08.553 --> 00:40:12.076
W, E, and R to manipulate objects in the scene,

648
00:40:13.134 --> 00:40:19.016
you can also adjust these values
directly in the Inspector window

649
00:40:19.393 --> 00:40:24.528
You can click on the Position values and adjust them numerically,

650
00:40:24.529 --> 00:40:26.409
and you can move it like this

651
00:40:27.232 --> 00:40:28.735
allowing for precise movement

652
00:40:28.735 --> 00:40:33.566
So the location m over precisely like this

653
00:40:33.833 --> 00:40:35.573
For instance,

654
00:40:37.057 --> 00:40:40.897
if you click on the z value,
it will move the cube along the blue arrow,

655
00:40:41.174 --> 00:40:45.533
if you click on the x value,
it moves the cube along the red arrow

656
00:40:45.873 --> 00:40:49.973
and clicking the y value moves it along the green arrow

657
00:40:49.974 --> 00:40:52.146
This means that the red arrow corresponds to the x-axis,

658
00:40:52.633 --> 00:40:53.974
the blue arrow to the z-axis,

659
00:40:54.663 --> 00:40:56.863
and the green arrow to the y-axis

660
00:40:57.384 --> 00:41:01.165
You can also check this through the gizmo at the top,

661
00:41:01.633 --> 00:41:03.234
like a compass

662
00:41:03.658 --> 00:41:07.559
This allows you to see the directions

663
00:41:07.559 --> 00:41:10.698
of the x and z axes in space,

664
00:41:10.698 --> 00:41:12.932
which is also confirmed by the colors

665
00:41:14.873 --> 00:41:18.005
You can use these values to make adjustments

666
00:41:18.005 --> 00:41:21.564
For example, if you want to move the object to the center,

667
00:41:22.471 --> 00:41:24.131
back to point 0,

668
00:41:24.131 --> 00:41:28.653
you can set the x, y, and z values to 0 in the Position section

669
00:41:28.653 --> 00:41:31.873
This will move the object to the origin (0, 0, 0) in space

670
00:41:33.032 --> 00:41:37.413
If you set the Scale to 1, 1, 1, it will return to its original size

671
00:41:39.913 --> 00:41:45.843
In Unity, the position values are measured in units

672
00:41:45.844 --> 00:41:49.104
Moving an object by 1 unit, for instance

673
00:41:49.353 --> 00:41:52.594
If the position value is 1.78 units,

674
00:41:53.467 --> 00:41:57.187
since 1 unit is 1 meter,

675
00:41:57.187 --> 00:41:59.593
this is around 1.5m in reality

676
00:42:00.190 --> 00:42:02.329
The Rotation value refers to the angle

677
00:42:02.330 --> 00:42:06.678
For example, setting the x rotation to 2.79 degrees
will rotate the object by that amount

678
00:42:07.552 --> 00:42:09.232
The Scale value can be adjusted by multiplying

679
00:42:11.273 --> 00:42:13.493
If you set the scale to 2, it will double the size,

680
00:42:14.571 --> 00:42:16.811
and if you set it to 3, it will triple the size

681
00:42:17.061 --> 00:42:18.861
Meaning, multiply by 3

682
00:42:20.512 --> 00:42:23.634
For the cube, we flattened it

683
00:42:23.634 --> 00:42:26.773
along the y-axis, which means

684
00:42:26.773 --> 00:42:33.392
we scaled it down by 0.16 along that axis

685
00:42:34.472 --> 00:42:35.603
This means we can

686
00:42:35.933 --> 00:42:40.313
use the gizmos or directly modify the Transform values

687
00:42:40.574 --> 00:42:48.382
in the Inspector to adjust the object precisely
Setting the y-axis scale to 0.16 will compress it accordingly

688
00:42:48.382 --> 00:42:52.392
I will make it precise, like 0.2

689
00:42:52.752 --> 00:42:54.232
So, the position value has been moved now

690
00:42:54.233 --> 00:42:55.583
The position value is 0

691
00:42:57.353 --> 00:43:01.132
Since the rotation value has been changed as well,
let’s reset it back to 0

692
00:43:02.872 --> 00:43:05.554
Now that we have the seat part, shall we make the backrest?

693
00:43:05.555 --> 00:43:08.614
The backrest can be made by simply

694
00:43:08.615 --> 00:43:10.685
copying this cube and placing it on top

695
00:43:11.633 --> 00:43:14.353
Let’s try duplicating the cube

696
00:43:14.354 --> 00:43:17.608
We can use Ctrl + C, Ctrl + V,

697
00:43:17.993 --> 00:43:20.173
or Ctrl + D,

698
00:43:20.562 --> 00:43:21.468
alphabet D

699
00:43:21.469 --> 00:43:25.119
Ctrl + D to duplicate

700
00:43:25.119 --> 00:43:26.114
By holding Ctrl and pressing D,

701
00:43:26.115 --> 00:43:27.411
the cube gets duplicated

702
00:43:27.580 --> 00:43:30.559
Alternatively, you can right-click and select Duplicate

703
00:43:31.273 --> 00:43:34.472
When you duplicate the cube, it may appear unchanged

704
00:43:34.473 --> 00:43:35.837
because it overlaps with the original one

705
00:43:36.232 --> 00:43:39.032
But if we lift it, you’ll see that it’s indeed duplicated

706
00:43:39.473 --> 00:43:40.473
Now, let’s rotate it

707
00:43:40.585 --> 00:43:42.065
Rotate it like so

708
00:43:42.592 --> 00:43:43.853
Let’s make a slight tilt to the backrest

709
00:43:44.214 --> 00:43:47.730
Like this

710
00:43:48.912 --> 00:43:53.573
Now that the backrest is tilted,

711
00:43:54.433 --> 00:43:56.972
let’s move on and add the legs underneath

712
00:43:57.232 --> 00:43:58.129
Click the Plus button

713
00:43:58.130 --> 00:43:59.354
and choose 3D Object,

714
00:43:59.354 --> 00:44:01.994
then select Cube to create the legs

715
00:44:02.593 --> 00:44:04.172
Place it at the origin

716
00:44:04.173 --> 00:44:05.173
at 0, 0, 0

717
00:44:06.912 --> 00:44:11.152
The leg will be long vertically and small horizontally,

718
00:44:11.392 --> 00:44:13.973
so let’s flatten it a bit

719
00:44:15.473 --> 00:44:19.493
When viewed from above,
a square shape is much closer to a leg shape

720
00:44:19.713 --> 00:44:28.512
Now, by reducing it by 0.15 on the x-axis

721
00:44:28.512 --> 00:44:33.453
and 0.15 on the z-axis,

722
00:44:33.453 --> 00:44:38.272
it transforms into a long rectangular leg shape

723
00:44:38.672 --> 00:44:40.634
Now let’s move it down

724
00:44:41.160 --> 00:44:43.760
to a suitable position

725
00:44:45.153 --> 00:44:48.392
It can be tricky to match it precisely,

726
00:44:48.512 --> 00:44:51.913
but Unity has

727
00:44:52.198 --> 00:44:54.298
a feature that helps us align objects,

728
00:44:54.298 --> 00:44:59.313
so that the corners can meet like so

729
00:44:59.873 --> 00:45:03.072
Hold the V key

730
00:45:03.072 --> 00:45:06.512
and hover the mouse over the corner,

731
00:45:06.512 --> 00:45:09.072
then click on the corner of the object

732
00:45:09.072 --> 00:45:11.392
and then where you want to move it

733
00:45:11.392 --> 00:45:12.573
It will automatically snap into place

734
00:45:13.313 --> 00:45:16.233
So do everything while pressing V

735
00:45:17.473 --> 00:45:21.072
So it's all aligning perfectly

736
00:45:21.792 --> 00:45:25.232
Let's duplicate it on the right too

737
00:45:25.632 --> 00:45:29.093
By using Ctrl + D, we duplicate, move,

738
00:45:29.993 --> 00:45:32.313
and use the V key

739
00:45:32.313 --> 00:45:35.493
to snap it into place on the corner,

740
00:45:35.741 --> 00:45:37.201
move it to that corner

741
00:45:37.593 --> 00:45:38.499
It snaps right on

742
00:45:38.647 --> 00:45:39.627
You can let the V key go

743
00:45:40.328 --> 00:45:41.206
Done

744
00:45:42.392 --> 00:45:44.873
Let's move the other legs too

745
00:45:45.753 --> 00:45:46.629
Ctrl D

746
00:45:47.037 --> 00:45:48.037
Move

747
00:45:48.398 --> 00:45:50.418
V to snap

748
00:45:50.853 --> 00:45:51.893
Same thing here

749
00:45:53.433 --> 00:45:54.318
Ctrl D

750
00:45:54.829 --> 00:45:55.690
Move

751
00:45:57.030 --> 00:45:59.409
V to snap it on

752
00:45:59.672 --> 00:46:01.433
And that was easy as that

753
00:46:03.213 --> 00:46:09.093
In this way, a simple chair shape has been created

754
00:46:10.833 --> 00:46:15.192
Now, you’ll be able to handle Unity with more flexibility

755
00:46:16.813 --> 00:46:20.793
Let's summarize what we've learned today

756
00:46:20.793 --> 00:46:22.585
Exploring Unity, Installing Unity
Unity engine structure, component set, game objects,
game object sets, scenes, scene sets, projects

757
00:46:22.585 --> 00:46:23.546
Unity Production Process
Prototyping
Implementing with basic shapes
without waiting for the final art assets
Simultaneous work
Verifying

758
00:46:23.546 --> 00:46:25.526
Alpha: Version after completing the appearance verification
Beta: Version after completing optimization
Install Unity 2022.3.50f1

759
00:46:25.526 --> 00:46:26.866
Unity Interface and Object Handling
Scene View: Space for placing game objects
Hierarchy: List of game objects in the scene view

760
00:46:26.866 --> 00:46:27.667
Inspector: Managing settings of game objects
Project: Asset management
Game View: Space for confirming the actual functioning results

761
00:46:27.668 --> 00:46:28.668
Handling Objects
Insert basic shapes: Hierarchy + 3D Object
Change game objects with Move Tool, Rotate Tool, Scale Tool, Rect Tool

762
00:46:28.669 --> 00:46:30.569
Modify game objects by adjusting the Transform values in the Inspector
V to position the gizmo, drag and drop