Optimization: Do this to your UI in Unity & Thing to be careful about...

Summary

In this tutorial, the host demonstrates a simple optimization technique for gaming UI by disabling the 'Raycast Target' option on non-interactive elements. Using the Access Code GUI Pro Kit, the video shows how this adjustment can significantly reduce the game's frame time, as observed through the profiler. The host also introduces a script to automate the disabling of 'Raycast Target' across all UI components, saving time and improving performance, especially in games with extensive UI interactions.

Takeaways

• 📌 Disable the raycast target option in all non-interactive UI elements to optimize your game.
• 🎮 Using the Access Code GUI Pro Kit for the tutorial, with a link provided in the description.
• 🖥️ Running a sample scene with multiple stacked UI elements to demonstrate optimization.
• ⚙️ Enabling the info profiler option is crucial for investigating optimization methods.
• 🖱️ Profiler shows significant input processing when moving the mouse over the UI.
• 📉 Disabling raycast targets in non-interactive UI elements reduces unnecessary processing.
• 🔍 Investigating the profiler data reveals that unnecessary raycasting takes up processing time.
• 🛠️ A script with methods to disable and enable raycasts across all UI elements saves time.
• ✅ Using the Naughty Attribute package to streamline the process of disabling raycasts.
• 🚀 Disabling raycast targets leads to a significant reduction in processing time, improving game performance.

Q & A

What is the main focus of the tutorial in the video script?

The main focus of the tutorial is to show a simple tip to optimize a game by disabling the raycast target option in non-integrated UI elements.

What is the purpose of disabling the raycast target option in UI elements?

Disabling the raycast target option in non-interactive UI elements can help optimize the game performance by reducing unnecessary processing time spent on detecting mouse interactions with UI elements that do not require user input.

What tool or kit does the tutorial use for the demonstration?

The tutorial uses the Access Code GUI Pro Kit for the demonstration.

How does the profiler help in identifying performance issues in the game?

The profiler helps by showing the time taken by different processes in the game loop, allowing developers to identify which areas are consuming more time and need optimization.

What is the significance of the 'info file' option when using the profiler?

The 'info file' option helps to investigate all matters related to the game's performance, providing detailed insights into the processes and their respective timings.

What is the role of the 'Event System' in the context of the tutorial?

The 'Event System' is responsible for handling user interactions with the UI. It processes input and notifies the game when the user is interacting with the UI elements.

What does the script provided in the tutorial do?

The script provided in the tutorial has two methods: one to disable the raycast target and another to enable it. It loops through all the children of a UI element and disables or enables the raycast target based on the presence of a 'button' attribute.

What is the 'Naughty Attributes' package mentioned in the tutorial?

The 'Naughty Attributes' package is a tool that allows for easier and more efficient UI element manipulation in Unity, such as enabling or disabling the raycast target without manually going through each element.

How does disabling the raycast target affect the performance of the game?

Disabling the raycast target on non-interactive UI elements can significantly reduce the time taken by the event system to process input, as it eliminates the unnecessary raycasting process for elements that do not require user interaction.

What are the potential issues with disabling the raycast target on interactive UI elements?

Disabling the raycast target on interactive UI elements, such as buttons, can prevent the game from detecting user clicks, resulting in a lack of response when the user interacts with these elements.

What is the final recommendation given by the tutorial for optimizing UI interactions in games?

The tutorial recommends selectively disabling the raycast target on non-interactive UI elements to optimize performance, while ensuring that interactive elements retain the raycast target to maintain functionality.

Outlines

00:00

🎮 Optimizing Game Performance with UI Raycast Target

In this video, the host introduces a simple tip to optimize game performance by disabling the raycast target option in non-integrated UI elements. The tutorial utilizes the Access Code GUI Pro kit and encourages viewers to check it out via a link in the description. The host demonstrates the impact of this optimization by running a game with a lot of UI elements stacked together. Initially, the game runs normally, but upon opening the profiler, it's revealed that the UI elements are causing a significant performance hit when the mouse is moved in and out of the window. The host explains that the raycast target is responsible for detecting UI interactions, but it's unnecessary for non-interactive elements. To illustrate the point, a script is introduced that can enable or disable the raycast target for all children of a UI element, saving time and improving performance. The host uses the Naughty Attributes package to streamline this process and invites viewers to check out a full tutorial for more information.

05:00

🔍 Enhancing Game Efficiency by Managing Raycast Targets

Continuing from the previous segment, the host demonstrates the benefits of disabling raycast targets in UI elements. Initially, with raycast targets enabled, the game's performance is noticeably impacted, as shown by the profiler. The host then uses a script to disable raycast targets in the UI, which significantly reduces the event system's processing time from 5.95 milliseconds to 1.47 milliseconds. This improvement is crucial for games where UI interactions are frequent. The host also highlights the importance of selectively disabling raycast targets, as doing so on interactive elements like buttons can prevent them from responding to clicks. The video concludes with a reminder to consider the impact of UI optimizations on game performance and encourages viewers to like, subscribe, and comment if they are interested in more optimization topics.

Keywords

💡Raycast

Raycast is a method used in game development to determine the intersection of a line with other objects in the game world, typically for input handling or collision detection. In the video, raycast is used to detect mouse interactions with UI elements. The script mentions optimizing performance by disabling raycast on non-interactive UI elements to reduce unnecessary calculations.

💡Optimization

Optimization in the context of game development refers to the process of improving the performance and efficiency of a game. The video's theme revolves around optimizing game performance by disabling the raycast target option on non-interactive UI elements, which is a specific optimization technique to reduce the computational load.

💡UI Elements

UI elements are the visual components of a game's user interface, such as buttons, images, and text. The script discusses the impact of raycast on these elements, emphasizing that disabling raycast on non-interactive UI can lead to performance gains without affecting interactive elements like buttons.

💡Profiler

A profiler is a tool used to measure the performance of a program, often used in game development to identify bottlenecks. The video script mentions using the profiler to analyze the time taken by various processes, such as the event system update, to understand the impact of enabling or disabling raycast targets.

💡Event System

The event system in game development is responsible for handling user inputs and other events. The script explains that the event system is involved when raycast is used to detect mouse interactions with UI elements, and how disabling raycast on non-interactive elements can reduce the time taken by the event system.

💡Raycaster

A raycaster is a component that performs raycasting, which is used to determine if a ray intersects with other objects. In the video, the script refers to the 'sophisticated Easy, graphic raycaster' as part of the process that identifies UI elements under the mouse cursor, which is optimized by disabling raycast targets.

💡Interactive UI

Interactive UI refers to the parts of a user interface that respond to user input, such as buttons or sliders. The video script contrasts interactive UI with non-interactive UI, noting that disabling raycast on the latter does not affect the functionality of interactive elements.

💡Non-Interactive UI

Non-interactive UI are UI elements that do not respond to user input, such as decorative images or backgrounds. The script suggests that disabling raycast on these elements can be an effective optimization strategy, as they do not require input detection.

💡Naughty Attribute

Naughty Attribute is a package mentioned in the script that allows for the execution of methods in the inspector, which can be used to enable or disable raycast targets on UI elements. This package is presented as a tool to streamline the optimization process.

💡Performance Impact

Performance impact refers to the effect that certain operations or processes have on the efficiency and speed of a game. The video demonstrates the significant performance impact of disabling raycast targets on non-interactive UI elements, showing a reduction in the time taken by the event system.

Highlights

The tutorial provides a simple tip to optimize game performance by disabling the raycast target option in non-integrated UI elements.

The use of Access Code GUI Pro Kit is mentioned, with a link provided in the description for interested viewers.

A sample scene with a lot of UI elements is used to demonstrate the optimization process.

Profiler is introduced as a tool to investigate and optimize game performance.

The impact of mouse movement on the game's event system and the significance of raycast are discussed.

A script is introduced to disable and enable raycast target on UI elements, saving time and improving performance.

Naughty Attributes package is mentioned for executing methods in the inspector, with a tutorial link provided.

The optimization effect is shown by comparing the event system's processing time before and after disabling raycast targets.

The importance of considering the type of UI elements when disabling raycast targets is highlighted.

A demonstration of the impact on game performance when raycast targets are disabled on non-interactive UI elements.

An explanation of how disabling raycast targets on interactive UI elements can affect game functionality.

The difference between UI Sprite and source image in the context of raycast targets and their impact on game events.

A cautionary note on disabling raycast targets without considering the UI element's role in the game's interactive design.

The tutorial concludes with a call to action for likes, subscriptions, and comments on optimization topics.

A reminder of the practical applications of the optimization tip in real games, especially those with heavy UI interactions.

An emphasis on the potential major impact of the optimization on game performance in certain scenarios.

Transcripts

hi welcome to my Channel today I will

show you a simple tip to optimize your

game

I will go straight to the point that is

disable the raycast target option right

here

in all the non-integrated UI elements

why that's let's find out

in this tutorial I use the access code

GUI Pro kit cash again

I will give a link down in the

description below

if you're interested in it you can check

it out

and for the sample scene I have a lot of

UI

right here stack you on each other

the reason for that is I'm gonna show

you how significant as we gonna optimize

our game if we had a lot of UR now first

I will run the game

you will see that everything is quite

normal

but but I will open the value to show

you something

when I open the profiler please make

sure to enable the info file option

right here

this will help us to investigate all our

matters go to see how we can optimize

our code now let's run the game why

before 5.

you'll see the sky usual but let me show

you something I will move my browser

here

you see it has been searched

and when I move my mouse out the window

is gone

move in

it's went up move out it's gone move in

is well enough and move out it is gone

so something is quite unusual here let's

click it

you see

the play Loop half run for 28.6

milliseconds let's further investigating

it

and for you guys to know you can show us

how much time is going to run by

clicking right here and here I will

short form the top to bottom

and what we're gonna notice is you're

gonna click here

update the script run Behavior update

event system update click it standalones

input module process

kick it

process more event

now we see something quite unusual

remember

these search only happen when we move

the mouse in the window and it's gone

after we move value

so

there's something in here it says run

for

5.74 milliseconds

let's investigate more

you will see that it has supported input

module a small pointer event data

and now we see the coping it is the

event system and for sophisticated Easy

graphic raycaster that raycast

the reasons for that is when we're

interacting with the UI what we actually

do is we're gonna

create a request from our screen's

rotation I will call it X and Y and we

will create array cast and shooter

UI and Reddit found Target it will

notify the event system to let us know

that ah we interacting with our UI let's

give a response

however it is only model if we collide

with an interactive UI for example an

eut button because when we click the

button it will give us back the response

however in here if we interact with

non-interactive UI for example the image

right here it doesn't give us any

response so it is no point of doing that

and in next I will show you the data to

see that is disabled the request Target

actually model or not let's find out

accurate a civil script which has two

methods one is disable request and two

is enabling cast

what the message do is actually we're

going to Loop through all the children

if it's hardly it mesh component

I will be stable or enable it in here I

have the attribute called button and it

will allow us to execute our method in

the inspector it is from the naughty

attribute package and if you want to

learn more I have the full tutorial

right here I will give a link down in

the description below so make sure to

check it out now let's see it later in

the panels you will see that I have the

optimize raycast screen right here and

it has two buttons disable request and

enable request

first let's check

in the background you will see that I

had the request I guess enabled

when I click here

you will see that it's become disabled

oh that is still the same

so I don't have to manually go to all

the servants to click the button one by

one it's wasted time

use this package use naughty attribute

it's going to help us saving the

valuable time this weekend

now I will open the forefather to see

the major difference

click windows

analysis and profiler

remember to enable d45

now let's play

you will see that when relax our leg

break has started to be enabled

I will resign this a little bit I will

click here

you see that

something is quite searching here let's

click it and in play Loop you will find

update script run Behavior update click

here click here

click here

click here and you will see process mode

events

as it is where we click the button we

click the screen

let's further investigate

you will see that the event system

requires all take about

5.95 milliseconds

now

how about we disable all the records

Target

in the click panel

disable request

check again you'll see that the request

I guess has been set to disable let's

click here

you see that it's still searching but

when you click it

it's now gone to

1.47 milliseconds

remember in the real games especially in

some kind when you have to interact a

lot to your UI or some other games when

you have to tap a lot to draw to the

screen this will have a major impact on

your game and reduce how things run

foreign

thing you need to be taken into

consideration is as you can actually

disable raycast Target in your button

and it doesn't change anything

for example when I click button one it

will log out button won't have been

clicked and this was right here also

button and when I click it down it has

allow button to have been clicked and

for example in this button

which is right here I will put the

dual window for you have to see

there you go this is button and I can

just disable request Target

and for example when I click it

everything is still be fine however

in this thing

when I just disable

raycast Target

and when I click it

nothing will happen

but when I enable it

the enclosed message

has been printed out

the differences in here is as the source

image of this thing had no value

why is the button it has UI Sprite and

somehow

when the search image is low

you can just disable request Target and

expect the on click event between now

so you should be careful with that

is the ends of my video

if you like it please consider like And

subscribe to the channel this will be

really helpful to me if you interest in

some optimization topic

please comment down below

thank you for watching have a nice day