Unity’s SceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
See in Glossary format uses a custom subset of the YAML data serialization language. YAML is an open format with documentation about it available on the YAML website. For more information about the YAML used in unity, read the documentation on UnityYAML.
The file writes each Object in a Scene as a separate YAML document. The ---
sequence introduces each Object in the file. In this context, the term “Object” refers to GameObjectsThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary, Components and other scene data collectively: each of these items needs its own YAML document in the scene file. The following example shows the basic structure of a serialized object:
--- !u!1 &6 GameObject: m_ObjectHideFlags: 0 m_PrefabParentObject: {fileID: 0} m_PrefabInternal: {fileID: 0} importerVersion: 3 m_Component: - 4: {fileID: 8} - 33: {fileID: 12} - 65: {fileID: 13} - 23: {fileID: 11} m_Layer: 0 m_Name: Cube m_TagString: Untagged m_Icon: {fileID: 0} m_NavMeshLayer: 0 m_StaticEditorFlags: 0 m_IsActive: 1
The first line contains the string !u!1 &6
after the document marker. The first number after !u!
indicates the class of the object (in this case, it is a GameObject). The number following the ampersand is an object ID number unique within the file, although the number is assigned to each object arbitrarily. Each of the object’s serializable properties is denoted by a line like the following:
m_Name: Cube
Properties are typically prefixed with m_
but otherwise follow the name of the property as defined in the script reference. The following example shows how a second object, defined further down in the file looks:
--- !u!4 &8 Transform: m_ObjectHideFlags: 0 m_PrefabParentObject: {fileID: 0} m_PrefabInternal: {fileID: 0} m_GameObject: {fileID: 6} m_LocalRotation: {x: 0.000000, y: 0.000000, z: 0.000000, w: 1.000000} m_LocalPosition: {x: -2.618721, y: 1.028581, z: 1.131627} m_LocalScale: {x: 1.000000, y: 1.000000, z: 1.000000} m_Children: [] m_Father: {fileID: 0}
The following example shows an attached Transform componentA Transform component determines the Position, Rotation, and Scale of each object in the scene. Every GameObject has a Transform. More info
See in Glossary to the GameObject defined by the YAML document above. {fileID:6}
is used to represent the GameObject as the GameObject’s object ID within the file was 6.
m_GameObject: {fileID: 6}
…
Decimal representation or hexadecimal numbers in IEEE 754 format (denoted by a 0x prefix) can be used to represent floating point numbers. Unity uses the IEEE 754 representation for lossless encoding of values and to write floating point values which don’t have a short decimal representation. When Unity writes numbers in hexadecimal, it always writes the decimal format in parentheses for debugging purposes, but only the hex is actually parsed when loading the file. To edit these values manually, remove the hex and enter a decimal number. The following example shows a valid representation of floating point values (all representing the number one):
myValue: 0x3F800000 myValue: 1 myValue: 1.000 myValue: 0x3f800000(1) myValue: 0.1e1
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.
When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. This information might be about you, your preferences or your device and is mostly used to make the site work as you expect it to. The information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different category headings to find out more and change our default settings. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer.
More information
These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising. Some 3rd party video providers do not allow video views without targeting cookies. If you are experiencing difficulty viewing a video, you will need to set your cookie preferences for targeting to yes if you wish to view videos from these providers. Unity does not control this.
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.