450 lines
16 KiB
ReStructuredText
450 lines
16 KiB
ReStructuredText
.. _quickstart:
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===========
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Quick start
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===========
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.. hint::
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*All session-related settings are located under: `View3D -> Sidebar -> Multiuser panel`*
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The multi-user addon provides a session management system.
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In this guide, you will quickly learn how to use the collaborative session management system in three parts:
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- :ref:`how-to-host`
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- :ref:`how-to-join`
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- :ref:`how-to-manage`
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.. _how-to-host:
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How to host a session
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=====================
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The multi-user add-on relies on a Client-Server architecture.
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The server is the heart of the collaborative session.
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It is what allows user's blender instances to communicate with each other.
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In simple terms, *Hosting a session* means *run a local server and connect the local client to it*.
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When I say **local server** I mean a server which is accessible from the LAN (Local Area Network) without requiring an internet connection.
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However, there are times when you will need to host a session over the internet.
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In this case, I strongly recommend that you read the :ref:`internet-guide` tutorial.
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.. _user-info:
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--------------------------------
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1. Fill in your user information
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--------------------------------
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The **User Info** panel (See image below) allows you to customise your online identity.
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.. figure:: img/quickstart_user_info.png
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:align: center
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User info panel
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Let's fill in those two fields:
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- **name**: your online name.
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- **color**: a color used to represent you in other users' workspaces (see image below).
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During online sessions, other users will see your selected object and camera highlighted in your profile color.
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.. _user-representation:
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.. figure:: img/quickstart_user_representation.png
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:align: center
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User viewport representation aka 'User Presence'
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---------------------
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2. Set up the network
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---------------------
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When the hosting process starts, the multi-user addon will launch a local server instance.
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In the network panel, select **HOST**.
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The **Host sub-panel** (see image below) allows you to configure the server according to:
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* **Port**: Port on which the server is listening.
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* **Start from**: The session initialisation method.
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* **current scenes**: Start with the data loaded in the current blend file.
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* **an empty scene**: Clear the blend file's data and start over.
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.. danger::
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By starting from an empty scene, all of the blend data will be removed!
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Be sure to save your existing work before launching the session.
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* **Admin password**: The session administration password.
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.. figure:: img/quickstart_host.png
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:align: center
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:alt: host menu
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Host network panel
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.. note:: Additional configuration setting can be found in the :ref:`advanced` section.
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Once everything is set up, you can hit the **HOST** button to launch the session!
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This will do two things:
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* Start a local server
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* Connect you to it as an :ref:`admin`
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During an online session, various actions are available to you, go to :ref:`how-to-manage` section to
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learn more about them.
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.. _how-to-join:
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How to join a session
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=====================
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This section describes how join a launched session.
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Before starting make sure that you have access to the session IP address and port number.
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--------------------------------
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1. Fill in your user information
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--------------------------------
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Follow the user-info_ section for this step.
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----------------
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2. Network setup
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----------------
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In the network panel, select **JOIN**.
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The **join sub-panel** (see image below) allows you to configure your client to join a
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collaborative session which is already hosted.
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.. figure:: img/quickstart_join.png
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:align: center
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:alt: Connect menu
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Connection panel
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Fill in the fields with your information:
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- **IP**: the host's IP address.
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- **Port**: the host's port number.
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- **Connect as admin**: connect yourself with **admin rights** (see :ref:`admin` ) to the session.
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.. Maybe something more explicit here
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.. note::
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Additional configuration settings can be found in the :ref:`advanced` section.
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Once you've configured every field, hit the button **CONNECT** to join the session !
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When the :ref:`session-status` is **ONLINE** you are online and ready to start co-creating.
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.. note::
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When starting a **dedicated server**, the session status screen will take you to the **LOBBY**, awaiting an admin to start the session.
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If the session status is set to **LOBBY** and you are a regular user, you need to wait for the admin to launch the scene.
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If you are the admin, you just need to initialise the repository to start the session (see image below).
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.. figure:: img/quickstart_session_init.png
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:align: center
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Session initialisation for dedicated server
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During an online session, various actions are available to you. Go to :ref:`how-to-manage` to
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learn more about them.
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.. _how-to-manage:
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How to manage a session
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=======================
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The quality of a collaborative session directly depends on the quality of the network connection, and the communication between the users. This section describes
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various tools which have been made in an effort to ease the communication between your fellow creators.
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Feel free to suggest any ideas for communication tools `here <https://gitlab.com/slumber/multi-user/-/issues/75>`_ .
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---------------------------
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Change replication behavior
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---------------------------
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During a session, multi-user will replicate all of your local modifications to the scene, to all other users' blender instances.
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In order to avoid annoying other users when you are experimenting, you can flag some of your local modifications to be ignored via
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various flags present at the top of the panel (see red area in the image below). Those flags are explained in the :ref:`replication` section.
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.. figure:: img/quickstart_replication.png
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:align: center
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Session replication flags
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--------------------
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Monitor online users
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--------------------
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One of the most vital tools is the **Online user panel**. It lists all connected
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users' information including your own:
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* **Role** : if a user is an admin or a regular user.
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* **Location**: Where the user is actually working.
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* **Frame**: When (on which frame) the user is working.
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* **Ping**: user's connection delay in milliseconds
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.. figure:: img/quickstart_users.png
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:align: center
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Online user panel
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By selecting a user in the list you'll have access to different users' related **actions**.
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Those operators allow you to experience the selected user's state in two different dimensions: **SPACE** and **TIME**.
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Snapping in space
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-----------------
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The **CAMERA button** (Also called **snap view** operator) allow you to snap to
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the user's viewpoint. To disable the snap, click on the button once again. This action
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serves different purposes such as easing the review process, and working together on a large or populated world.
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.. hint::
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If the target user is located in another scene, the **snap view** operator will send you to their scene.
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.. figure:: img/quickstart_snap_view.gif
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:align: center
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Snap view in action
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Snapping in time
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----------------
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The **CLOCK button** (Also called **snap time** operator) allows you to snap to
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the user's time (current frame). To disable the snap, click on the button once again.
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This action helps various multiple creators to work in the same time-frame
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(for instance multiple animators).
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.. figure:: img/quickstart_snap_time.gif
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:align: center
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Snap time in action
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Kick a user
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-----------
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.. warning:: Only available for :ref:`admin` !
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The **CROSS button** (Also called **kick** operator) allows the administrator to kick the selected user. This can be helpful if a user is acting unruly, but more importantly, if they are experiencing a high ping which is slowing down the scene. Meanwhile, in the target user's world, the session will properly disconnect.
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Change users display
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Presence is the multi-user module responsible for displaying user presence. During the session,
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it draw users' related information in your viewport such as:
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* Username
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* User point of view
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* User selection
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.. figure:: img/quickstart_presence.png
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:align: center
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Presence show flags
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The presence overlay panel (see image above) allows you to enable/disable
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various drawn parts via the following flags:
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- **Show session status**: display the session status in the viewport
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.. figure:: img/quickstart_status.png
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:align: center
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- **Text scale**: session status text size
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- **Vertical/Horizontal position**: session position in the viewport
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- **Show selected objects**: display other users' current selections
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- **Show users**: display users' current viewpoint
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- **Show different scenes**: display users working on other scenes
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-----------
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Manage data
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-----------
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In order to understand replication data managment, a quick introduction to the multi-user data workflow is in order.
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The first thing to know: until now, the addon relies on data-based replication. In simple words, it means that it replicates
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the resultant output of a user's actions.
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To replicate datablocks between clients, multi-user relies on a standard distributed architecture:
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- The server stores the "master" version of the work.
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- Each client has a local version of the work.
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When an artist modifies something in the scene, here is what is happening in the background:
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1. Modified data are **COMMITTED** to the local repository.
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2. Once committed locally, they are **PUSHED** to the server
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3. As soon as the server receives updates, they are stored locally and pushed to every other client
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At the top of this data management system, a rights management system prevents
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multiple users from modifying the same data at the same time. A datablock may belong to
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a connected user or be under :ref:`common-right<**COMMON**>` rights.
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.. note::
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In a near future, the rights management system will support roles to allow multiple users to
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work on different aspects of the same datablock.
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The Repository panel (see image below) allows you to monitor, change datablock states and rights manually.
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.. figure:: img/quickstart_save_session_data.png
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:align: center
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Repository panel
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The **show only owned** flag allows you to see which datablocks you are currently modifying.
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.. warning::
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If you are editing a datablock not listed with this flag enabled, it means that you have not been granted the rights to modify it.
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So, it won't be updated to other clients!
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Here is a quick list of available actions:
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+---------------------------------------+-------------------+------------------------------------------------------------------------------------+
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| icon | Action | Description |
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+=======================================+===================+====================================================================================+
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| .. image:: img/quickstart_push.png | **Push** | push data-block to other clients |
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+---------------------------------------+-------------------+------------------------------------------------------------------------------------+
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| .. image:: img/quickstart_pull.png | **Pull** | pull last version into blender |
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+---------------------------------------+-------------------+------------------------------------------------------------------------------------+
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| .. image:: img/quickstart_refresh.png | **Reset** | Reset local change to the server version |
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+---------------------------------------+-------------------+------------------------------------------------------------------------------------+
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| .. image:: img/quickstart_unlock.png | **Lock/Unlock** | If locked, does nothing. If unlocked, grant modification rights to another user. |
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+---------------------------------------+-------------------+------------------------------------------------------------------------------------+
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| .. image:: img/quickstart_remove.png | **Delete** | Remove the data-block from network replication |
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+---------------------------------------+-------------------+------------------------------------------------------------------------------------+
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Save session data
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-----------------
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.. danger::
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This is an experimental feature, until the stable release it is highly recommended to use regular .blend save.
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The save session data allows you to create a backup of the session data.
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When you hit the **save session data** button, the following popup dialog will appear.
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It allows you to choose the destination folder and if you want to run an auto-save.
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.. figure:: img/quickstart_save_session_data_dialog.png
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:align: center
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Save session data dialog.
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If you enabled the auto-save option, you can cancel it from the **Cancel auto-save** button.
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.. figure:: img/quickstart_save_session_data_cancel.png
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:align: center
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Cancel session autosave.
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To import session data backups, use the following **Multiuser session snapshot** import dialog
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.. figure:: img/quickstart_import_session_data.png
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:align: center
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Import session data dialog.
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.. note::
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It is not yet possible to start a session directly from a backup.
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.. _advanced:
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Advanced settings
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=================
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This section contains optional settings to configure the session behavior.
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.. figure:: img/quickstart_advanced.png
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:align: center
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Advanced configuration panel
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-------
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Network
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-------
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.. figure:: img/quickstart_advanced_network.png
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:align: center
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Advanced network settings
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**Timeout (in milliseconds)** is the maximum ping authorized before auto-disconnecting.
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You should only increase it if you have a bad connection.
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.. _replication:
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-----------
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Replication
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.. figure:: img/quickstart_advanced_replication.png
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:align: center
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Advanced replication settings
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**Synchronize render settings** (only host) enable replication of EEVEE and CYCLES render settings to match renders between clients.
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**Synchronize active camera** sync the scene's active camera.
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**Edit Mode Updates** enable objects to update while you are in Edit_Mode.
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.. warning:: Edit Mode Updates kills the session's performance with complex objects (heavy meshes, gpencil, etc...).
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**Update method** allows you to change how replication updates are triggered. Until now, two update methods are implemented:
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- **Default**: Use external threads to monitor datablocks changes. Slower and less accurate.
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- **Despgraph ⚠️**: Use the blender dependency graph to trigger updates. Faster but experimental and unstable !
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**Properties frequency grid** set a custom replication frequency for each type of data-block:
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- **Refresh**: pushed data update rate (in second)
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- **Apply**: pulled data update rate (in second)
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-----
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Cache
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-----
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Multi-user allows you to replicate external dependencies such as images (textures, hdris, etc...), movies, and sounds.
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On each client, the files will be stored in the multi-user cache folder.
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.. figure:: img/quickstart_advanced_cache.png
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:align: center
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Advanced cache settings
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**cache_directory** choose where cached files (images, sound, movies) will be saved.
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**Clear memory filecache** will save memory space at runtime by removing the file content from memory as soon as it has been written to the disk.
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**Clear cache** will remove all files from the cache folder.
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.. warning:: Clearing the cache could break your scene images/movies/sounds if they are used in a blend file! Try saving the blend file and choosing 'Pack all into blend' before clearing the cache.
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---
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Log
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---
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.. figure:: img/quickstart_advanced_logging.png
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:align: center
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Advanced log settings
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**log level** allows you to set the level of detail captured in multi-user's logging output. Here is a brief description on the level of detail for each value of the logging parameter:
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+-----------+-----------------------------------------------+
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| Log level | Description |
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+===========+===============================================+
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| ERROR | Shows only critical errors |
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+-----------+-----------------------------------------------+
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| WARNING | Shows only errors (of all kinds) |
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+-----------+-----------------------------------------------+
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| INFO | Shows only status-related messages and errors |
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+-----------+-----------------------------------------------+
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| DEBUG | Shows all possible information |
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+-----------+-----------------------------------------------+ |