Production Facility FAQs


About Commercial Houdini licenses

Sharing licenses with remote offices

Local Access Licenses serve across two remote offices up to 100km in distance. Global Access Licenses serve more than 100km. Workstation licenses can not be shared as they are tied to the machine installed to. Please speak with your sales representative if you need to move a license to a remote office.

Transferring ownership of licenses

License ownership may not be transferred to another company or individual. You are allowed to transfer a license to a different machine on your network. You may do this 2 times.

Are licenses operating system dependent?

No. Houdini licenses are operating system independent. As long as you have licenses to run the software, Windows, Linux and Mac can use the license (as long as you have installed the correct version of Houdini for your platform).

When does my (term based) license expire?

Licenses expire one minute before midnight local time on the date of expiry. For example, If your license says that it expires June 30th, it will expire at 11:59pm June 30th your local time.

Can I use 2 computers for my workstation license?

No. You may use 1 workstation license per computer. If you would like to run Houdini on 2 computers, you will either need to purchase a floating license or 2 workstation licenses – 1 per computer.

Our licenses are set to expire before the expiry date on the invoice. Why?

Temporary licenses are issued. Once accounting verifies payment, extensions will be issued to those licenses. If you have any questions, please contact your account manager or sales@sidefx.com.

Houdini Beta (early access) for AUP customers

Neither Houdini-Indie nor Houdini-Apprentice licenses have access to beta releases of Houdini. Licensing for these become available on the day of official point release.

Only full commercial Houdini licenses (FX and Core) that have their AUPs (Annual Upgrade Plan) active, are issued early access to the beta Houdini software.

Convert non-commercial files

If you have purchased a Commercial license and have Apprentice/Indie files to be converted, SideFX offers a one time conversion of the Apprentice/Indie files.

Please make sure to package all the .hiplc (or .hipnc) and .hdalc (or .hdanc) files you need converted. Create a zip/tar archive and send it to support@sidefx.com. As this is a one time conversion offer, make sure to package everything.

If the archive is too big to attach to email, contact support@sidefx.com to have access to the secure SFTP server.

Apprentice licenses in a Commercial facility

Some facilities wish to have Apprentice licenses for training purposes. Apprentice licenses should not be mixed with existing Commercial licenses. Great care must be taken to not open Commercial files with Apprentice licensing because the Commercial files will be downgraded to a Non-Commercial format.

Floating Apprentice licenses may be requested which should be installed to a different license server machine than the one serving Commercial licenses.

You can install Apprentice learning licenses on the individual machines themselves and tell users that they will have to switch to the Local Server using the License Administrator. However, care must be taken because if you open a Commercial file with Apprentice licenses, those files will be downgraded and will not be able to be re-open with Commercial licenses again.

Convert node locked license to floating

You can upgrade a workstation (node-locked) license to a network (floating) license. There is a cost since floating licenses are more expensive.

Please contact your account manager or sales@sidefx.com for pricing.

What SideFX needs to generate licenses

All SideFX needs is a valid email address for your licensing login and for you to receive licensing notifications.

We do not require a MAC address or Host ID like other vendors.

You will be provided with a license entitlement to your account.

An entitlement is a "voucher" for a license(s) that you are entitled to install on any of your machines. An entitlement may be for a new license, or an extension/upgrade/change of IP to an existing installed license.

Entitlements are transformed into licenses when you log into the licensing system and "redeem" or claim them. When you redeem or install an entitlement, you bind it to a specific license server machine and you turn it into a license tied to that computer. It is at this point that the keystrings are generated and installed to your local machine.

How Houdini licensing works

The license management system is based on a client/server model with a license server running on one server and the applications running on one or more clients. Generally the server and client are different machines on a network. The license server software and client application may be installed together on a single machine – this is how it is used for workstation licenses.

The license server (sesinetd) keeps track of the licenses and their activity (whether they are checked out or available for use). When a Houdini product needs a license, it communicates with hserver, which is a helper program running on the client. Hserver communicates with the license server (sesinetd). It is the license server (sesinetd) that grants licenses to valid clients and collects licenses when Houdini applications terminate. If there is no hserver running on the client, Houdini will not start. On Linux and Mac OSX, hserver is started automatically when you start a Houdini application, or it can be started manually. On Windows, both hserver and the license server are started as Services named HoudiniServer and HoudiniLicenseServer respectively.

Licensing diagram for a local client and a remote license server:

Remote License

Licensing diagram for a server and client on the same machine:

Local License

Houdini product keystrings

The following table illustrates shows the license string required for each product type:

License Category Product Name Product License String Default Qty
Commercial Houdini FX Houdini FX 1
Renderer 5
Houdini Core Houdini 1
Renderer 5
Houdini Engine Houdini Engine 1
Renderer 1
Limited Commercial Houdini Indie Houdini Indie 2
Renderer (Non-Commercial) 2
Houdini Engine Indie Houdini Engine Indie 1
Renderer (Non-Commercial) 1
Educational Houdini Education Houdini Education 1
Houdini FX (Non-Commercial) 1
Renderer (Non-Commercial) 10
Houdini Engine Education Houdini Engine Education 1
Renderer (Non-Commercial) 1
Non-Commercial Houdini Apprentice Houdini FX (Non-Commercial) 1
Renderer (Non-Commercial) 1

About Houdini product keystrings

A new keystring begins at the keyword: SERVER, LICENSE, UPGRADE or EXTEND.

The SERVER keystring is a keystring which authenticates the computer to run Houdini licenses.

A Houdini product keystring begins with the word LICENSE. The LICENSE keystring has an ID associated to it called the License ID. This is how we track the product, quantity, version, expiry, and support status of the license.

Action keystrings begins with UPGRADE or EXTEND and these are applied to currently installed License ID (or, product keystring).

When you return a license, you must return the License ID itself. This will return the product keystring.

General Houdini license management

Please refer to the general License Management FAQ for things such as:

  • licensing a system without graphics
  • starting/stopping the license server
  • server logging
  • options to the server or client
  • floating licenses between networks
  • firewall setup
  • installing licenses without Internet
  • remotely manage the license server
  • how Houdini licensing works
Downloading Houdini

Please see our system requirements page to see what hardware and operating systems are supported.

To download the installation package:

  1. Go to www.sidefx.com → Get → Download
  2. The Download button will auto-select and let users download an appropriate build based on their OS. Links to other Operating Systems are provided below.

The same installation package is intended for all users: Apprentice, Indie, Commercial, Education. It is the installed license that determines which features are available in the application and what restrictions are imposed on its use.

If you want to download a specific build or version go to Daily Builds. For more about daily builds and production builds, refer to Houdini builds.

If you have an account on the website and are having trouble logging, try resetting your password: www.sidefx.com/password_reset

Houdini builds

Daily

SideFX provides new builds of Houdini almost every day. These daily builds contain bug fixes and small improvements to the software. The detailed list of fixes is available in the journal under the Support menu. By installing a daily build, users are often able to benefit right away from our agile development process.

Production

SideFX periodically designates a daily build of Houdini as a "production build". Production builds are released almost monthly and have gone through the full quality assurance process, so they are at least as stable as the original. It is thus advisable to upgrade from time to time, particularly from one production build to another to take full advantage of new improvements.

Installing Houdini
  • You will need to have "Admin" (administrator, root or sudo) access to install Houdini.
  • If you are new to Houdini or upgrading a point version (eg. 16.5 to 17.0), you will need to install the License *Server tools in addition to the Houdini software.
  • If you have installed a version of Houdini and are to install a daily build of the same version, you do not need to install the License Server tools.
  • In general, uninstalling a previous version of Houdini is NOT required to install a new.

Windows:

  1. Run the Houdini setup program by double-clicking the downloaded executable.
  2. Follow the instructions in the installer. Once installed, the application is available by default through:

    • Start Menu → All Programs → Side Effects Software → Houdini version
  3. The licensing menu will appear during the installation process if no installed licenses can be detected.

    • If you are installing Apprentice or Indie, choose Apprentice Licensing. This will take out the complexities of running a local license server.
    • If you are installing a commercial product, choose Commercial Licensing.

Please refer to How do I start the License Administrator? to access Houdini's licensing tool.

For more information about licensing Houdini please refer to How do I license Houdini?

Linux:

Installer must be run as either the root user or with sudo.

Note if you are running with sudo, you must make sure that the install file is not located in root's home folder as this will give you permission errors.

  1. Open a terminal.
  2. Unpack the downloaded tar.gz archive. For example,
    $ tar -xvf houdini-17.5.173.16-linux_x86_64_gcc4.8.tar.gz
    This should create a directory called houdini-17.5.173.16-linux_x86_64_gcc4.8/
  3. Run the houdini.install script:
    • $ cd houdini-17.5.173.16-linux_x86_64_gcc4.8/
    • $ sudo ./houdini.install
      You can also double click on the houdini.install file with your mouse. It will run the installer in a terminal.
    • The installation menu will appear. If you are installing Apprentice or Indie, choose Apprentice Licensing. This will take out the complexities of running a local license server.
    • If you are installing a commercial product, choose Commercial Licensing.

Please refer to How do I start the License Administrator? to access Houdini's licensing tool.

For more information about licensing Houdini please refer to How do I license Houdini?

Mac

  1. Run the Houdini setup program by double-clicking the downloaded .dmg file.
  2. Follow the instructions in the installer. Once installed, the application is available by default through:

    • Go → Applications → Houdini → Houdini version
  3. The licensing menu will appear during the installation process if no installed licenses can be detected.

    • If you are installing Apprentice or Indie, choose Apprentice Licensing. This will take out the complexities of running a local license server.
    • If you are installing a commercial product, choose Commercial Licensing.

Please refer to How do I start the License Administrator? to access Houdini's licensing tool.

For more information about licensing Houdini please refer to How do I license Houdini?

Silent install/uninstall

For silent installs run the installer with /? for documentation:

houdini-17.5.xxx-win64.exe /?

The /Registry option ("Yes" or "No", default "Yes") controls whether or not the installer will create Registry keys when installing Houdini. This mostly impacts whether or not the version of Houdini will show up in the Add/Remove Programs list.

It is recommended to use the defaults unless you have specific needs, such as installing Houdini on a shared network path. You cannot cannot define the "License Server Path" with the /Registry option.

To set the License Server

Linux and Mac:

There is an environment variable called SESI_LMHOST to set the license server

Windows:

The best solution is to modify the registry:

reg add "hklm\software\Side Effects Software\Houdini" /v ~LicenseServer /t reg_sz /d server-name /f

To uninstall:

Run the uninstall.exe located in Program Files -> Side Effects Software -> houdini 17.5.xxx.

Type /? for options

Type /S for silent.

License Administration

The License Administrator (hkey) is the easiest way to install or manage Houdini licenses.

The licensing tools for Houdini are:

hkey: A graphical licensing tool for managing licenses. Also known as License Administrator.
sesictrl: The non-graphical "hkey". Use this to perform license operations in the terminal shell.
sesinetd: The license server daemon/service.
hserver: The client helper program that acquires licenses by communicating with sesinetd.

Refer to the Licensing Tools page for each operating system:

If you are running a headless system (a machine without a graphical display), please refer to to Using the License Administrator non-graphically on the general License Management FAQ.

To launch the License Administrator

Windows:

  • Start menu -> All Programs -> Side Effects Software -> Houdini version -> Administrative Tools -> License Administrator

Linux:

  • Applications -> Side Effects Software -> Houdini version -> Administrative Tools -> License Administrator

  • Or open a Terminal and type:
    cd /opt/hfs17.5
    source houdini_setup
    hkey

Mac:
* Applications -> Houdini -> Houdini 17.5.xxx -> Administrative Tools -> License Administrator

When installing/reinstalling/returning licenses, the License Administrator connects to Side Effects Software using port 80 (http). If you require a proxy to access the web, please see this section.

From Houdini 14, OpenGL is no longer required to run License Administrator.

If you are having difficulties logging into your licensing account from the License Administrator, try resetting your website password at www.sidefx.com/profile. By resetting your website password, your licensing system password will also be updated so the two are unified.

Remotely administer the license server
The license server can be remotely administered by one machine, group of machines or by any machine on a network, depending on the setup.

For more information see Remote administration of the license server.

Licensing Houdini

There are few ways of installing licenses. The easiest method is described below:

By starting Houdini for the first time or without a license, you will be prompted to install either:

  • Apprentice (free) license
  • Paid License

Choosing Apprentice, an Apprentice license is installed and Houdini will launch in the non-commerical mode.

By choosing Paid License, the Houdini License Administrator will show up.

  1. Select File->Install Licenses (Windows/Linux).

    • On Mac OSX there is no File menu option. Start the License Administrator and go to the License Administrator menu (top left) and select Install Licenses.
  2. Enter your licensing login ID and the password.

  3. You will see a list of licenses to which you are entitled.

  4. If necessary, make modifications to the quantities.

    • You do not need to change the quantity for network licensing as the client machines will all look to your central server for licenses

    • You do need to change the quantities if installing workstation licenses. For example, if you have purchased 3 Houdini FX Workstation licences, Quantity will be 3 at first. You will need to set the Quantity to 1 on each workstation you perform installation. The quantity will be one lesss each time.

  5. Press the Install button.

To manually start the License Administrator, please refer to How do I start the Houdini License Administrator.

You may change your licensing password at http://www.sidefx.com/profile/. You must first log in with your current password to do so.

If your computer does not have Internet access, please refer to Manually installing licenses.

Setup the Houdini environment

If you would like to use the command line to run certain Houdini programs and commands, you must set up what's called an "environment". This means that Houdini will be able to find all the directories and programs that it needs in order to run the command you tell it to (for example, sesictrl).

Windows

  • Start menu -> All Programs -> Side Effects Software -> Houdini version -> Utilities -> Command Line Tools

Linux

  1. cd path to Houdini installation
  2. source houdini_setup
    • Example:
      $ cd /opt/hfs17.5.xxx
      $ source houdini_setup

This is useful to put into login scripts so you can have the environment setup upon login.

Mac

  • Applications -> Houdini -> Houdini 17.5.xxx -> Utilities -> Houdini Terminal 17.5.xxx
Setup a network license server

Only floating (LAL or GAL) licenses may be served to the network by a central license server. A Workstation licenses must be installed onto the individual computer itself.

When choosing a machine to be a license server, make sure to pick a machine that has a high uptime. This means that the machine will not be turned off or rebooted often.

Please also see our system requirements page to see what platforms we support.

A virtual machine (vm) may be setup to act as a Houdini license server.

The steps:

  1. Download Houdini onto the machine to be the license server

  2. Install Houdini on the license server machine.

  3. License Houdini using the License Administrator or sesictrl, the non-graphical licensing tool.

  4. Download and Install Houdini onto the client computers and have them point to the network license server to acquire a license.

For license servers running Windows and Mac OSX, you must install the entire Houdini package, including the Commercial License component.

For license servers running Linux, you do have the option of only installing the license server component. You may use the default houdini.install script found in the installer. You can select to only install the Commercial License server. There is also a separate license server install script that may be used instead. This script is called sesinetd.install.

Allowing access to the license server
  1. If you are running any firewalls, ensure the appropriate ports are open. Please refer to Firewall ports for Houdini licensing

  2. If you are running a custom IP subnet masks in your keystrings to either restrict or grant networks access to your licenses please refer below under Controlling access to the license server. Note that on the client machines you do not need to install the licensing tools (ie. Commercial Licensing or Apprentice Licensing).

Controlling access to the license server

Houdini licensing is a two-phase process. The first phase is the client will query the license server for information about what products are available, their quantities, expiry dates, and network access mode (LAL, GAL, locked). The second phase is the license checkout.

The client will need appropriate permissions for both phases of the licensing process.

Permissions are handled by the IP subnet mask.

The default IP subnet masks for networked (floating) licenses:

LAL (Local Access)

 +.+.*.*,192.168.*.*,10.*.*.*,172.*.*.*

GAL (Global Access)

 +.*.*.*,192.168.*.*,10.*.*.*,172.*.*.*

By default, Render licenses GAL licenses.

The +... and +.+..* refers to subnet the license server itself is on.

If your network topology includes the default LAL or GAL subnets then you should be good to go without any additional configuration. Just make sure if you are running any firewalls, the appropriate ports are open. Please refer to Firewall ports for Houdini licensing.

If you would like to change the default IP subnet mask to allow more networks or restrict networks, you can have a custom IP subnet mask for your keystrings. The Change of IP entitlement will modify your existing keystring IP subnet masks without the need of returning licenses.

Please contact either your account manager or support@sidefx.com to request any changes to your default IP subnet masks of your licenses.

To modify your existing IP subnet mask, you will need to ensure two things:

1) The keystrings themselves have the appropriate subnets listed to allow clients to checkout licenses.

2) Create the sesinetd.options file to allow clients on those subnets to query the license server. This is accomplished by adding a -m flag followed by a comma separated list of the subnets. Make sure they match what is listed in the keystrings. The license server service will need to be restarted.

Example

A facility wishes to restrict Houdini access to networks 192.168.50. and 10.10.10. with the license server itself on the 192.168.50 network. The sesinetd.options file have something that looks like this all on one line:

 -V 2 -z 250000 -m 192.168.50.*,10.10.*.10*

For more information please refer to Houdini licenses across multiple networks.

Setup client machines

The easiest setup will be to have a central license server with clients looking to that server for licenses. Workstation licenses are node-locked licenses. They cannot be floated across the network. They are restricted to the machine installed on. Floating licenses are either LAL or GAL.

Please see our system requirements page to see what hardware and operating systems are supported.

The steps:

  1. Download Houdini onto the workstation.

  2. Install Houdini onto the workstation.

  3. Launch the License Administrator to have the client computer look to the license server

If you have setup a network license server, you don't have to install the licensing tools on the workstation as it will look to the remote server for a license.

You can use the License Administrator (hkey) on the client machine.

  1. Open the License Administrator (hkey)
  2. Go to File -> Change License Server
  3. Type the name of the machine that is serving the licenses

If you have setup the Houdini environment, you can tell hserver to look to the remote server:

hserver -S hostname

where hostname is the name of your license server

There is also a hidden file called .sesi_licenses.pref that you can place in your home directory. The contents will be:

serverhost=hostname

where the hostname will be the name of your server.

If you are looking to install licenses locally on the workstation, refer to License a workstation.

If the client is having issues connecting to the remote license server, please check the server firewall. Ensure that the licenses installed on the server have the correct network IP masks.

Moving licenses

If you need to move your licenses to a different machine, follow the section How do I return my licenses? to return your license back to your account at Side Effects Software.

Returning the License ID will unregister the products (keystrings) from the computer name and hardware and they will be put back into your account as unredeemed entitlements which can then be installed to a different system. You may then redeem the licenses as normal onto the new machine.

Each time you return a License ID, that License ID's Return Count will be reduced by 1. All License IDs have a default Return Count of 3. If you need to reset this counter please contact support@sidefx.com

Upgrade licenses

Upgrades are provided to those Commercial licenses with an active support contract (AUP).

Once a new point version of Houdini is released, you will be notified of your upgrades. You will need to install the upgrades to your existing licenses if you would like to use the new point release of Houdini.

For example, if you have Houdini 17.0 licenses and would like to run Houdini 17.5, it is not enough that you install the Houdini 17.5 software. You will have to install the upgrades to your existing 17.0 licenses. Those licenses will need to be upgraded to 17.5.

You will be able to run older versions of Houdini with 17.5 licenses (17.0 and older).

You should be able to install 17.5 upgrades onto a 17.0/16.5/16.0 license server. It is, however, recommended to upgrade the license server software to 17.5.

Download and install the latest Production Build or the latest Daily Build.

To upgrade licenses:

  1. Launch the License Administrator on the machine with the licenses to be upgraded.

  2. Select File->Install Licenses (Windows/Linux).

    • On Mac OSX there is no File menu option. Start the License Administrator and go to the License Administrator menu (top left) and select Install Licenses.
  3. Enter your email and password used for Houdini licensing. If you are having problems logging into your account through the License Administrator, please see the section I can't log into the License Administrator.

  4. Press the Install button. Note if you don't want to upgrade everything at once, make sure to type 0 in the Quantity box of the License IDs you do not wish to upgrade. No licenses are uninstalled during this process. This will only upgrade the License IDs which have been selected.

This process will generate the keystrings and install your upgrades. The keystrings will be automatically written to the licenses file on the machine.

Problems

Sometimes the upgrade keystrings do not get written to the locally installed licenses file but show as redeemed on your account on the web portal. If this is the case, you can manually install the keystrings using the License Administrator. The upgrade keystrings will begin with the word UPGRADE (in all capital letters).

For example:

This is an upgrade keystring to upgrade from 17.0 to 17.5

UPGRADE 3e6d2c49 17.0 17.5 735c45f6 WwkCSHzzEHKIPdfWll7f2hRRjZWugeFx0ySrtalsAECN@cARK6oKmf2

Should you have any issues installing your upgrades, please contact support@sidefx.com

Return licenses

Returning licenses must be initiated by the computer itself. You cannot return licenses through your account on the website. You must use the License Administrator (hkey) or sesictrl.

When you return licenses, the licenses are unregistered from the computer name and hardware. They are then put back onto your SideFX licensing account as uninstalled license entitlements.

When you return a license, a disable code is calculated and written to your licenses file on the computer. The disable code is also recorded and added to your account. The License ID is then invalided.

There are 2 different ways to return a license:

Using the License Administrator

  1. Start License Administrator (hkey)
  2. Right-click on the license ID to return
  3. Select "Return License"
  4. Enter your email address and the password provided to you by Side Effects Software

Using the sesictrl command line tool

To set up the Houdini command line environment, please refer here..

To use sesictrl to return licenses:
1. Run sesictrl -s to get a list of installed licenses (the first column is the license ID)
2. Run sesictrl -d license-id for license to be returned
3. Enter your email address and password when prompted

Note: If you have a license with multiple tokens and you only want to return a few of them, you must return them all and then re-redeem the ones you want. This is because you must return the entire License ID. One License ID may have many tokens(licenses) associated with it.

Note:You cannot return your licenses from the web-based licensing page at http://www.sidefx.com/services/licenses/.

Extend licenses

Once finance has confirmed payment for your temporary licenses, you will be issued extensions to the full term listed on your invoice. Once the extensions have been installed, the new expiry date should be listed on the installed licenses.

To extend your license expiry date

  1. Launch the License Administrator on the machine with the licenses to be upgraded.

  2. Select File->Install Licenses (Windows/Linux).

    • On Mac OSX there is no File menu option. Start the License Administrator and go to the License Administrator menu (top left) and select Install Licenses.
  3. Enter your email and password used for Houdini licensing. If you are having problems logging into your account through the License Administrator, please see the section I can't log into the License Administrator.

  4. Press the Install button.

This process will generate the keystrings and install your license extensions. The keystrings will be written to the licenses file on the machine automatically. Your licenses should have a new expiry date.

Problems

Sometimes the extension keystrings do not get written to the locally installed licenses file but show as redeemed on your account on the web portal. If this is the case, you can manually install the keystrings using the License Administrator. The extension keystrings will begin with the word EXTEND (in all capital letters).

For example:

This is an extension keystring to extend the license rental from March 14, 2019 to March 14, 2020

EXTEND 3e6d2c49 13-mar-2019 13-mar-2020 915f251a bd8a7ee103745dafb6ad98b3f5b27e0da656c509c0819

Should you have any issues installing your expiry date extensions, please contact support@sidefx.com

Reinstall licenses

Sometimes the licenses file may get deleted, the disk may get reformatted, or the operating system may get reinstalled. In such cases, the licenses will be removed from the computer. To reinstall the licenses, the computer name must be the same as the original name for which the licenses have been issued. Then you can use License Administrator to reinstall the lost keys.

  1. Open the License Administrator (hkey)
  2. Select File -> Install Licenses
  3. Log in
  4. In the dialog click on the "Licenses" tab
  5. Select the checkboxes for the licenses that you want to reinstall (this table lists all the missing non-expired licenses that match your computer name)
  6. Select the checkbox to reinstall the SERVER key as well (just in case it is missing too)
  7. Press Install button

This should reinstall the selected licenses on your computer. If you don't have the internet connection, you will need to reinstall the licenses by manually entering the keys.

Run older Houdini versions

Houdini is backwards compatible. Older versions of Houdini will run with the most recent license.

For example, if you have a Houdini 17.5 license, you will be able to open Houdini 17.5 and older (17.0, 16.5, 16.0 etc...).

If installing older versions of Houdini, make sure to not install the licensing component as it will overwrite the latest licensing mechanism. You will need to have the latest license server software and licenses. Installing older versions will overwrite this.

If you do overwrite the latest licensing software then you just have to reinstall the latest Houdini version again.

Mantra rendering

Each time you call Mantra, it will use 1 Mantra token for rendering. Mantra is per machine - not per core.

When you purchase Houdini FX or Houdini Core, you are entitled to Unlimited Mantra tokens.

Initially, we send you 5 Mantra tokens for each Houdini FX and each Houdini Core.

To set up more render nodes and access your unlimited supply of Mantra tokens, please contact sales@sidefx.com or support@sidefx.com.

If you are unable to render with Mantra: Make sure to have the Render license installed.

If running Houdini Indie or Houdini Apprentice, the render license will be listed as Render (NC) meaning non-commercial render.

If you are trying to render using the most recent version of Houdini, the render license must also be at the current version. For example, if you are trying to render in a Houdini 17.0 session, Mantra will look for a version 17.0 Render license.

Houdini licenses are backwards compatible. This means that you can run older versions of Houdini using the most recent licensed version. For example, Houdini 16.5 or below will open with a version 17.0 license.

This is true for all Houdini products - FX, Core, Engine, Mantra, Education, Indie, Apprentice

Mplay licensing

You may run unlimited instances of Mplay as long as you have 1 valid Houdini product license (Houdini FX, Houdini, Houdini Engine).

HQueue: Houdini’s distributed render and simulation manager

HQueue is a general-purpose job management system that distributes, monitors and manages tasks across a collection of computing nodes, or client machines. It specializes in managing render and dynamic simulation jobs submitted from Houdini. However, it be customized to work with any job from any application.

www.sidefx.com/docs/houdini/hqueue

Common Licensing Problems

Please refer to Common Licensing Problems for help with licensing issues.

Contacting support

If you are experiencing difficulties with any part of the licensing process or have questions/issues with Houdini:

  1. Start the Houdini License Administrator (hkey)
  2. Under the View menu, select "Diagnostic Information"
  3. Save the file and attach it in an email addressed to support@sidefx.com

If you are running a headless (non-graphical) system, please refer Generate license diagnostic information.

You may also refer to Common Licensing Problems.