Thunderhead Engineering

PyroSim 2023.1.0426

Released on April 17, 2023

Printable Version

Product Downloads

To install this version of Pyrosim on your computer choose an installer below. The "Portable Zip" option of Pyrosim can be run without overwriting the current version installed on your computer.

64-bit Installer
Portable Zip

License Manager Downloads

To install the Thunderhead License Manager on your computer, choose an installer below.

64-bit Installer
License Manager Documentation

Release Notes

This release supports FDS 6.8.0, adds rich support for HVAC systems in Results, makes UI and performance improvements, and fixes some bugs.

This version of PyroSim is designed for FDS version 6.8.0 and uses version 11.0.16_8 of the OpenJDK Java VM.

Changes since PyroSim 2022.3.1208:

UI Improvements and Changes
  • Added missing HVAC and Duct icons in the Devices menu.
  • Moved Results related actions from Analysis menu to Results menu.
  • Added Preview FDS Blocks in View menu.
  • Added View->Show Object Types for consistency with Pathfinder.
  • Replaced Results icon for consistency with Pathfinder.
  • Changed the order of menu items for consistency with Pathfinder.
  • Changed names of three items in Results menu.
  • Removed cut/copy/paste toolbar actions.
  • Removed new action in toolbar.
  • Removed object properties from toolbar.
  • Moved floor related items to floor toolbar above navigation view.
  • Replaced view camera dropdown with toolbar buttons.
  • Removed delete toolbar action.
  • Removed separators between combo boxes and button groups.
  • Added missing menu icons.
New Features
  • Added support for FDS 6.8.0
  • Added a NETWORK_ID to HVAC nodes and ducts.
Bug Fixes
  • the current expansion state of a group node is now preserved when dragging and dropping an item into the group
  • Fixed a bug that dropped SLCF record ID properties when importing an FDS file
  • Fixed a bug that caused legacy 3D Slices to reset their names when opening in the newest version
  • Fixed a bug that rendered incorrect names for 2D and 3D slices in the Scenarios dialog

Changes to Results:

Quantity Plotting
  • Added a the ability to plot quantities related to a room, door, or occupant by right clicking them in Results.
UI Improvements and Changes
  • Removed separators between combo boxes and button groups.
  • Changed the order of menu items to be consistent with PyroSim and Pathfinder.
  • Added missing menu icons.
  • Added floor tool-bar above navigation view.
HVAC Systems
  • Added the ability to view FDS HVAC systems in Results.
Bug Fixes
  • Fixed a bug where background images cannot be shown.
  • Fixed some screen artifacts when using SMAA 2x or motion blur.
  • Fixed a crash that could occur when trying to load a corrupt s3d file for fire/smoke. Results will now try to skip corrupt data.
  • Fixed an issue where the lower-left axes exhibited aliasing when using one of the SMAA anti-aliasing options.
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See all other Pyrosim Release Notes.