Release Notes for VisIt 3.4.1

Welcome to VisIt’s release notes page. This page describes the important enhancements and bug-fixes that were added to this release.

1. Bugs fixed in version 3.4.1
2. Enhancements in version 3.4.1
3. Third-party Libraries used for version 3.4.1

Bugs fixed in version 3.4.1

• Fixed a bug in the Wavefront OBJ Writer that would result in incorrect coloring for minimum or maximum values in downstream tools such as PowerPoint.
• Fixed a bug with Pick unable to return results for 2D datasets.
• Fixed a bug where vtk error messages were printed to the terminal when adding an Image Annotation Object to the viewer window.
• Changed default logic for guessing cycles from file names to not consider any digits in the file name extension if present. This fixed the guessing logic for cases where a file extension includes a digit (e.g. .h5m)
• Fixed a bug where glyphed line endpoints could be colored incorrectly in the Pseudocolor plot.
• Fixed a VTK Texture Buffer error that caused error messages to be printed to the command line.
• Fixed a Mesh plot bug where transparency would not be honored.
• Fixed compile error where some executable targets were missing QSurfaceFormat include.
• Fixed a Volume plot but that would cause the parallel engine to crash when certain operators were used in conjunction with the plot.
• Fixed a Cube reader bug that didn’t read in multiple orbital data files correctly.
• Fixed a bug with the Expression window that caused the ‘Python’ editor to be the default tab when the window was first opened.
• Fixed a bug with the Cartographic Projection operator where the projections were a no-op.
• Removed custom logic forcing the opacity slider to snap to zero if the mouse dragged the slider outside the widget it belongs to.
• Fixed a bug in the Blueprint reader causing unstructured point topologies to display incorrectly if they did not use all of the provided coordinates.
• Removed sxterm host profile options for LLNL LSF Machines. sxterm is not available on these systems.
• Several bugs were fixed in UNV plugin including fixing normals for quads.
• Fixed a problem with global node ids on point meshes from Silo plugin.
• Fixed a bug in the Wavefront OBJ Writer that caused zonal variables saved out using the writer to have some incorrect colors in downstream tools such as PowerPoint.
• Fixed srun launch issues on LLNL TOSS4 systems.

Enhancements in version 3.4.1

• Added the ability to invert the color table for the Wavefront OBJ writer.
• Upgraded MFEM library version to 4.6.0.
• The surface_normal expression now accepts mesh types other than polydata, allowing it to be used more easily as an operator-created variable.
• Added more keywords (“MFA”, “2fa”, “Autentication”, and “OTP”) that cause VisIt clients to open a second popup for a password.
• Updated the ADIOS2 library version to 2.10.0-rc1, allowing BP5 files to be read by VisIt.
• Removed the dependency on C-Blosc1.
• Added a new dependency on C-Blosc2.
• VisIt’s Blueprint reader was enhanced so fields in Blueprint index files can supply a display_name hint that specifies the name used to expose the field in VisIt. This feature enables the index file to group related variables under sub-menus if the names in include slash characters.
• VisIt’s Blueprint reader was enhanced so fields that are low-order but are associated with a high-order mesh can be refined when the mesh is refined, as when the user applies a MultiresControl operator. This enables VisIt to correctly view such fields.
• VisIt’s CLI has a new GetLastMessage() function that returns the last message that VisIt issued, regardless of its type.
• GetPlotInformation() can now contain entries for multiple-curves when Query-over-time is performed on multiple variables. For example, if a pick-through-time was performed for variables ‘u’ and ‘v’, the curve for ‘v’ would be retrieved via ‘GetPlotInformation()[‘Curves’][‘v’]. Single variable results will still be retrieved via ‘GetPlotInformation()[‘Curve’].
• The ADIOS2 database plugin learned a new flavor of file type: Pixie3D.
• A number of improvements were made to the UNV plugin including quadric elements, support for antique SDRC/I-Deas files prior to Master Series (versions 4,5 and 6), GMSH hidden polygon linear element.
• The Docker files for Debian 10,11,12, Fedora 31, Ubuntu 18, 20,22 have all been updated for this release. All but Ubuntu 18 build Qt 6.
• Updated LLNL host profiles for new systems
• Ported VisIt to LANL’s Crossroads (XR) System
• Refactored VisIt’s CMake Python logic to use pip instead of distutils.
• Updated VisIt to use Python 3.9.

Third-party Libraries used for version 3.4.1